Tomu [Discontinued] _ARD_SHIELD_GPSGSM ROI from elimination of printing

ROI from elimination of printing costs

NPN Transistor module x1

If you want to sample a higher input voltage you can use our ADC Pi Input Voltage Calculator to find the additional resistors and calculation values needed

With this cable

The battery includes protection circuitry to protect the battery from over charging or completely discharging

Tomu [Discontinued] _ARD_SHIELD_GPSGSM ROI from elimination of printingOnly 13mm long, Tomu really puts the micro in microprocessor. It's fully open source development board with the silabs Gecko EFM32HG309 processor, on a little board that can slot right into your computer or laptop USB A port (USB C users will need an adapter). The board feature two tiny LEDs, and two capacitive touch pads, as well as a native USB bootloader. While it was originally designed for 2 factor authentication, it's great for very tiny USB