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.

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.

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.

You'll learn how to create an automation system to communicate 3 Arduinos via RS485.

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

Relay VS Transistor.

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

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.

In this tutorial I am looking at using millis function in the code. Describing the advantages it has over using delay function.

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

Another simple to build useful instrument in you lab.

Simple to build and useful instrument for your lab.

Inexpensive, precision, autorange capacitance meter with a large range.

The device is sufficiently accurate and uses minimum number of external components.

A cheap $10 UPDI programmer for Mircochip's new avrTiny processors.

Android app to control Arduino's inputs outputs

Android app of frequency counter using Arduino.

Measure and record mains frequency on the SD card along with the timestamp.

Oscilloscope for Android device and Arduino.