The Wemos D1 Mini is a budget-friendly, ESP8266‑based WiFi board which is compact yet and as powerful as any NodeMCU or ESP8266 board by Espressif Systems. It comes with built-in WiFi connectivity, making it an ideal choice for IoT (Internet of Things) projects, smart home devices, and small-scale automation systems. The D1 Mini is faster, more flexible, and lower in cost than traditional microcontrollers like Arduino or PIC, offering built‑in WiFi and strong online support for beginners.

Specification

• Processor: Tensilica L106 32-bit RISC

• Clock Speed: 80 MHz (up to 160 MHz)

• Flash Memory: 4 MB

• SRAM: 50 KB (Usable)

• WiFi: 802.11 b/g/n (2.4 GHz)

• Bluetooth: No

• GPIO Pins: 11 (D0–D8, RX, TX)

• ADC: 1 (10-bit)

• PWM Pins: All GPIOs (software-supported)

• Antenna: On-board PCB antenna

• Programming Port: USB Type-C

• Logic Voltage: 3.3V

• Input Voltage (via USB): 5V

• Dimensions: 35 × 25 mm (±1 mm)

Power Supply: The module can be powered via the USB port or by using an external 5V power supply connected to the 5V pin.

Application

• IoT Devices & Automation

• Smart Home Control

• Sensor Data Logging & Cloud Upload

• Wi-Fi Web Server/Client

• Mobile-Controlled Robots

Package Includes:

1 x ESP8266 D1 Mini Wi-Fi Module