Environment Sensor MYRA SiP Baseboard

Copyright (c) 2024 Antmicro

Overview

This repository contains open hardware design files for Antmicro's Environment Sensor Board variant which includes the MYRA SiP as well as temperature, pressure and humidity sensors.

The design files were prepared in KiCad 7.

Key features

• Environment sensor SiP (with STM32G491REI6 MCU, 128kB FRAM, FTDI FT231XQ USB to UART converter)
• 50 mm x 26.5 mm PCB size
• USB-C Connector for data and power
• SHT45 temperature + humidity sensor:
  • typical relative humidity accuracy ±1% RH
  • operating relative humidity range 0-100% RH
  • typical temperature accuracy ±0.1°C
  • operating temperature range -40-125°C
• BME280 temperature + humidity + pressure sensor:
  • typical relative humidity accuracy ±3% RH
  • operating relative humidity range 10-100% RH
  • typical temperature accuracy ±1°C
  • operating temperature range -40-85°C
  • typical pressure accuracy ±1 hPa
  • operating pressure range 300-1100 hPa
• QWIIC Connectors
• RTC battery backup

Repository structure

The main repository directory contains KiCad PCB project files, a LICENSE, and a README. The remaining files are stored in the following directories:

• doc - contains board schematic
• assets - contains visual assets for showcasing this design on Open Hardware Portal.

Licensing

This project is published under the Apache-2.0 license.