@rieschard
Here are some pictures of V2
230V or 24 VDC (or 5 VDC through usb) power supply
esp32S3-T7 (lilygo)
modbus RTU (XY-017)
1 relais
2x i2C for sensors (m5 stack)
DHT22 or ds18b20
Still need litlle bit testing to do, received it yesterday
And still make a 3d printed housing design, probably tommorrow or the day after
Price will be arround 35 euro (incl transportation in netherlands), but will dependant of the power supply (230 V option adds 18 euro, but not needed for brink)
And V1
modbus RTU (XY-017)
esp32 (MH-ET-LIVE)
usb 5V
price around 25 euro (incl transportion cost inside netherlands)
With the help of Egidijus, we have translated the files to english and dutch on my github (link in the post above)
Also code suitable for esp32 and esp8266