Combines SparkFun’s Thing Plus form factor with QuickLogic’s EOS S3 MCU + eFPGA SoC
SparkFun “Thing Plus – QuickLogic EOS S3” development kit combines SparkFun’s Thing Plus form factor and the Qwiic® connect system with QuickLogic’s EOS S3 multicore MCU + eFPGA and QuickLogic’s QORC open source tools. This kit enables users to easily complement the embedded FPGA and MCU on the EOS S3 SoC with a multitude of additional development functionality. It’s fully supported by open source development tools, making the kit highly accessible to everyone.
Features and Specifications
- Arm® Cortex®-M4F Microcontroller
- up to 80 MHz operating frequency
- up to 512 KB SRAM
- Embedded FPGA (eFPGA)
- 2400 effective logic cells
- 64 Kb RAM
- Feather Form Factor
- Breadboard-compatible 0.1″ (2.54 mm) pitch headers - all headers are pre-soldered
- 2.75″ × 0.9″ (70 mm × 22.9 mm) footprint
- All 20 Feather-defined GPIO + 14 additional GPIO
- Interfaces
- SWD programming connector for use with USB-TTL converter
- USB data signals are tied to eFPGA programmable logic
- UART available via I/O headers
- I²C available via I/O headers, and Qwiic Connector
- I²S
- SPI
- Storage: 16 Mbit SPI NOR flash - GigaDevice GD25Q16CEIGR
- Sensors
- Accelerometer - STMicro LIS2DH12TR
- Digital pulse density modulation (PDM) microphone - Vesper VM3011-U1
- User Interfaces
- RGB LED
- User pushbutton
- Reset pushbutton
- Power
- USB micro Type-C connector (regulated to 3.3 V)
- Li-Po battery
- On-board charging circuitry - Microchip MCP73831/2
- Standard Li-Po JST connector
- Software
- Machine Learning
- Real-time Operating Systems
- FPGA Tools
Benefits
- Small and compatible with Adafruit’s Feather form factor and an extensive number of Qwiic products, including SparkFun's Qwiic Connect System that uses 4-pin JST connectors to quickly interface development boards with sensors, LCDs, relays, and more
- With an Arm® Cortex®-M4F MCU and integrated eFPGA, the onboard EOS S3 lets you innovate with 100% open-source hardware and software
- Fully open-source software development with support for FreeRTOS, Zephyr, nMigen, Docker and SymbiFlow
Applications
- Tiny ML applications such as with SensiML’s AI Software Platform and Google’s TensorFlow Lite
- General-purpose MCU applications
Qwiic Connect System
Thing Plus features SparkFun’s Qwiic connect system, which makes prototyping and development a snap:
- Tons of expansion boards: There are hundreds of Qwiic-compatible expansion boards to choose from, including everything from RFID readers to displays to keypads
- No soldering: Qwiic cables (4-pin JST) plug easily from development boards to sensors, shields, accessory boards and more, making it easy to set up a new prototype
- Polarized connector: There’s no need to worry about accidentally swapping the SDA and SCL wires on your breadboard – the Qwiic connector is polarized so you know you’ll have it wired correctly every time, right from the start
- Daisy chainable: It’s time to leverage the power of the I²C bus! Most Qwiic boards will have two or more connectors on them, allowing multiple devices to be connected
