Pinout diagram
Power
GND
Serial Pin
External IO Pin
Control
External IO Header
2 4 6 8 10
1 3 5 7 9
P0
P1
P2
P3
P4
P8
P9
P10
P11
Reset
UART_RX G2
UART_TX G1
RGB_LED G23
PWR_EN G24
SD_CMD G11
G12
G13
G14
SD_DAT G15
EXT_IO1 G16
EXT_IO2 G17
EXT_IO3 G22
G28
5V
GND
3V3
G10 SD_CLK
P23
G9
P22
SDA
Accelerometer
(LIS2HH12),
P21
G8
SCL
Ambient Light
G7
(LTR-329ALS-01),
G6
Barometric (MPL3115A2),
G30
Humidty and Temperature
G31
(Si7006-A20)
G3
G0
G4
P14
Button
G5
P13
Accelerometer Interrupt
1
2
3
4
5
6
7
8
9
10
GND
PWR_EN
3V3_Sensors
3V3_Pymodule
EXT_IO0 (RGB_LED)
EXT_IO1
EXT_IO2
EXT_IO3
EXT_IO4
EXT_IO5
Correct Board Mounting
RGB LED must be at the top of the
board, above the USB connector
* Interrupts EXT_IO0, EXT_IO4 &
EXT_IO5 are connected to a PIC and
are accessible via Pycom Libraries
USB
JST for LiPo battery (450mA)
(BQ24040)
Charge indicator LED
USB to serial
converter
RGB
LED
Accelerometer (LIS2HH12)
Button
Ambient light sensor
(LTR-329ALS-01)
Micro SD card
reader
Barometric
pressure sensor
and altimeter
(MPL3115A2)
Temperature and humidity
sensor (Si7006-A20)
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