The Wemos D1 R1 is an Arduino UNO-style development board powered by the ESP8266 WiFi module, offering built-in 2.4GHz WiFi, digital I/O pins, and USB programming.
Operating Voltage: 3.3V (Logic), 5V input via USB
Compatible with Arduino IDE, NodeMCU firmware
Ideal for IoT projects, smart home automation, and wireless sensor networks
Compact, affordable, and perfect for students, makers, and hobbyists
The WROOM-32D ESP32D Development Board is a compact, high-performance microcontroller module with built-in WiFi and Bluetooth 4.2 connectivity. Operating at 3.3V, it features a dual-core Tensilica LX6 processor, 38 GPIO pins, and supports Arduino, ESP-IDF, and MicroPython, making it perfect for IoT applications, wireless communication, smart home automation, and robotics.