This device can also be called an EMF meter, as it can measure the relative strength of a field using a scale of 10 LEDs.

Connect multiple IO Expanders together using a 9-bit multidrop communications.

Graphic representation of a potentiometer reading.

The most used programmer in Arduino and other compatible boards. Let's have a closer look on circuitry and more.

Adjustable Temperature PTC Hot Plate for soldering SMD

How to make a VU meter with 38 bars per channel on a modified 20x2 VFD display.

This project can identify Basic Logic Gate ICs, viz. NOT, AND, NAND, OR, NOR and XOR using Arduino

The maximum signal frequency that the oscilloscope can display is 20 kHz, and the maximum input voltage is 5 V without a voltage divider.

Learn how to make a FLEX Sensor for almost no money at home. These kinds of sensors cost quite a lot in the market ranging from 10$ to 30$!

The device is capable of testing: PNP, NPN transistors, N or P channel MOSFET, diodes, double diodes, resistors, capacitors...

The design and assembly of a DNA transilluminator allowing to examine the results of gel-electrophoresis procedures.

This is a simple square-wave generator that basically uses the TimerOne library allow you to generate a PWM signal at pin 9.

3-channel voltmeter with the ability to measure both negative & positive voltages on the same circuit or 3 different circuits simultaneously

There are numerous examples of how to connect button switches via an external interrupt. This example offers an alternative approach.

If you need to debug your Arduino WifiNINA project remotely, plot charts of monitoring data, and more, this is the project for you...

Relay VS Transistor.

Discharge a fully charged Lithium-Ion cell through a resistor while measuring the current flowing through the resistor to calculate capacity

One port to read them all!

A very simple but useful device for your lab.

This device serves for accurate measurement of small resistances in the range of 0.1 ohm up to 50 ohms.

You'll learn how to communicate two Arduinos via RS485.

"how to hook NRF24 Modules with an Arduino Correctly without killing the module"

Another simple to build useful instrument in you lab.

You have a fan, but you don't know how to control it? Then you're right here.