Schematics

LED COL1 / ADC
PAD 0 / ADC
LED COL2 / ADC
BUTTON A
LED COL9
LED COL8
PAD1 / ADC
GPIO
LED COL7
LED COL3 / ADC
BUTTON B
PAD2 / ADC
SPI1 MOSI
I2C1 SCL
GND
I2C1 SDA
3.3V
SPI1 MISO
SPI1 SCK
GPIO
GPIO
P1*2
P2*2
P1*2
P2*2
P1*2
P2*2
P1*2
P2*2
P1*2
P2*2
P1*2
P2*2
P1*2
P2*2
P1*2
P2*2
3.3V
GND
P0
P1
P2
P3
P4
P5
P6
P7
P8
P9
P10
P11
P12
P13
P14
P15
P16
P19
P20
1
2
3
4
Released under the Creative Commons
Attribution Share-Alike 4.0 License
https://creativecommons.org/licenses/by-sa/4.0/
Design by:
controller:bit
controller:bit