The HSSV ATSAMR21 Breakout is an open source, RIOT OS-compatible board designed to accelerate the deployment of IEEE 802.15.4-based networks on the 2.4GHz band: https://t.co/6WXG3LpAlx pic.twitter.com/hN8AxZHO2K

— Microchip Makes (@MicrochipMakes) August 24, 2020

OSHWA has announced the first certified open source hardware from El Salvador:

Hackerspace San Salvador ATSAMR21 Breakout

The breakout board uses the module ATSAMR21G18A-MR210UA. This module combines the ATSAMR21G18, a 4Mb Flash memory AT45DB041E and a crypto-authentication chip ATECC508A.

This breakout board also includes a power-path/LiPo charge management unit MCP73871 and a very low dropout 3.3V regulator LD3985M33R.

• 32 bits ARM Cortex M0+ microcontroller
• 2.4GHz low-power transceiver for IEEE 802.15.4 + ZigBee
• 256KB Flash
• Maximum operating frecuency of 48MHz
• Integrated temperature sensor
• 4Mb external Flash memory
• Cryto chip with: Secure key storage, high-speed public-key algorithms, elliptic curves support (NIST P256), SHA-256, unique serial number, high-quality RNG.
• Pre-set MAC address

Design files for this board are available on GitHub.

🇸🇻First certified open source hardware from El Salvador 🇸🇻! The @hackerspacesv HSSV ATSAMR21 Breakout (SV000001) https://t.co/4hUwj2mb5s

Have OSHW to certify? It's free! https://t.co/lUG4vOuAfW

Want to see other certified OSHW? Check out the full list! https://t.co/JdFNxkDrvZ

— Open Source Hardware Association (@ohsummit) August 25, 2020