LILYGO ESP32-S2
Pure ESP32-S2 development board with 4MB Flash, 8MB SRAM, native USB, WiFi 802.11 b/g/n, onboard LiPo charging, and multiple control buttons — a single-core Xtensa LX7 board for USB-HID and IoT applications.
$8.00
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Specifications
Components
Single-core Xtensa LX7 at 240MHz with native USB OTG, WiFi 802.11 b/g/n, and 320KB SRAM.
Onboard LiPo charger with 500mA charging current via 1.25mm JST 2-pin connector.
Bus Interfaces
Overview
The LILYGO ESP32-S2 is a development board built around the Espressif ESP32-S2 single-core Xtensa LX7 processor. Unlike the dual-core ESP32, the ESP32-S2 features a native USB OTG interface, making it ideal for USB HID device development (keyboards, mice, MIDI controllers) without an additional USB-to-serial chip. It includes 4MB Flash and 8MB SRAM, WiFi 802.11 b/g/n connectivity, and onboard LiPo battery charging with a 1.25mm JST 2-pin connector. The board exposes multiple control buttons — Power Switch, Reset, Boot, Customize, and a DPI Switch — providing flexibility for interactive applications. Operating at 2.7V–3.6V with 500mA charging current, it is well-suited for IoT nodes, USB peripherals, and battery-powered WiFi devices.
Use Cases
4IoT
Internet of Things applications including connected sensors, actuators, and smart devices that communicate over WiFi, BLE, LoRa, or other wireless protocols.
Smart Home
Home automation devices for controlling lighting, climate, security, and appliances.
Environmental Monitoring
Monitoring environmental conditions like temperature, humidity, air quality, and weather data using remote sensors.
Smart Switch
Build WiFi or BLE controlled relay boards for switching lights, appliances, and HVAC.
Where to Buy
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