Spi pins

[kevin]

Hi Christian,

Vacation and other stuff stopped me of further investigation.

The sensor heats and operates correctly on a 14p7 controller.
Swapped sensor out just in case-off, no change.

Now I cant seem to output anymore serial debug neither!
Would you mind sharing my tested sketch on your bord?

Thx!

[Christian_Bylund]

Kevin I think your heater circuit is inverted. Please share a picture of your board and the components you are using.

[kevin]

Its a custom board with atmega328 and wideband in one small package.

The heater is not inversed double checked.

Grtz,
K

[Christian_Bylund]

It is hard to troubleshoot your custom design. I took the liberty of uploading the picture for you. Without SPI it is impossible to get any errors from the CJ125 to work with. Do you have any schematic to share? I can't see any main DC capacitor and the connections around D1 does not look right to me assuming it is the DC input.