21st Century Learning and Teaching

Social Distancing Monitor with Alarm, Arduino NANO and I2C LCD1602 Display In times of the Coronavirus-Crisis (Covid_19), it might be GOOD to respect the 2 meters distance to avoid getting infected!!! But not everybody can estimate distances, nor are ALL persons respecting the 2 meters rule!!! So came the idea to build an…

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LCD-Display Errors Solving WHO doesn't have that error already with LCD-Displays: Once uploaded (compiling) the code to the Arduino IDE there could be some errors happening, it happens to me… 

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How-To transform an LCD1602 SPI Sketch to an LCD1602 I2C Sketch We were already playing around, as seen on my tutorials below, with the Temperature/Humidity sensors DHT11, DHT22 and LCD1602, without I2C possibility. There were a lot of cables to connect, we will try out this time to use a LCD with I2C bus connection as it…

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Displaying Time, Date, Temperature and Humidity on a LCD2004 Display We were already playing around with a LCD2004 display in a previous tutorial where we displayed the temperature and the humidity <===> First Steps with the Arduino-UNO R3 and NANO | Maker, MakerED, Coding | I2C LCD Temp./Humidity displaying, now we will add…

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Well, I made some searches on the internet and I found the right answer on a forum about this error, which says that one should scan the I2C Address of the device and replace the “lcd.init();” by “lcd.begin (0x3F,16,2);” whereby “0x3F” is the I2C Address of my LCD1602/I2C module. I scanned to find out the I2C Addess with this sketch, please check here:

https://playground.arduino.cc/Main/I2cScanner

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