WSAL20624 – ESP32-S2-Pico/en

Documentation notice: This technical documentation was independently rewritten from an archived supplier source. Check technical details and commands against the product version and manufacturer documentation before use.

Summary

Compact WiFi development board featuring the ESP32-S2FH4 (LX7, 240 MHz), 8 MB PSRAM and a USB-C connector for the Pico expansion platform.

Related products at JW Tech

• WSAL20624 – ESP32-S2 MCU WiFi Development Board, 240MHz, 2.4 GHz WiFi, Optional LCD / Pinheader
• WSAL20658 – ESP32-S2 MCU WiFi Development Board, 240MHz, 2.4 GHz WiFi, Optional LCD / Pinheader
• WSAL21178 – ESP32-S2 MCU WiFi Development Board, 240MHz, 2.4 GHz WiFi, Optional LCD / Pinheader
• WSAL21179 – ESP32-S2 MCU WiFi Development Board, 240MHz, 2.4 GHz WiFi, Optional LCD / Pinheader

Technical overview

• SoC: Xtensa LX7 32-bit core, up to 240 MHz
• Memory: 320 KB SRAM, 128 KB ROM, 8 MB PSRAM, 4 MB Flash
• Connectivity: IEEE 802.11 b/g/n, 2.4 GHz WiFi via integrated ceramic antenna, up to 150 Mbps
• Interfaces: USB-C, full-speed USB OTG, LCD (8-bit RGB/8080/6800), TWAI (ISO 11898-compatible), capacitive sensors, temperature sensor, RMT TX/RX
• Power: TPS63000 boost/buck IC rated at 1.8 A
• Expansion: Compatible with the Raspberry Pi Pico expansion board ecosystem; watch for pin overlap when connecting
• LCD variant: 0.96-inch IPS display (160×80 pixels, 65K colors) with a 3.7 V lithium battery charging header (MX1.25)
• Development environments: CircuitPython, MicroPython, or C/C++ (Arduino or ESP-IDF)
• Boot/download mode: Hold BOOT, then press RESET; release RESET first, then release BOOT
• USB debugging: GPIO19/GPIO20 serve as USB pins for firmware download and serial debugging

Commands and examples – verify before use: 

#define adc0 6
#define adc1 7
#define adc2 8
#define adc3 1
#define dac_pin 17
HWSerial.begin(115200);
USBSerial.begin();
USB.begin();

Notes and version constraints

• No current pricing, stock, or warranty information in the source – confirm with the supplier
• If the WiFi signal is weak, adjust the board orientation and keep the antenna unobstructed
• Flash contents are erased before every firmware download; the process takes about 1 minute
• Exact pin assignments are version-sensitive – check the latest datasheet before use
• Mac/Linux users should follow separate installation instructions than those documented for Windows 10

Source and revision record

• ESP32-S2-Pico - Waveshare Wiki
• Source revision: 100969
• Captured: 2026-09-02T04:04:59+00:00
• SHA-256: a86fb17e04b020318190d54fa65d18952dfa0e129bb9ecc99146f68a0185d70f