The world's first ARM core aerospace grade chip, SAMRH71F20-EK evaluation kit (schematic, etc.)

The Microchip SAMRH71F20-EK Evaluation Kit is a hardware platform for evaluating the SAMRH71F20 microcontroller.
Powered by Microchip's MPLAB® HARMONY integrated development platform and other commercially available development environments, the evaluation kit provides easy access to the Microchip RadHard SAMRH71F20 microcontroller and its aerospace-specific feature set and shows how to integrate the device into a custom design.

Schematic PCB

Reference design for driving LED based on SMART ATSAMR21 microcontroller

The ATSAMR21-LED-DRIVER is a reference platform that uses the SMART ATSAMR21 microcontroller (MCU) to drive LEDs in a constant current DC-DC step-down topology. The ATSAMR21 is an IEEE 802.15.4 compliant SOC that incorporates an ARM® Cortex® M0+ based 32-bit MCU and a 2.4GHz RF transceiver.

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Schematic PCB

Charging and discharging, backup battery reference design based on AVRBC100 two cells/battery packs

A reference design that demonstrates charging and discharging of two batteries/battery packs with a programmable charge voltage up to 40V. It also demonstrates how to design a battery back-up, also known as an uninteruptable power supply, where the charged batteries are used to power the system if the external voltage supply is lost.

Schematic PCB