My sensor is 0-5v.
Actually when I check with my multimeter I see 0.52v dipped in water and 3.08v out of water.
But when I plug the Analog in to Analog in 1-8, I do not see any changes in voltage in AI1-AI8.
I use the GND of analog and power from 3.3v.
Why?
My troubleshooting:
I tried a voltage/current generator (https://a.aliexpress.com/_EwgS75o) with external power source and I get voltage measurement on my board (868-AIO), so board is working. Also tried DI and works but that doesn’t matter.
I rechecked my soil sensor output with multimeter (when NOT connected with 868-AIO) and sensor output still works.
I tried to take sensor’s GND both from main GND of board and AI GND. Same result. No input from sensor into board.
I connected the DO of sensor to board and board reacts (change in voltage) to signal. Only of course 2 voltages not an analog out.
I messed around with sensor's potentiometer, still nothing.
I tried external power source to 4volts still the same. No input in any channel I try in the board, normal input on multimeter. Inputs of board working.
My only idea is if I can “multiply” reading of input but does not make any sense.
Any ideas?
Actually when I check with my multimeter I see 0.52v dipped in water and 3.08v out of water.
But when I plug the Analog in to Analog in 1-8, I do not see any changes in voltage in AI1-AI8.
I use the GND of analog and power from 3.3v.
Why?
My troubleshooting:
I tried a voltage/current generator (https://a.aliexpress.com/_EwgS75o) with external power source and I get voltage measurement on my board (868-AIO), so board is working. Also tried DI and works but that doesn’t matter.
I rechecked my soil sensor output with multimeter (when NOT connected with 868-AIO) and sensor output still works.
I tried to take sensor’s GND both from main GND of board and AI GND. Same result. No input from sensor into board.
I connected the DO of sensor to board and board reacts (change in voltage) to signal. Only of course 2 voltages not an analog out.
I messed around with sensor's potentiometer, still nothing.
I tried external power source to 4volts still the same. No input in any channel I try in the board, normal input on multimeter. Inputs of board working.
My only idea is if I can “multiply” reading of input but does not make any sense.
Any ideas?