LILYGO T-Embed SI4732
ESP32-S3 board with SI4732-A10 AM/FM/SW/LW radio receiver, 1.9" IPS display, 900mAh battery, and rotary encoder for a portable software-defined radio experience.
$38.96
Tap any value to browse matching devices
Specifications
Components
Xtensa LX7 dual-core at 240MHz with 16MB flash, 8MB PSRAM, WiFi 802.11 b/g/n and BLE 5.0
Silicon Labs SI4732-A10 single-chip radio receiver covering AM (520–1710 kHz), FM (64–108 MHz), shortwave (2.3–26.1 MHz), and longwave (153–279 kHz)
Sitronix ST7789V TFT LCD driver controlling the 170×320 IPS panel via SPI interface
Single-cell lithium battery charger with 1A charge current and protection circuit
Overview
The LILYGO T-Embed SI4732 is a compact all-in-one radio receiver development board combining the ESP32-S3 with Silicon Labs' SI4732-A10 chip, which supports AM, FM, shortwave (SW), and longwave (LW) reception across a wide frequency range. This makes it an excellent platform for building portable radio receivers and SDR-adjacent projects.
The board features a 1.9" ST7789V IPS display at 170×320 resolution for showing station information, signal strength, and custom UI elements. A built-in rotary encoder provides intuitive frequency tuning and menu navigation without additional hardware. The 900mAh LiPo battery and integrated charging circuit enable standalone portable operation.
With 16MB of flash and 8MB of PSRAM, the ESP32-S3 has ample resources for running rich radio receiver firmware such as the popular ATS-25 or PU2CLR SI4732 Arduino library. The combination of WiFi, Bluetooth, and the SI4732 radio makes it suitable for internet radio hybrids that can also receive traditional broadcasts.
The board is compatible with Arduino IDE and ESP-IDF, with strong community support through existing SI4732-based radio receiver projects.
Use Cases
4AM/FM Radio Receiver
Software-defined or hardware AM/FM radio receiver for broadcast radio reception.
Portable Media Player
Battery-powered media player for audio or video playback on the go.
Weather Station
A device that displays current weather conditions and forecasts, typically using WiFi to fetch data from weather APIs.
Internet Radio
WiFi-connected streaming radio player receiving online audio streams via internet.
Where to Buy
Explore more of the directory — popular use cases, firmware, and specs to browse next.
