Main components

Download full BOM
Part NumberDescription
STM32U031K8UxSTMicroelectronics Arm Cortex-M0+ MCU, 64KB flash, 12KB RAM, 27 GPIO, UFQFPN32
TPSM365R6V3RDNR3V3 fixed voltage 600mA converter, with mode/sync input.
LM27761low-noise regulated switched-capacitor voltage inverter with 2.7V-5.5V input to -1.5 to -5V Output Voltage, WSON-8
FXLS8971CF3-Axis Low-g Accelerometer FXLS8971CF is available in a 3 mm x 3 mm x 1.25 mm 12-pin QFN package with 0.65 mm pitch and wettable flanks

monitor schematic

Open in new tab

monitor board layout

monitor PCB render

Top PCB
Bottom PCB