topaLE
/
ahoy
mirror of https://github.com/lumapu/ahoy.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
50 Commits
6 Branches
14 Tags
44 MiB
 
 
 
 
 
 
Tree: 42bd240083
Branches Tags
${ item.name }
Create tag ${ searchTerm }
Create branch ${ searchTerm }
from '42bd240083'
${ noResults }
ahoy/tools/rpi
Thomas Basler eb2608b77d
Fixed syntax errors 		3 years ago
..
discover Update README.md 3 years ago
example-logs PoC Hoymiles package full payload decode WIP 3 years ago
hoymiles Added parser for HM-1500 3 years ago
.gitignore PoC Hoymiles package full payload decode WIP 3 years ago
README.md Ahoy Python Rewrite 3 years ago
ahoy.py Fixed syntax errors 3 years ago
ahoy.yml.example Change default mqtt prefix to hoymiles/serial 3 years ago
requirements.txt Update python requirements add crcmod 3 years ago
test.py PoC Hoymiles package full payload decode WIP 3 years ago

README.md

Communicating with Hoymiles Micro-Inverters using Python on RaspberryPi

The tools in this folder (and subfolders) provide the ability to communicate with Hoymiles micro-inverters.

They require the hardware setup described below.

The tools are still quite rudimentary, as the communication behaviour is not yet fully understood.

This is part of an ongoing group effort, and the knowledge gained so far is the result of a crowd effort that started at [1].

Thanks go to all who contributed, and are continuing to contribute, by providing their time, equipment, and ingenuity!

Required Hardware Setup

ahoy.py has been successfully tested with the following setup

  • RaspberryPi Model 2B (any model should work)
  • NRF24L01+ Radio Module connected as described, e.g., in [2] (Instructions at [3] should work identically, but [2] has more pretty pictures.)
  • TMRh20's 'Optimized High Speed nRF24L01+ Driver' [3], installed as per the instructions given in [4]
    • Python Library Wrapper, as per [5]

Example Run

The following command will run the communication tool, which will try to 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

Analysing the Logs

Use basic command line tools to get an idea what you recorded. For example:

$ cat log2.log
[...]
2022-05-02 16:41:16.044179 Transmit | 15 72 22 01 43 78 56 34 12 80 0b 00 62 3c 8e cf 00 00 00 05 00 00 00 00 35 a3 08
2022-05-02 17:01:41.844361 Received 27 bytes on channel 3: 95 72 22 01 43 72 22 01 43 01 00 01 01 44 00 4e 00 fe 01 46 00 4f 01 02 00 00 6b
2022-05-02 17:01:41.886796 Received 27 bytes on channel 75: 95 72 22 01 43 72 22 01 43 02 8f 82 00 00 86 7a 05 fe 06 0b 08 fc 13 8a 01 e9 15
2022-05-02 17:01:41.934667 Received 23 bytes on channel 75: 95 72 22 01 43 72 22 01 43 83 00 00 00 15 03 e8 00 df 03 83 d5 f3 91
2022-05-02 17:01:41.934667 Decoded: 44 string1= 32.4VDC 0.78A 25.4W 36738Wh 1534Wh/day string2= 32.6VDC 0.79A 25.8W 34426Wh 1547Wh/day phase1= 230.0VAC 2.1A 48.9W inverter=114171230143 50.02Hz 22.3°C
[...]

A brief example log is supplied in the example-logs folder.

Configuration

Local settings are read from ahoy.yml
An example is provided as ahoy.yml.example

Todo

  • Ability to talk to multiple inverters
  • MQTT gateway
  • understand channel hopping
  • configurable polling interval
  • commands
  • picture of setup!
  • python module
  • ...

References