Pinout

J1 - Tip Connector

1. ADC7 (future use)
2. Tip Tempterature Sensor
3. GND
4. GND
5. 12V switched power
6. 12V switched power

J2 - UART

UART Port to see Debug messages

(names are from microcontrollers point of view)

1. RX
2. TX
3. GND (introduced in HW_VERSION 2)

J3 - Tip detection

1. out
2. 12V

J4 - Future use

1. PD5
2. PD6
3. PD7

J5 - Power

1. 12V
2. 12V
3. GND
4. GND

ISP-HEADER

1. MISO
2. VCC
3. SCK
4. MOSI
5. RST
6. GND