Hi,
the guys over at CML Leusden, who have build airrohr firmware for SEN55, now have support for the Tera NextPM Sensor V1.040 and higher implemented in firmware version FWL-2025-01-P5.
The Tera Sensor features build-in heating, so it should deliver more accurate readings in high humidity like fog and has embedded sensor for temp and humidity, so no need for extra BME280 sensor. You can buy direct from RS Online (Cable: eBay)
I was not able to make the sensor work with sensor.community firmware, so I asked them if they could do anything about it.
My sensor now works for about 2 weeks without any hickups with this version.
The Tera sensor comes in different versions with different pinouts, so please take care how to connect
Pin 1 (GND) -> GND
Pin 2 (5V) -> VU
Pin 3 (TX)(output) -> (RX) Pin D1 (GPIO5)
Pin 4 (RX)(input) -> (TX) Pin D2 (GPIO4)
Pin 5 (CS or DE/RE) (unconnected)(high impedance)
Pin 6 (GND) -> GND
Thanks to the sensor-software-Leusden Guys for the great work!
And it worked… I had a sensor with a NextPM working for 3 years.