Wemos Mini and I2C LCD example

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Sometimes a nice big LCD is useful for your projects, in this example we will interface to an I2C LCD using our ESP32. Now these I2C LCD’s consist of 2 parts usually an HD44780 16×2 LCD and an I2C backpack which connects to the LCD exposing the standard power and […]

Wemos Mini and a TTP223 Capacitive Touch Sensor

In this example we will connect a TTP223 Capacitive Touch Sensor to our Wemos Mini. The TTP223 is a touch pad detector IC which offers 1 touch key.

 

 

Connection

The TTP223 Capacitive Touch Sensor has to be connected to Uno as follows:

Vcc to 3v3 Gnd to Gnd SIG to digital pin 0

 

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Wemos Mini and the BMP180 shield

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Similar to the last post on the DS18b20 shield this was another shield that did not appear on the Wemos site, this time it was for the BMP180 sensor

Here is a picture of the shield BMP180 Digital Barometric Pressure Sensor Board Digital Barometric Pressure Sensor Module For D1 MINI

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Wemos Mini compatible Ds18B20 shield

I already have a Ds18B20 example on this site but i was interested to see that searching through popular electronic component sites a DS18B20 shield for the Wemos mini, I couldn’t find a link on the Wemos site so I was intrigued and purchased one, I had planned on actually designing one (night still do […]