ESP32-PICO-KIT V4.1 3.3V 5V ESP32 SiP Development Board with ESP32-PICO-D4
OVERVIEW ESP32-PICO-KIT is a mini development board produced by ESPRESSIF. At the core of this board is the ESP32-PICO-D4, a System in Package (SiP) module with complete Wi-Fi and Bluetooth functionalities. Comparing to other ESP32 modules, the ESP32-PICO-D4 integrates several peripheral components in one single package, that otherwise would need to be installed separately. This includes a 40 MHz crystal oscillator, a 4MB flash, filter capacitors and RF matching links in. This greatly reduces quantity and costs of additional components, subsequent assembly and testing cost, as well as overall product complexity.
The development board integrates a USB-UART Bridge circuit, allowing the developers to connect the board to a PC's USB port for downloads and debugging.
For easy interfacing, all the IO signals and system power on ESP32-PICO-D4 are led out through two rows of 20x0.1" pitch header pads on both sides of the development board. To make the EPS32-PICO-KIT fit into mini breadboards, the header pads are populated with two rows of 17 pin headers.
FUNCTIONAL DESCRIPTIONS : - ESP32-PICO-D4 : Standard ESP32-PICO-D4 module soldered to ESP32-PICO-KIT Board. The complete system of the ESP32 chip has been integrated into the SiP module, requiring only external antenna with LC matching network, decoupling capacitors and pull-up resistors for EN signals to function properly.
- LDO 5V-to-3.3V Low dropout voltage requlator (LDO)
- USB-UART Bridge A single chip USB-UART bridge : CP2102 in V4 of the board and CP2102N in V4.1. The first provides up to 1 Mbps transfer rates, while the latter up to 3 Mbps transfer rates.
- Micro USB Port USB interface. It functions as the power supply for the board and the communication interface between PC and ESP32-PICO-KIT.
- 5V Power On LED This light emitting diode lits when the USB or an external 5V power supply is applied to the board.