Ditch the smart phone and communicate with your buddy by building this set of walkie talkies! A Feather ESP32-S3 Reverse TFT runs Arduino code that uses the ESP-NOW wireless protocol to send and receive I2S audio packets, up to 10 seconds each. The w.FL antenna adds extra range to communicate at longer distances indoors or outdoors.
The case design is inspired by toy walkie talkies that were ubiquitous in the early-1990s. The LED button on the side acts as a status indicator when pairing or sending and receiving messages. The onboard TFT shows status messages, such as MAC address, signal strength and packet status.
Parts
The parts listed below are what is needed to build one walkie talkie. You will need to build two walkie talkies for this project to work.
Page last edited April 14, 2026
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