How to connect a PT100 or Type 'K' Thermocouple to a Fly-CDYv2
Overview
Some Fly-CDYv2 boards have support for PT100 and type ‘K’ thermocouples.
If your board has the chip shown below in red, you have PT100 support.
![Fly-CDYv2 PT100 Chip](images/fly_e3_pro_pt100.png)
If your board has the chip shown below in red, you have ‘K’ type thermocouple support.
![Fly-CDYv2 K Chip](images/fly_e3_pro_k.png)
Board.txt modifications
The following lines should be added to the board.txt file.
heat.spiTempSensorChannel = 0
heat.spiTempSensorCSPins = {PE_7, PE_8}
Config.g changes
PT100
To use the PT100 on your hotend, use the following code in config.g If you are in a country where the mains frequency is 50Hz, change the F60 to F50 (if you don’t know, look here)
M308 S1 P"PE_7" Y"rtd-max31865" F60 R430
Warning: Make sure you include the R430 as the Fly-CDYv2 uses a different reference resistor than expected
Type ‘K’ Thermocouple
To use the Type ‘K’ Thermocouple on your hotend, use the following code in config.g
M308 S1 P"PE_8" Y"thermocouple-max31855"