Arduino & Development Boards

Technical Specifications
Microcontroller ATmega328P
Serial to USB Converter CH340
Operating Voltage 5V
Input Voltage 7-12V
Digital I/O Pins 14
PWM I/O Pins (Shared with Digital I/O) 6
Analog Input Pins 6
DC Current per I/O Pin 20mA
DC Current which can be drawn from 3.3V Pin 50mA
Flash Memory 32 KBytes
SRAM 2 KBytes
EEPROM 1 KBytes
Clock Speed 16MHz
Built-in LED Attached to digital I/O Pin 13
USB Connector Style B-Type Female
Board Dimensions (PCB) 68.8 x 53.4mm (2.7 x 2.1″)
Board Dimensions (with connector overhang) 77 x 53.4mm (3 x 2.1″)
Mfr China

Technical Specifications
ESP32-WROOM-32

Technical
Bandwidth 72 MHz
Data Rate 150 Mbps
Interface Ethernet, I2C, I2S, SPI, UART
Max Frequency 2.4 GHz
Max Operating Temperature 85 °C
Max Supply Voltage 3.6 V
Min Operating Temperature -40 °C
Min Supply Voltage 3 V
Nominal Supply Current 500 mA
Number of ADC Channels 16
Number of GPIO 32