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ahoy
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Integrate ahoy.py into hoymiles module 

Finally get rid of ahoy.py and integrate functionallity into the module
itself. Prepares for pipelines, adding pip installer or debian packaging.

Improve configuration adds commandline switches for:

  * `--verbose, enabling verbose logging
  * `--log-transactions`, outbut all rf raw data

Improve loop, now runs all queued commands per inverter within interval.
Skip sleep when interval is allready due.
pull/27/head
Jan-Jonas Sämann 3 years ago
parent
6627eeb931
commit
d27f0c1148
4 changed files with 132 additions and 78 deletions
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  1. 21
      tools/rpi/README.md
  2. 6
      tools/rpi/ahoy.yml.example
  3. 4
      tools/rpi/hoymiles/__init__.py
  4. 179
      tools/rpi/hoymiles/__main__.py

21
tools/rpi/README.md
View File

@ -40,8 +40,27 @@ contact the inverter every second on channel 40, and listen for replies.
Whenever it sees a reply, it will decoded and logged to the given log file.
$ sudo python3 ahoy.py --config /home/dtu/ahoy.yml | tee -a log2.log
$ sudo python3 -um hoymiles --log-transactions --verbose --config /home/dtu/ahoy.yml | tee -a log2.log
Python parameters
- `-u` enables python's unbuffered mode
- `-m hoymiles` tells python to load module 'hoymiles' as main app
The application describes itself
```
python -m hoymiles --help
usage: hoymiles [-h] -c [CONFIG_FILE] [--log-transactions] [--verbose]
Ahoy - Hoymiles solar inverter gateway
optional arguments:
-h, --help show this help message and exit
-c [CONFIG_FILE], --config-file [CONFIG_FILE]
configuration file
--log-transactions Enable transaction logging output
--verbose Enable debug output
```
Inject payloads via MQTT

6
tools/rpi/ahoy.yml.example
View File

@ -3,6 +3,12 @@
ahoy:
interval: 0
sunset: true
# List of available NRF24 transceivers
nrf:
- ce_pin: 22
cs_pin: 0
mqtt:
disabled: false
host: example-broker.local

4
tools/rpi/hoymiles/__init__.py
View File

@ -11,8 +11,8 @@ f_crc_m = crcmod.predefined.mkPredefinedCrcFun('modbus')
f_crc8 = crcmod.mkCrcFun(0x101, initCrc=0, xorOut=0)
HOYMILES_TRANSACTION_LOGGING=True
HOYMILES_DEBUG_LOGGING=True
HOYMILES_TRANSACTION_LOGGING=False
HOYMILES_DEBUG_LOGGING=False
def ser_to_hm_addr(s):
"""

179
tools/rpi/ahoy.py → tools/rpi/hoymiles/__main__.py
View File

@ -13,28 +13,6 @@ import paho.mqtt.client
import yaml
from yaml.loader import SafeLoader
parser = argparse.ArgumentParser(description='Ahoy - Hoymiles solar inverter gateway')
parser.add_argument("-c", "--config-file", nargs="?",
help="configuration file")
global_config = parser.parse_args()
if global_config.config_file:
with open(global_config.config_file) as yf:
cfg = yaml.load(yf, Loader=SafeLoader)
else:
with open(global_config.config_file) as yf:
cfg = yaml.load('ahoy.yml', Loader=SafeLoader)
radio = RF24(22, 0, 1000000)
hmradio = hoymiles.HoymilesNRF(device=radio)
mqtt_client = None
command_queue = {}
mqtt_command_topic_subs = []
hoymiles.HOYMILES_TRANSACTION_LOGGING=True
hoymiles.HOYMILES_DEBUG_LOGGING=True
def main_loop():
inverters = [
inverter for inverter in ahoy_config.get('inverters', [])
@ -45,62 +23,66 @@ def main_loop():
print(f'Poll inverter {inverter["serial"]}')
poll_inverter(inverter)
def poll_inverter(inverter):
def poll_inverter(inverter, retries=4):
inverter_ser = inverter.get('serial')
dtu_ser = ahoy_config.get('dtu', {}).get('serial')
if len(command_queue[str(inverter_ser)]) > 0:
# Queue at least status data request
command_queue[str(inverter_ser)].append(hoymiles.compose_set_time_payload())
# Putt all queued commands for current inverter on air
while len(command_queue[str(inverter_ser)]) > 0:
payload = command_queue[str(inverter_ser)].pop(0)
else:
payload = hoymiles.compose_set_time_payload()
payload_ttl = 4
while payload_ttl > 0:
payload_ttl = payload_ttl - 1
com = hoymiles.InverterTransaction(
radio=hmradio,
dtu_ser=dtu_ser,
inverter_ser=inverter_ser,
request=next(hoymiles.compose_esb_packet(
payload,
seq=b'\x80',
src=dtu_ser,
dst=inverter_ser
)))
response = None
while com.rxtx():
try:
response = com.get_payload()
payload_ttl = 0
except Exception as e:
print(f'Error while retrieving data: {e}')
pass
if response:
dt = datetime.now()
print(f'{dt} Payload: ' + hoymiles.hexify_payload(response))
decoder = hoymiles.ResponseDecoder(response,
request=com.request,
inverter_ser=inverter_ser
)
result = decoder.decode()
if isinstance(result, hoymiles.decoders.StatusResponse):
data = result.__dict__()
if hoymiles.HOYMILES_DEBUG_LOGGING:
print(f'{dt} Decoded: {data["temperature"]}', end='')
phase_id = 0
for phase in data['phases']:
print(f' phase{phase_id}=voltage:{phase["voltage"]}, current:{phase["current"]}, power:{phase["power"]}, frequency:{data["frequency"]}', end='')
phase_id = phase_id + 1
string_id = 0
for string in data['strings']:
print(f' string{string_id}=voltage:{string["voltage"]}, current:{string["current"]}, power:{string["power"]}, total:{string["energy_total"]/1000}, daily:{string["energy_daily"]}', end='')
string_id = string_id + 1
print()
if mqtt_client:
mqtt_send_status(mqtt_client, inverter_ser, data,
topic=inverter.get('mqtt', {}).get('topic', None))
# Send payload {ttl}-times until we get at least one reponse
payload_ttl = retries
while payload_ttl > 0:
payload_ttl = payload_ttl - 1
com = hoymiles.InverterTransaction(
radio=hmradio,
dtu_ser=dtu_ser,
inverter_ser=inverter_ser,
request=next(hoymiles.compose_esb_packet(
payload,
seq=b'\x80',
src=dtu_ser,
dst=inverter_ser
)))
response = None
while com.rxtx():
try:
response = com.get_payload()
payload_ttl = 0
except Exception as e:
print(f'Error while retrieving data: {e}')
pass
# Handle the response data if any
if response:
dt = datetime.now()
print(f'{dt} Payload: ' + hoymiles.hexify_payload(response))
decoder = hoymiles.ResponseDecoder(response,
request=com.request,
inverter_ser=inverter_ser
)
result = decoder.decode()
if isinstance(result, hoymiles.decoders.StatusResponse):
data = result.__dict__()
if hoymiles.HOYMILES_DEBUG_LOGGING:
print(f'{dt} Decoded: {data["temperature"]}', end='')
phase_id = 0
for phase in data['phases']:
print(f' phase{phase_id}=voltage:{phase["voltage"]}, current:{phase["current"]}, power:{phase["power"]}, frequency:{data["frequency"]}', end='')
phase_id = phase_id + 1
string_id = 0
for string in data['strings']:
print(f' string{string_id}=voltage:{string["voltage"]}, current:{string["current"]}, power:{string["power"]}, total:{string["energy_total"]/1000}, daily:{string["energy_daily"]}', end='')
string_id = string_id + 1
print()
if mqtt_client:
mqtt_send_status(mqtt_client, inverter_ser, data,
topic=inverter.get('mqtt', {}).get('topic', None))
def mqtt_send_status(broker, inverter_ser, data, topic=None):
""" Publish StatusResponse object """
@ -170,8 +152,51 @@ def mqtt_on_command(client, userdata, message):
hoymiles.frame_payload(payload[1:]))
if __name__ == '__main__':
parser = argparse.ArgumentParser(description='Ahoy - Hoymiles solar inverter gateway', prog="hoymiles")
parser.add_argument("-c", "--config-file", nargs="?", required=True,
help="configuration file")
parser.add_argument("--log-transactions", action="store_true", default=False,
help="Enable transaction logging output")
parser.add_argument("--verbose", action="store_true", default=False,
help="Enable debug output")
global_config = parser.parse_args()
# Load ahoy.yml config file
try:
if isinstance(global_config.config_file, str) == True:
with open(global_config.config_file, 'r') as yf:
cfg = yaml.load(yf, Loader=SafeLoader)
else:
with open('ahoy.yml', 'r') as yf:
cfg = yaml.load(yf, Loader=SafeLoader)
except FileNotFoundError:
print("Could not load config file. Try --help")
sys.exit(2)
except yaml.YAMLError as ye:
print('Failed to load config frile {global_config.config_file}: {ye}')
sys.exit(1)
ahoy_config = dict(cfg.get('ahoy', {}))
# Prepare for multiple transceivers, makes them configurable (currently
# only one supported)
for radio_config in ahoy_config.get('nrf', [{}]):
radio = RF24(
radio_config.get('ce_pin', 22),
radio_config.get('cs_pin', 0),
radio_config.get('spispeed', 1000000))
hmradio = hoymiles.HoymilesNRF(device=radio)
mqtt_client = None
command_queue = {}
mqtt_command_topic_subs = []
if global_config.log_transactions:
hoymiles.HOYMILES_TRANSACTION_LOGGING=True
if global_config.verbose:
hoymiles.HOYMILES_DEBUG_LOGGING=True
mqtt_config = ahoy_config.get('mqtt', [])
if not mqtt_config.get('disabled', False):
mqtt_client = paho.mqtt.client.Client()
@ -202,9 +227,13 @@ if __name__ == '__main__':
loop_interval = ahoy_config.get('interval', 1)
try:
while True:
t_loop_start = time.time()
main_loop()
if loop_interval:
print('', end='', flush=True)
if loop_interval > 0 and (time.time() - t_loop_start) < loop_interval:
time.sleep(time.time() % loop_interval)
except KeyboardInterrupt:
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