Circuit Diagram and Explanation: In this Arduino Alcohol Detector Shield we have used a MQ3 sensor to detect present alcohol level in the breath. A 16x2 LCD is used for displaying the PPM Value of ...

I use that in a lot of Circuit VR posts so you can click on a circuit and see it live. However, the simulator does not save the source code in the virtual Arduino. You have to do that yourself.

Here is a useful circuit for Arduino lovers and experimenters. It is a simple digital voltmeter, ... 100R Resistor; 10K Preset Pot; 16×2 Parallel LCD ( Hitachi HD44780 driver compatible) How to make ...

To do so, the Arduino was set up to monitor the BUSY line on the printer’s parallel port, setting the CTS line active whenever the busy line was inactive. With our task made clear, hours of ...

In circuits connected in parallel, the components are connected on different branches. Find out more with BBC Bitesize. For students between the ages of 11 and 14.