The Wemos D1 has Arduino format card.
Wemos main circuit is ESP8266

Features of ESP8266:
- WIFI 2.4 GHz 802.11 b/g/n
- low power 32-bit MCU RISC architecture 80MHz
- 4 Mbits of flash
- 10-bit ADC is available
- SDIO 2.0, (H) SPI, UART, I2C, I2S, IR Remote Control, PWM, GPIO

To install library for Arduino IDE version 1.8.2 or superior
- Start Arduino and open Preferences window.
- Enter http://arduino.esp8266.com/stable/package_esp8266com_index.json into Additional Board Manager URLs field.
- Open Boards Manager from Tools > Board menu and install esp8266 platform
(and don't forget to select your ESP8266 board from Tools > Board menu after installation).

I show a sample of Wifi Scanner. you can use it as Webserver too, really good product,
with a big potential for DIY.

Wemos site :
https://wiki.wemos.cc/start

Drivers Wemos CH340
https://wiki.wemos.cc/downloads

Here is my Patreon :
https://www.patreon.com/TVTEK2


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"Wagon Wheel - Electronic" Kevin MacLeod (incompetech.com)
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