Myra System-in-Package Interposer

Copyright (c) 2024 Antmicro

Overview

This repository contains open hardware design files for Antmicro's Myra System-in-Package, a compact System-on-Module derived from Antmicro's Environment Sensor board. The design replaces the MCU, FRAM and USB to UART converter with a single chip.

The SiP is also used in the Environment Sensor Myra Baseboard which extends it with temperature, pressure and humidity sensors, a USB-C connector, QWIIC connectors and an RTC battery pickup.

The design files were prepared in KiCad 7.

Key features

• STM32G491REI6 MCU
• 128kB FRAM
• FT231XQ USB to UART converter
• 11.4 mm X 11.4 mm
• USB interface
• 2 x I2C interface
• SPI interface
• 3 GPIO pins

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.