(MOSI/DI/SDA/!OC1A/PCINT8) PB0 MOSI,SW2    SENSE1+ PA0 (ADC0/DI/SDA/PCINT0)
          (MISO/DO/OC1A/PCINT9) PB1 MISO,PWM1  SENSE12- PA1 (ADC1/DO/PCINT1)
   (SCK/USCK/SCL/!OC1B/PCINT10) PB2 SCK,LED2    SENSE2+ PA2 (ADC2/INT1/USCK/SCL/PCINT2)
                 (OC1B/PCINT11) PB3 PWM2        SENSE3- PA3 (AREF/PCINT3)
                                VCC                     AGND
                                GND                     AVCC
(ADC7/!OC1D/CLKI/XTAL1/PCINT12) PB4 LED1        SENSE3+ PA4 (ADC3/ICP0/PCINT4)
 (ADC8/OC1D/CLKO/XTAL2/PCINT13) PB5 PWM3        AMBIENT PA5 (ADC4/AIN2/PCINT5)
         (ADC9/INT0/T0/PCINT14) PB6 SW1      VBAT_SENSE PA6 (ADC5/AIN0/PCINT6)
          (ADC10/RESET/PCINT15) PB7 RST      VB_SEN_ENA PA7 (ADC6/AIN1/PCINT7)


PWM1 - rear spotlight
PWM2 - read wide light
PWM3 - front light
SENSE1
SENSE2
SENSE3
Ambient sense
Analog-on
SW1 - on/off button
SW2 - temporary light boost
LED1
LED2