ESP32-DevKitC is a small-sized ESP32-based development board produced by Espressif.
ESP32-DevKitC[obniz Cloud No Expiry Licensed] has obnizOS written to it from our factory.

How to use with obniz

Install obnizOS for ESP32and write a DeviceKey you generate to your DevkitC. Then you can control its IOs from the internet.

See obnizOS quick start.


Most of the I/O pins are broken out to the pin headers on both sides for easy interfacing. Developers can either connect peripherals with jumper wires or mount ESP32-DevKitC on a breadboard.


Key ComponentDescription
ESP32-WROOM-32A module with ESP32 at its core.
ENReset button.
BootDownload button.
USB-to-UART BridgeSingle USB-UART bridge chip provides transfer rates of up to 3 Mbps.
Micro USB PortUSB interface. Power supply for the board as well as the communication interface between a computer and the ESP32 module.
5V Power On LEDTurns on when the USB or an external 5V power supply is connected to the board.
I/OMost of the pins on the ESP module are broken out to the pin headers on the board. You can program ESP32 to enable multiple functions such as PWM, ADC, DAC, I2C, I2S, SPI, etc.

ESP32-DevKitC-32D Datesheet

Registering devices to the cloud

You can register devices in the cloud by going to Register device.
Registering to the cloud allows you to increase the level of security and manage your devices at a glance