With the Wemos D1R2 board, the Arduino st7789 library needs to be used. ST7789 is the IC for the display, this is shown on the back of the display. Only 4 pins had to be used because the BLK light is ...

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Despite a wealth of tutorials for setting up and writing code for the ESP8266 WiFi module, there has not been much of anything on programming this cheap wireless module with the Arduino IDE. Finall… ...

Like many of us, [Josef Adamčík] finds himself fascinated with so-called “freeform” electronic designs, where the three dimensional circuit makes up sections of the device’s struc… ...