UTM Pin UTM Wire Farmduino Pin Use
A red +5V Soil sensor power
B yellow GND (0V) Ground
C green D63 - Digital-In Tool verification
D black D59 (A5) - Analog-In Soil sensor readings
E white BDC2 (GND or 24V via DRV8876) Rotary tool motor
F brown — —
G blue — —
H grey BDC1 (GND or 24V via DRV8876) Rotary tool motor
I orange — I2C SCL
J purple — I2C SDA
K pink — —
L cyan
(shunted to shield with dark gray heatshrink)		 PE Protected Earth ground