Can't put my SEN0466 sensor into the passive mode vie UART
Andreas.Winter 2023-03-23 07:07:57 442 Views2 Replies Hi,
I am trying to get my sensor (SEN0466) into the passive mode by sending 0xff 0x01 0x78 0x04 0x00 0x00 0x00 0x00 0x83 via UART (9600 baud 8N1). Unfortuately I get no response from the sensor and the default active mode goes on.
Can someone help me?
I use an ATtiny441 (see my attached code snipped)
Code_Snipped_Attiny441.ZIP I tried the mode change with the terminal software HTerm. It worked well. But I don't understand why I can not change the mode by using my Attiny. The modify code 0xff 0x01 0x04… is sending to the sensor by the Attiny correctly but without success.
Andreas.Winter Could you please try connecting the Gravity: Factory Calibrated Electrochemical CO Sensor to your PC via TTL to USB converter?
You can try setting the software to send commands as shown above and see if you can enter passive mode.
If it doesn't work, that could be an hardware issue.
NeloKin 
