Simple Arduino code to test a BTTouch 3D printer sensor. After a lot of frustration trying to get a BLTouch and a clone (3DTouch) device working, I decided it would be useful to have a simple circuit ...

This is code for a lidar sensor found on aliexpress, the sensor says it's 100m, but under initial tests I believe it's only 10m (32.x feet) Uses LiquidCrystal (version 1.0.7). Because the Arduino IDE ...

If your Arduino soil moisture sensor isn't working, check these common issues: verify all wire connections are secure, ensure you're using the correct Arduino pins (A0 for analog, digital pin for ...

The Arduino IR sensor module code is very simple and easy to understand. We are just basically keeping track of whether the input to pin D9 is HIGH or LOW. We initialize our code by declaring two ...

After some searching, I ended up using a microcontroller and a piece of code borrowed from the web that I tweaked and adapted. The microcontroller-based concept was chosen because I wanted to scale ...

It uses Arduino Duemilanove microcontroller board. Two wires placed in the soil pot form a variable resistor, whose resistance varies depending on soil moisture. This variable resistor is connected in ...