The OKD Acorn ESP32 Dev Board is a packed ESP32 development board with 8MB of Flash and a whopping 26 GPIO! 76.6 mm* 45 mm Sized Board (Slightly smaller than a credit card), this is our largest and first board we offer!

The OKD Acorn ESP32 Dev Board has utilized a modern fast highly-integrated ESP32 chip, built around a Xtensa® chip processor that operates at up to 240 MHz.

This board equips the highly-integrated ESP32 SoC. The chip has been installed with a complete 2.4GHz Wi-Fi subsystem which means it supports Station mode, SoftAP mode, SoftAP & Station mode, and promiscuous mode for multiple Wi-Fi applications. It works under an ultra-low power state, and also supports features of Bluetooth 4.2 and LE. There is 520 KB SRAM & 8MB Flash, allowing for more programming space, and bringing more possibilities to the IoT and Arduino control scenarios.

Being new to the OKD family, this board maintains a classic small form-factor design (slightly smaller than a credit card), and elegant productization of single-sided components mounting. There are 26 GPIO pins. Includes onboard MicroSD card support and RGB LED.

This board supports UART, IIC, JTAG, and SPI serial communication ports, also including IIS (Internet Information Services) and encryption. Utilizing its small and elegant hardware designed in the USA and the powerful onboard chip, programming by Arduino, PlatformIO, MicroPython, or ESP-IDF, it offers more functionality and flexibility for wearables, sensors, smart displays, and portable devices or other applications.

2x18P pinout layout, standard 2.54mm pitch (100mil) and breadboard friendly, with one side dedicated for peripheral (power, programming, communication) and the other side for GPIO!

ESP32-WROOM-32E, comes with latest ECO V3 Dual Core 32-bit LX6 microprocessor with clock up to 240MHz, ULP co-processor, 520kB SRAM, 8MB Flash.

802.11b/g/n WiFi Connectivity, support multi modes STA/AP/STA+AP mode

Bluetooth 4.2 Connectivity, supports classic BT and Low Energy (LE) protocol.

CH340C UART to USB Bridge, full-speed programmer and data port

XC6220 LDO, providing +3.3V power up to 1 amp with green operation mode which automatically switches to power save mode with a light load

Built-in LED/RGB, single color active-low LED connected to pin GPIO2, and SK6812 addressable RGB LED connected to pin GPIO4. SK6812 data out is exposed also, so you can create a chain of RGBs easily!

MicroSD Connector, connected via SPI with slave select (SS) at pin GPIO5 full or high speed (Recommend the SDFat Library).

USB Type-C Connector, no more frustration when connecting a USB cable, plug it in any direction you want

26 GPIO Pins @3V3 level, 2xSPI, 2xI2C, 3xUART, 2xI2S, 12bit ADC, 8bit DAC, JTAG debug, etc.