Designed and open-sourced by Timmit99, the SKR Mini E3 v2 thermistor expander allows you to connect two thermistors to the TFT input of the board.
Simple solution to connect a chamber thermistor that it’s also available at our store for sale.
Both thermistors use a 4.7K pullup (Klipper’s default pullup value) as well.
Specially designed to go along with the SKR display adaptor since EXP1 and SPI header are already being used.
- Dupont female cable 10cm to connect to the 3.3v pin
- 2x JST-XH 2 pin conector
- 4x JST-XH terminal crimps
Recommend for voron v0.1 or voron switchwire.
This item is fully soldered and in ready condition to be used.
Plug the board into the TFT header with the overhang towards the center of the board (Blue box below) and install a jumper wire between the single pin on the expansion board and the 3.3V pin of the SWD header on the control board (purple circle).
Klipper config example:
[temperature_sensor chamber_thermistor] sensor_type: Generic 3950 sensor_pin: PA2 min_temp: 0 max_temp: 100 pullup_resistor: 1000 [temperature_sensor eletronics_bay_thermistor] sensor_type: Generic 3950 sensor_pin: PA3 min_temp: 0 max_temp: 100 pullup_resistor: 1000
Author and info: https://github.com/VoronDesign/Voron-Hardware/tree/master/SKR-Mini_TFT_Thermistor_Board