ESP8266 Node MCU is a microcontroller development board with built-in WiFi for IoT and embedded projects.
Microcontroller: ESP8266EX
Operating Voltage: 3.3V (logic level), 5V USB input
Flash Memory: 4MB
GPIO Pins: 11 digital pins, 1 analog pin
Communication Interfaces: UART, SPI, I2C, PWM
WiFi: 802.11 b/g/n
Programming: Arduino IDE, Lua, MicroPython
USB Interface: Micro USB for programming and power
Features: Built-in WiFi, easy-to-use, Arduino compatible
ESP32-CAM is a WiFi & Bluetooth-enabled microcontroller board with an OV2640 camera for image and video projects.