An all-in-one RF platform built around the ESP32-WROOM-32U, combining Wi-Fi, Bluetooth, and sub-GHz RF into a single battery-powered device with a 2.8" LCD display and USB Type-C charging.

• This project is intended for educational and research purposes only
• The author accepts no liability for regulatory non-compliance resulting from use of this project
• Users are solely responsible for ensuring compliance with all applicable local laws and regulations This project is provided as-is, with absolutely no warranty of any kind, express or implied. The author(s) accept zero responsibility or liability for any outcome resulting from the use, assembly, or operation of this hardware - including but not limited to property damage, fire, personal injury, or death.

Use entirely at your own risk. The author(s) have no responsibility whatsoever for anything that goes wrong.

• Regulatory Disclaimer This project may use uncertified radio frequency (RF) modules. These components have not been independently tested or certified for compliance such as for FCC (USA), CE (EU), or any other regulatory framework. ard.** This device may use a Protected LiPo/Li-ion battery with a BMS. LiPo/Li-ion batteries can swell, leak, catch fire, or explode if incorrectly charged, stored, handled, or if the hardware malfunctions. The author(s) accept no responsibility for any damage, injury, or death caused by battery failure or misuse.e.
• RF transmission. This device transmits RF signals. It is your sole responsibility to comply with all applicable local, national, and international radio frequency regulations (e.g. FCC, CE, OFCOM). Only operate in a controlled environment where RF emissions can be properly managed.
• No certification. This design has not been tested, certified, or approved for any commercial, consumer, safety-critical, or regulatory-controlled application.
• No guarantees. The author(s) make no guarantees regarding the accuracy or fitness for purpose of the schematic, BOM, firmware, or any associated documentation.

By using, building, or operating this project in any form, you accept full and sole responsibility for all risks and any consequences that arise.

By using this project in any form, you agree to assume all associated risks and responsibilities.

Connect via USB Type-C to flash firmware via your preferred flashing software through the onboard FT232RL(typically driver-free). You can also choose to flash directly through the exposed flashing pins and your own chosen flashing device. The MCP73871 handles battery charging automatically when USB is connected. Warning that the onboard battery controller does not have a cut-off threshold, a protected battery must be used. Refer to charging controller MCP73871-2CCI/ML for appropriate battery specifications. The charging IC does not have low voltage cut-off. You must use an appropriate protected battery with a BMS. A battery is not required, it can be powered through USB-C..

RF development usually requires juggling multiple separate modules and boards. This consolidates everything into one clean, portable device for wireless experimentation and IoT development.

• 08/03/2026 - Sample firmware released
• 08/03/2026 - Traces ran over/under NPTH. This is fixed