Mantis.brd

by falkenad.
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2 layer board of 0.71x1.41 inches (17.91x35.71 mm).
Shared on October 24th, 2016 00:19.

An STM32L4 microcontroller in a Teensy form factor. This board was designed as a 2-layer PCB with all components on the top side as a more cost-effective, very low power Cortex M4 alternative. Design inspired by Kris Winer’s Dragonfly and Paul Stoffregen’s Teensy.

Includes both low-speed and high-speed oscillators, a supercapacitor RTC backup, an extremely low Iq LDO regulator, and flash memory. The supercapacitor’s VBAT pin is broken out such that an external coin cell or supercapacitor may be used.

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