Changes between Version 1 and Version 2 of ArduinoWemos


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Timestamp:
May 16, 2018, 7:53:53 PM (7 years ago)
Author:
David Albert
Comment:

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  • ArduinoWemos

    v1 v2  
    1 The WeMos D1 and clones is a single board computer based on the ESP8266 which combines a 32-bit RISC processor with a WiFi transceiver.  The WeMos and clones are available on eBay, amazon, and [https://www.aliexpress.com/item/USB-CP2102-32M-FLASH-WeMos-D1-ESP8266-Internet-Wifi-Module-for-Nodemcu-Lua-V3-DC-Power/32814901470.html AliExpress for $3.19]. 
     1The [https://forum.wemos.cc/category/2/d1-boards WeMos D1] and its clones are single board computers based on the ESP8266.  They combine a 32-bit RISC processor with a WiFi transceiver and 4MB of serial flash.  These are cheaper and much more powerful than the traditional 8-bit AVR processors used in Arduino Uno and compatible boards, but they can still be programmed using the hobby-friendly Arduino environment.  The boards are widely available at very low prices on eBay, amazon, and [https://www.aliexpress.com/item/USB-CP2102-32M-FLASH-WeMos-D1-ESP8266-Internet-Wifi-Module-for-Nodemcu-Lua-V3-DC-Power/32814901470.html AliExpress for $3.19].  It's hard to get a fast embedded system that you can put online for less money.
    22
    33It can be programmed using Arduino after installing support for the ESP8266 platform:
    … …  
    4343  you should see your board sending out an increasing count every 2 seconds.
    4444
    45 The WeMos D1 pin mappings are [https://github.com/esp8266/Arduino/blob/master/variants/d1_mini/pins_arduino.h#L49-L61 here]
     45The !WeMos D1 pin mappings are [https://github.com/esp8266/Arduino/blob/master/variants/d1_mini/pins_arduino.h#L49-L61 here]