ESP32-PICO-KIT Dev. Board, V4.1

The ESP32-PICO-KIT is an ESP32-based mini development board produced by Espressif.

The core of this board is the ESP32-PICO-D4, a System-in-Package (SiP) module with complete Wi-Fi and Bluetooth functionalities. Compared to other ESP32 modules, the ESP32-PICO-D4 integrates the following peripheral components in a single package:

• 40 MHz crystal oscillator
• 4 MB flash
• Filter capacitors
• RF matching links

This setup reduces the cost of additional external components as well as assembly and testing costs, while increasing the overall usability of the product.

The development board features a USB-UART Bridge circuit that allows developers to connect the board to a computer's USB port for flashing and debugging.

All IO signals and system power on the ESP32-PICO-D4 are routed to two rows of 20 x 0.1" header pads on both sides of the development board for easy access. For compatibility with Dupont wires, 2 x 17 header pads are populated with two rows of male pin headers. The remaining 2 x 3 header pads beside the antenna are not populated.

Note: There are two versions of ESP32-PICO-KIT boards, respectively with male headers and female headers. In the V4.1 version shown here, the headers are male.