WeMos D1 Mini PRO ESP8266EX Module Arduino IoT

D1 Mini Pro development board with WiFi ESP8266 module and 16 MB Flash memory, equipped with a ceramic antenna and an external antenna connector. The module can be programmed from the Arduino IDE. WeMos D1 Mini Pro

The Wemos D1 mini PRO system is a board with soldered ESP8266-12F. It has a built-in USB-UART (CH340) converter, thanks to which we can program the board via USB (a micro USB cable is enough) without an additional converter. In the D1 mini Pro, the use of a ready-made ESP-12F module was abandoned and everything was designed from scratch. The ESP8266 chip remained the same. The USB-serial converter has been changed to CP2104. Instead of 4MB flash here we have 16MB. In addition, there is no place for a PCB antenna here, instead a better 3dB ceramic antenna was used. There is also a place on the board for the U.FL (IPX) antenna connector. Unlike the D1 mini - Wemos D1 mini Pro is a one-sided construction. The bottom of the board is flat and there are no components on it. In both versions of the board, we have 9 GPIO ports that support PWM, I2C, SPI and 1-Wire. There is a 3.3V voltage regulator on the board, so the module can be powered from the USB port, e.g. using a charger with a micro USB connector. Wemos D1 can be used in 3 ways. Using AT commands, programming with NodeMCU in LUA language or the simplest with Arduino IDE.

Specification:

The module is based on the ESP8266EX system

Ceramic 3dB antenna

U.FL antenna connector (IPX)

Built-in flash memory: 16MB

Wi-Fi connectivity in the 802.11 b / g / n standard

It works in AP (Access Point), STA (Standalone), AP + STA modes

Supports TKIP, WEP, CRC, CCMP, WPA / WPA2, WPS

Power supply: 3.3V (or 5V via USB port)

RISC 80MHz processor (also working at 160MHz)

9 GPIO ports - PWM / I2C / SPI / 1-Wire

Maximum current on I / O pins: 12mA

Recommended current on I / O pins: 6mA

USB-UART converter - CP2104

ADC converter - 10-bit

16 pins in 2.54mm pitch - Suitable for contact plates

Micro USB connector

Dimensions: 34 x 25mm

LED connected to GPIO2 (D4)

Attention!

The maximum allowed voltage on the lines of the ESP8266 system is 3.3 V. Make sure that the add-on module attached to the board does not force the lines of the ESP8266 system higher than allowed.

Set contains:

Board compatible with WEMOS D1 mini PRO

2 x male goldpin connector

2 x female goldpin connector short

2 x female goldpin long connector

Useful links:

Drivers https://www.driverscape.com/download/usb-serial-ch341