WeMos D1 mini PRO 16Mbit ESP8266

This small ESP8266 WeMos D1 mini PRO microcontroller with 16Mbit flash memory is very powerful and also features a WLAN radio module. The module is compatible with the Arduino IDE and can be programmed immediately. With the ESP8266, you can easily connect your projects to the internet. The board is often used for IoT (Internet of Things) applications or simply connecting everyday things to the internet. For instance, you can easily connect your data logger to the internet and log data into a cloud. The WeMos D1 mini PRO has a Micro-USB connector for programming and power supply. Since the ESP8266 is a pure 3.3V controller, all inputs and outputs must only be operated with 3.3V! If you still want to connect or control something with 5V, you need to use a logic level converter. The WeMos D1 mini PRO features an antenna connector so you can improve reception with an external antenna. 

If you want to use an external antenna, you have to solder the zero ohm bridge from the on-board antenna to the external one.

Link CP2104 driver:

• https://www.silabs.com/products/development-tools/software/usb-to-uart-bridge-vcp-drivers

Technical details:

• Microcontroller: ESP8266EX
• Connector: Micro-USB
• USB-UART Converter: CP2104
• Operating voltage: 5V USB
• Digital I/O Pins: 10
• Analog input: 1 (10Bit max. 3.2V)
• CPU: 80MHz
• RAM: 96kB
• Flash: 16Mbit
• Wifi (Client, Access Point Mode)
• Integrated WiFi Antenna
• Antenna connector for external antenna (U.FL Pigtail plug)
• Size: 35 x 26 x 4mm
• Weight: 7.2g

Package includes:

• 1x WeMos D1 mini PRO 16Mbit ESP8266
• 2x Pin Header Male
• 2x Pin Header Female with long pins
• 2x Pin Header Female with short pins