ESP32-S3FH4R2 Wi-Fi & BLE 5.0 SoC with 4MB Flash, 2MB PSRAM, QFN56
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Prices updated: 14 Oct 2026
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About this product
The ESP32-S3FH4R2 is a bare system-on-chip from Espressif with 2.4 GHz Wi-Fi (802.11 b/g/n) and Bluetooth 5 LE. It is built around a dual-core Xtensa 32-bit LX7 processor running up to 240 MHz, with 4 MB of flash and 2 MB of PSRAM in a QFN56 package. It is intended for custom PCB designs rather than plug-in development use.
Specifications
- Wi-Fi
- 802.11 b/g/n, 2.4 GHz / 802.11 b/g/n بتردد 2.4 جيجاهرتز
- Bluetooth
- Bluetooth 5 LE and Bluetooth Mesh / BLE 5 وBluetooth Mesh
- CPU
- Dual-core Xtensa 32-bit LX7, up to 240 MHz / نواتان Xtensa 32 بت LX7 حتى 240 ميجاهرتز
- Flash
- 4 MB / 4 ميجابايت
- PSRAM
- 2 MB / 2 ميجابايت
- Package
- QFN56
Frequently asked questions
Is this a development board I can plug into a breadboard?
No. The ESP32-S3FH4R2 is a bare chip in a QFN56 package. It needs a custom PCB with power, decoupling, clock and RF matching circuitry as described in Espressif's hardware design guidelines.
Can I program this chip with Arduino IDE or ESP-IDF?
Yes. ESP32-S3 is supported by the Arduino-ESP32 core and by Espressif's ESP-IDF. Programming is done through its UART or USB interface, usually using a suitable serial adapter during prototyping.
