PR-3000-FSJT-N01
- green - 485-A
- blue - 485-B
- black - Gnd
- brown - +Vcc (10-30V)
4800 8N1 CRC
120 Ohm line terminal resistor
addr: 1
- https://devices.esphome.io/devices/Renke-RS-FSJT-N01-Wind-Speed
- https://devices.esphome.io/devices/Renke-RS-FXJT-N01-Wind-Direction
Sample:
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send (addr, func, reg, num, crc): 0x01 0x03 0x00 0x00 0x00 0x01 0x84 0x0A
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recv (addr, func, len, bytes, crc): 0x01 0x03 0x02 0x00 0x56 0x38 0x7A
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value: 0x00 0x56 -> 86 -> 8.6 m/s
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The device modbus address is stored in register 2000 (0x07D0) - [1-247]
-
The device baud rate is configured in register 2001 using an ID:
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? Baud rate ID
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? 2400 0
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? 4800 1
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? 9600 2
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? 19200 3
RHUMBS = [0, 45, 90, 135, 180, 225, 270, 315]
mbpoll -m rtu -b 4800 -d 8 -P none -s 1 -a 1 -r 1 -c 1 -l 1000 -o 1 /dev/tty.usbserial-1340- https://kotyara12.ru/iot/esp32_rs485_modbus/
- https://minimalmodbus.readthedocs.io/en/stable/
- https://pymodbus.readthedocs.io/en/latest/ ???
- https://lastminuteengineers.com/esp32-pinout-reference/
- https://lastminuteengineers.com/esp32-wroom-32-pinout-reference/
- https://github.com/espressif/esptool
- https://docs.micropython.org/en/latest/reference/mpremote.html
pip install esptool mpremote- https://pypi.org/project/adafruit-ampy/
- https://github.com/dhylands/rshell
- https://github.com/wendlers/mpfshell
Copy files from repo to mrequests folder:
Copy config.py to .config.py and set correct variable values.
SUBMIT_USER = ""
SUBMIT_PASS = ""
WIFI_SSID = ""
WIFI_PASS = ""Autostart at boot (set/remove)
with open("main.py",'w') as f: f.write("import app; app.main()")
import os; os.remove('main.py')apt install python3-serial
read_register(addr=1,2000) 01030200017984
1
read_register(addr=1,2001) 01030200017984
1
read_register(addr=1,2002) 0103020000b844
0
read_register(addr=1,2003) 01030266ed53a9
26349
read_register(addr=1,2004) 0103024d5e0cec
19806