mirror of https://github.com/lumapu/ahoy.git
Browse Source
Is was clear, the cmd approach does not decode payloads reliably. The modular form allows for easy tinkering. This implements * hoymiles protocol * transport-layer enables for retransmit of missed fragments * full payload decode * device specific decoders * transaction tracking enables decoding of different datasets * multi-inverter support * configuration format change to YAML (required for multi-inverter) First PoC, lots of things have to be relocated, rewritten and exteded. Currently only supports Hoymiles HM-600, more device decodes have to be added by users who have the hardware.pull/25/head
Jan-Jonas Sämann
3 years ago
7 changed files with 603 additions and 350 deletions
@ -1,11 +0,0 @@ |
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[mqtt] |
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host = 192.168.84.2 |
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port = 1883 |
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user = bla |
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password = blub |
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[dtu] |
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serial = 99978563412 |
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[inverter] |
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serial = 444473104619 |
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@ -1,239 +1,162 @@ |
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""" |
#!/usr/bin/env python3 |
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First attempt at providing basic 'master' ('DTU') functionality |
# -*- coding: utf-8 -*- |
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for Hoymiles micro inverters. |
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Based in particular on demostrated first contact by 'of22'. |
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""" |
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import sys |
import sys |
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import argparse |
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import time |
import time |
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import struct |
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import crcmod |
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import json |
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from datetime import datetime |
from datetime import datetime |
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import argparse |
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import hoymiles |
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from RF24 import RF24, RF24_PA_LOW, RF24_PA_MAX, RF24_250KBPS, RF24_CRC_DISABLED, RF24_CRC_8, RF24_CRC_16 |
from RF24 import RF24, RF24_PA_LOW, RF24_PA_MAX, RF24_250KBPS, RF24_CRC_DISABLED, RF24_CRC_8, RF24_CRC_16 |
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import paho.mqtt.client |
import paho.mqtt.client |
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from configparser import ConfigParser |
import yaml |
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#from hoymiles import ser_to_hm_addr, ser_to_esb_addr |
from yaml.loader import SafeLoader |
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import hoymiles |
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cfg = ConfigParser() |
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cfg.read('ahoy.conf') |
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mqtt_host = cfg.get('mqtt', 'host', fallback='192.168.1.1') |
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mqtt_port = cfg.getint('mqtt', 'port', fallback=1883) |
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mqtt_user = cfg.get('mqtt', 'user', fallback='') |
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mqtt_password = cfg.get('mqtt', 'password', fallback='') |
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radio = RF24(22, 0, 1000000) |
parser = argparse.ArgumentParser(description='Ahoy - Hoymiles solar inverter gateway') |
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mqtt_client = paho.mqtt.client.Client() |
parser.add_argument("-c", "--config-file", nargs="?", |
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mqtt_client.username_pw_set(mqtt_user, mqtt_password) |
help="configuration file") |
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mqtt_client.connect(mqtt_host, mqtt_port) |
global_config = parser.parse_args() |
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mqtt_client.loop_start() |
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# Master Address ('DTU') |
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dtu_ser = cfg.get('dtu', 'serial', fallback='99978563412') # identical to fc22's |
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# inverter serial numbers |
if global_config.config_file: |
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inv_ser = cfg.get('inverter', 'serial', fallback='444473104619') # my inverter |
with open(global_config.config_file) as yf: |
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cfg = yaml.load(yf, Loader=SafeLoader) |
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else: |
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with open(global_config.config_file) as yf: |
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cfg = yaml.load('ahoy.yml', Loader=SafeLoader) |
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# all inverters |
radio = RF24(22, 0, 1000000) |
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#... |
hmradio = hoymiles.HoymilesNRF(device=radio) |
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mqtt_client = None |
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f_crc_m = crcmod.predefined.mkPredefinedCrcFun('modbus') |
command_queue = {} |
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f_crc8 = crcmod.mkCrcFun(0x101, initCrc=0, xorOut=0) |
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# time of last transmission - to calculcate response time |
hoymiles.HOYMILES_TRANSACTION_LOGGING=True |
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t_last_tx = 0 |
hoymiles.HOYMILES_DEBUG_LOGGING=True |
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def main_loop(): |
def main_loop(): |
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inverters = [ |
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inverter for inverter in ahoy_config.get('inverters', []) |
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if not inverter.get('disabled', False)] |
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for inverter in inverters: |
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if hoymiles.HOYMILES_DEBUG_LOGGING: |
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print(f'Poll inverter {inverter["serial"]}') |
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poll_inverter(inverter) |
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def poll_inverter(inverter): |
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inverter_ser = inverter.get('serial') |
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dtu_ser = ahoy_config.get('dtu', {}).get('serial') |
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if len(command_queue[str(inverter_ser)]) > 0: |
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payload = command_queue[str(inverter_ser)].pop(0) |
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else: |
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payload = hoymiles.compose_set_time_payload() |
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payload_ttl = 4 |
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while payload_ttl > 0: |
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payload_ttl = payload_ttl - 1 |
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com = hoymiles.InverterTransaction( |
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radio=hmradio, |
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dtu_ser=dtu_ser, |
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inverter_ser=inverter_ser, |
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request=next(hoymiles.compose_esb_packet( |
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payload, |
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seq=b'\x80', |
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src=dtu_ser, |
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dst=inverter_ser |
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))) |
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response = None |
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while com.rxtx(): |
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try: |
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response = com.get_payload() |
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payload_ttl = 0 |
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except Exception as e: |
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print(f'Error while retrieving data: {e}') |
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pass |
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if response: |
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dt = datetime.now() |
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print(f'{dt} Payload: ' + hoymiles.hexify_payload(response)) |
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decoder = hoymiles.ResponseDecoder(response, |
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request=com.request, |
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inverter_ser=inverter_ser |
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) |
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result = decoder.decode() |
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if isinstance(result, hoymiles.decoders.StatusResponse): |
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data = result.__dict__() |
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if hoymiles.HOYMILES_DEBUG_LOGGING: |
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print(f'{dt} Decoded: {data["temperature"]}', end='') |
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phase_id = 0 |
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for phase in data['phases']: |
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print(f' phase{phase_id}=voltage:{phase["voltage"]}, current:{phase["current"]}, power:{phase["power"]}, frequency:{data["frequency"]}', end='') |
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phase_id = phase_id + 1 |
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string_id = 0 |
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for string in data['strings']: |
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print(f' string{string_id}=voltage:{string["voltage"]}, current:{string["current"]}, power:{string["power"]}, total:{string["energy_total"]/1000}, daily:{string["energy_daily"]}', end='') |
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string_id = string_id + 1 |
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print() |
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if mqtt_client: |
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mqtt_send_status(mqtt_client, inverter_ser, data) |
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def mqtt_send_status(broker, interter_ser, data): |
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topic = f'ahoy/{inverter_ser}' |
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# AC Data |
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phase_id = 0 |
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for phase in data['phases']: |
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broker.publish(f'{topic}/emeter/{phase_id}/power', phase['power']) |
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broker.publish(f'{topic}/emeter/{phase_id}/voltage', phase['voltage']) |
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broker.publish(f'{topic}/emeter/{phase_id}/current', phase['current']) |
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phase_id = phase_id + 1 |
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# DC Data |
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string_id = 0 |
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for string in data['strings']: |
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broker.publish(f'{topic}/emeter-dc/{string_id}/total', string['energy_total']/1000) |
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broker.publish(f'{topic}/emeter-dc/{string_id}/power', string['power']) |
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broker.publish(f'{topic}/emeter-dc/{string_id}/voltage', string['voltage']) |
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broker.publish(f'{topic}/emeter-dc/{string_id}/current', string['current']) |
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string_id = string_id + 1 |
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# Global |
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broker.publish(f'{topic}/frequency', data['frequency']) |
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broker.publish(f'{topic}/temperature', data['temperature']) |
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def mqtt_on_command(): |
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""" |
""" |
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Keep receiving on channel 3. Every once in a while, transmit a request |
Handle commands to topic |
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to one of our inverters on channel 40. |
ahoy/{inverter_ser}/command |
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frame it and put onto command_queue |
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""" |
""" |
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raise NotImplementedError('Receiving mqtt commands is yet to be implemented') |
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global t_last_tx |
if __name__ == '__main__': |
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ahoy_config = dict(cfg.get('ahoy', {})) |
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hoymiles.print_addr(inv_ser) |
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hoymiles.print_addr(dtu_ser) |
mqtt_config = ahoy_config.get('mqtt', []) |
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if mqtt_config.get('disabled', True): |
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ctr = 1 |
mqtt_client = paho.mqtt.client.Client() |
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last_tx_message = '' |
mqtt_client.username_pw_set(mqtt_config.get('user', None), mqtt_config.get('password', None)) |
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mqtt_client.connect(mqtt_config.get('host', '127.0.0.1'), mqtt_config.get('port', 1883)) |
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rx_channels = [3,6,9,11,23,40,61,75] |
mqtt_client.loop_start() |
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rx_channel_id = 0 |
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rx_channel = rx_channels[rx_channel_id] |
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rx_channel_ack = None |
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rx_error = 0 |
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tx_channels = [40] |
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tx_channel_id = 0 |
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tx_channel = tx_channels[tx_channel_id] |
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radio.setChannel(rx_channel) |
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radio.setRetries(10, 2) |
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radio.setPALevel(RF24_PA_LOW) |
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#radio.setPALevel(RF24_PA_MAX) |
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radio.setDataRate(RF24_250KBPS) |
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radio.openReadingPipe(1,hoymiles.ser_to_esb_addr(dtu_ser)) |
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radio.openWritingPipe(hoymiles.ser_to_esb_addr(inv_ser)) |
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while True: |
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m_buf = [] |
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# Channel selection: Sweep receive start channel |
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if not rx_channel_ack: |
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rx_channel_id = ctr % len(rx_channels) |
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rx_channel = rx_channels[rx_channel_id] |
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tx_channel_id = tx_channel_id + 1 |
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if tx_channel_id >= len(tx_channels): |
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tx_channel_id = 0 |
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tx_channel = tx_channels[tx_channel_id] |
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# Transmit: Compose data |
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com = hoymiles.InverterTransaction( |
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request_time = datetime.now(), |
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inverter_ser=inv_ser, |
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request = hoymiles.compose_0x80_msg(src_ser_no=dtu_ser, dst_ser_no=inv_ser, subtype=b'\x0b') |
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) |
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print(com) |
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# Transmit: Setup radio |
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radio.stopListening() # put radio in TX mode |
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radio.setChannel(tx_channel) |
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radio.setAutoAck(True) |
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radio.setRetries(3, 15) |
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radio.setCRCLength(RF24_CRC_16) |
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radio.enableDynamicPayloads() |
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# Transmit: Send payload |
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t_tx_start = time.monotonic_ns() |
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tx_status = radio.write(com.request) |
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t_last_tx = t_tx_end = time.monotonic_ns() |
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ctr = ctr + 1 |
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# Receive: Setup radio |
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radio.setChannel(rx_channel) |
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radio.setAutoAck(False) |
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radio.setRetries(0, 0) |
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radio.enableDynamicPayloads() |
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radio.setCRCLength(RF24_CRC_16) |
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radio.startListening() |
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# Receive: Loop |
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t_end = time.monotonic_ns()+1e9 |
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while time.monotonic_ns() < t_end: |
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has_payload, pipe_number = radio.available_pipe() |
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if has_payload: |
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# Data in nRF24 buffer, read it |
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rx_error = 0 |
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rx_channel_ack = rx_channel |
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t_end = time.monotonic_ns()+2e8 |
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size = radio.getDynamicPayloadSize() |
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payload = radio.read(size) |
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fragment = hoymiles.InverterPacketFragment( |
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payload=payload, |
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ch_rx=rx_channel, ch_tx=tx_channel, |
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time_rx=datetime.now(), |
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latency=time.monotonic_ns()-t_last_tx |
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) |
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print(fragment) |
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com.frame_append(fragment) |
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else: |
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# No data in nRF rx buffer, search and wait |
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# Channel lock in (not currently used) |
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rx_error = rx_error + 1 |
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if rx_error > 0: |
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rx_channel_ack = None |
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# Channel hopping |
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if not rx_channel_ack: |
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rx_channel_id = rx_channel_id + 1 |
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if rx_channel_id >= len(rx_channels): |
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rx_channel_id = 0 |
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rx_channel = rx_channels[rx_channel_id] |
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radio.stopListening() |
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radio.setChannel(rx_channel) |
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radio.startListening() |
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time.sleep(0.005) |
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inv_ser_hm = hoymiles.ser_to_hm_addr(inv_ser) |
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try: |
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payload = com.get_payload() |
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except BufferError: |
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payload = None |
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#print("Garbage") |
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iv = None |
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if payload: |
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plen = len(payload) |
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dt = com.time_rx.strftime("%Y-%m-%d %H:%M:%S.%f") |
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iv = hoymiles.hm600_0b_response_decode(payload) |
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print(f'{dt} Decoded: {plen}', end='') |
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print(f' string1=', end='') |
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print(f' {iv.dc_voltage_0}VDC', end='') |
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print(f' {iv.dc_current_0}A', end='') |
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print(f' {iv.dc_power_0}W', end='') |
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print(f' {iv.dc_energy_total_0}Wh', end='') |
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print(f' {iv.dc_energy_daily_0}Wh/day', end='') |
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print(f' string2=', end='') |
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print(f' {iv.dc_voltage_1}VDC', end='') |
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print(f' {iv.dc_current_1}A', end='') |
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print(f' {iv.dc_power_1}W', end='') |
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print(f' {iv.dc_energy_total_1}Wh', end='') |
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print(f' {iv.dc_energy_daily_1}Wh/day', end='') |
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print(f' phase1=', end='') |
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print(f' {iv.ac_voltage_0}VAC', end='') |
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print(f' {iv.ac_current_0}A', end='') |
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print(f' {iv.ac_power_0}W', end='') |
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print(f' inverter={com.inverter_ser}', end='') |
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print(f' {iv.ac_frequency}Hz', end='') |
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print(f' {iv.temperature}°C', end='') |
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print() |
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# output to MQTT |
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if iv: |
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src = com.inverter_ser |
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# AC Data |
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mqtt_client.publish(f'ahoy/{src}/frequency', iv.ac_frequency) |
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mqtt_client.publish(f'ahoy/{src}/emeter/0/power', iv.ac_power_0) |
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mqtt_client.publish(f'ahoy/{src}/emeter/0/voltage', iv.ac_voltage_0) |
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mqtt_client.publish(f'ahoy/{src}/emeter/0/current', iv.ac_current_0) |
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mqtt_client.publish(f'ahoy/{src}/emeter/0/total', iv.dc_energy_total_0) |
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# DC Data |
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mqtt_client.publish(f'ahoy/{src}/emeter-dc/0/total', iv.dc_energy_total_0/1000) |
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mqtt_client.publish(f'ahoy/{src}/emeter-dc/0/power', iv.dc_power_0) |
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mqtt_client.publish(f'ahoy/{src}/emeter-dc/0/voltage', iv.dc_voltage_0) |
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mqtt_client.publish(f'ahoy/{src}/emeter-dc/0/current', iv.dc_current_0) |
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mqtt_client.publish(f'ahoy/{src}/emeter-dc/1/total', iv.dc_energy_total_1/1000) |
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mqtt_client.publish(f'ahoy/{src}/emeter-dc/1/power', iv.dc_power_1) |
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mqtt_client.publish(f'ahoy/{src}/emeter-dc/1/voltage', iv.dc_voltage_1) |
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mqtt_client.publish(f'ahoy/{src}/emeter-dc/1/current', iv.dc_current_1) |
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# Global |
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mqtt_client.publish(f'ahoy/{src}/temperature', iv.temperature) |
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time.sleep(5) |
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# Flush console |
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print(flush=True, end='') |
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if __name__ == "__main__": |
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if not radio.begin(): |
if not radio.begin(): |
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raise RuntimeError("radio hardware is not responding") |
raise RuntimeError('Can\'t open radio') |
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radio.setPALevel(RF24_PA_LOW) # RF24_PA_MAX is default |
#command_queue.append(hoymiles.compose_02_payload()) |
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#command_queue.append(hoymiles.compose_11_payload()) |
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# radio.printDetails(); # (smaller) function that prints raw register values |
inverters = [inverter.get('serial') for inverter in ahoy_config.get('inverters', [])] |
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# radio.printPrettyDetails(); # (larger) function that prints human readable data |
for inverter_ser in inverters: |
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command_queue[str(inverter_ser)] = [] |
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loop_interval = ahoy_config.get('interval', 1) |
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try: |
try: |
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main_loop() |
while True: |
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main_loop() |
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if loop_interval: |
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time.sleep(time.time() % loop_interval) |
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except KeyboardInterrupt: |
except KeyboardInterrupt: |
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print(" Keyboard Interrupt detected. Exiting...") |
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radio.powerDown() |
radio.powerDown() |
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sys.exit() |
sys.exit() |
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@ -0,0 +1,20 @@ |
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--- |
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ahoy: |
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interval: 0 |
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sunset: true |
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mqtt: |
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disabled: false |
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host: example-broker.local |
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port: 1883 |
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user: 'username' |
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password: 'password' |
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dtu: |
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serial: 99978563000 |
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inverters: |
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- name: 'balkon' |
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serial: 114172220003 |
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mqtt: |
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topic: 'ahoy/114172220143' # defaults to 'ahoy/{serial}' |
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@ -0,0 +1,143 @@ |
|||||
|
#!/usr/bin/python3 |
||||
|
# -*- coding: utf-8 -*- |
||||
|
import struct |
||||
|
|
||||
|
class StatusResponse: |
||||
|
e_keys = ['voltage','current','power','energy_total','energy_daily'] |
||||
|
|
||||
|
def unpack(self, fmt, base): |
||||
|
size = struct.calcsize(fmt) |
||||
|
return struct.unpack(fmt, self.response[base:base+size]) |
||||
|
|
||||
|
@property |
||||
|
def phases(self): |
||||
|
phases = [] |
||||
|
p_exists = True |
||||
|
while p_exists: |
||||
|
p_exists = False |
||||
|
phase_id = len(phases) |
||||
|
phase = {} |
||||
|
for key in self.e_keys: |
||||
|
prop = f'ac_{key}_{phase_id}' |
||||
|
if hasattr(self, prop): |
||||
|
p_exists = True |
||||
|
phase[key] = getattr(self, prop) |
||||
|
if p_exists: |
||||
|
phases.append(phase) |
||||
|
|
||||
|
return phases |
||||
|
|
||||
|
@property |
||||
|
def strings(self): |
||||
|
strings = [] |
||||
|
s_exists = True |
||||
|
while s_exists: |
||||
|
s_exists = False |
||||
|
string_id = len(strings) |
||||
|
string = {} |
||||
|
for key in self.e_keys: |
||||
|
prop = f'dc_{key}_{string_id}' |
||||
|
if hasattr(self, prop): |
||||
|
s_exists = True |
||||
|
string[key] = getattr(self, prop) |
||||
|
if s_exists: |
||||
|
strings.append(string) |
||||
|
|
||||
|
return strings |
||||
|
|
||||
|
def __dict__(self): |
||||
|
data = {} |
||||
|
data['phases'] = self.phases |
||||
|
data['strings'] = self.strings |
||||
|
data['temperature'] = self.temperature |
||||
|
data['frequency'] = self.frequency |
||||
|
return data |
||||
|
|
||||
|
class UnknownResponse: |
||||
|
@property |
||||
|
def hex_ascii(self): |
||||
|
return ' '.join([f'{b:02x}' for b in self.response]) |
||||
|
@property |
||||
|
def dump_longs(self): |
||||
|
n = len(self.response)/4 |
||||
|
vals = struct.unpack(f'>{int(n)}L', self.response) |
||||
|
return vals |
||||
|
|
||||
|
@property |
||||
|
def dump_shorts(self): |
||||
|
n = len(self.response)/2 |
||||
|
vals = struct.unpack(f'>{int(n)}H', self.response) |
||||
|
return vals |
||||
|
|
||||
|
class HM600_Decode02(UnknownResponse): |
||||
|
def __init__(self, response): |
||||
|
self.response = response |
||||
|
|
||||
|
class HM600_Decode11(UnknownResponse): |
||||
|
def __init__(self, response): |
||||
|
self.response = response |
||||
|
|
||||
|
class HM600_Decode12(UnknownResponse): |
||||
|
def __init__(self, response): |
||||
|
self.response = response |
||||
|
|
||||
|
class HM600_Decode0A(UnknownResponse): |
||||
|
def __init__(self, response): |
||||
|
self.response = response |
||||
|
|
||||
|
class HM600_Decode0B(StatusResponse): |
||||
|
def __init__(self, response): |
||||
|
self.response = response |
||||
|
|
||||
|
@property |
||||
|
def dc_voltage_0(self): |
||||
|
return self.unpack('>H', 2)[0]/10 |
||||
|
@property |
||||
|
def dc_current_0(self): |
||||
|
return self.unpack('>H', 4)[0]/100 |
||||
|
@property |
||||
|
def dc_power_0(self): |
||||
|
return self.unpack('>H', 6)[0]/10 |
||||
|
@property |
||||
|
def dc_energy_total_0(self): |
||||
|
return self.unpack('>L', 14)[0] |
||||
|
@property |
||||
|
def dc_energy_daily_0(self): |
||||
|
return self.unpack('>H', 22)[0] |
||||
|
|
||||
|
@property |
||||
|
def dc_voltage_1(self): |
||||
|
return self.unpack('>H', 8)[0]/10 |
||||
|
@property |
||||
|
def dc_current_1(self): |
||||
|
return self.unpack('>H', 10)[0]/100 |
||||
|
@property |
||||
|
def dc_power_1(self): |
||||
|
return self.unpack('>H', 12)[0]/10 |
||||
|
@property |
||||
|
def dc_energy_total_1(self): |
||||
|
return self.unpack('>L', 18)[0] |
||||
|
@property |
||||
|
def dc_energy_daily_1(self): |
||||
|
return self.unpack('>H', 24)[0] |
||||
|
|
||||
|
@property |
||||
|
def ac_voltage_0(self): |
||||
|
return self.unpack('>H', 26)[0]/10 |
||||
|
@property |
||||
|
def ac_current_0(self): |
||||
|
return self.unpack('>H', 34)[0]/10 |
||||
|
@property |
||||
|
def ac_power_0(self): |
||||
|
return self.unpack('>H', 30)[0]/10 |
||||
|
@property |
||||
|
def frequency(self): |
||||
|
return self.unpack('>H', 28)[0]/100 |
||||
|
@property |
||||
|
def temperature(self): |
||||
|
return self.unpack('>H', 38)[0]/10 |
||||
|
|
||||
|
class HM600_Decode0C(HM600_Decode0B): |
||||
|
def __init__(self, response): |
||||
|
self.response = response |
||||
|
|
||||
@ -1,15 +0,0 @@ |
|||||
#!/usr/bin/env python3 |
|
||||
# -*- coding: utf-8 -*- |
|
||||
# TBD |
|
||||
|
|
||||
class ESBFrameFactory: |
|
||||
def __init__(self, payload): |
|
||||
self.payload = payload |
|
||||
|
|
||||
class ESBTransactionFactory: |
|
||||
""" |
|
||||
Put a payload into ESB packets for transmission |
|
||||
""" |
|
||||
def __init__(self, src, dst, **params): |
|
||||
self.src = src |
|
||||
self.dst = dst |
|
||||
Loading…
Reference in new issue