Understanding and interfacing LDR – light dependent resistors
LDR (Light Dependent Resistor) is simple, cheap electronic device. Simply speaking this is a resistor which resistance varies depending on light intensity. You’ve probably seen typical LDR in some...
View ArticleTesting LCD keypad Shield for Arduino
Recently I’ve got an Arduino LCD keypad shield. Haven’t decided yet where will it be used. But why not to plug it to Arduino board and see it working. Shield was originally introduced by DFRobot who...
View ArticleTest run of VFD display using Arduino
Among my electronics junk I found a VFD (Vacuum Fluorescent Display) display and wanted to make sure it still works and can be used in projects. It’s a 16T202DA1E display manufactured by Samsung. It...
View ArticleCheap Arduino compatible boards are same as original
Probably you have noticed that Arduino is spread worldwide. It would be ridiculous to see one manufacturer producing them. The Arduino group produces original board that are named Arduino. This is...
View ArticlePressure-less solar collector controller prototype
It’s been over three month since solar collector were installed. I decided to build controller by myself. And it turned out that it stayed in prototype stage. So I put it in to enclosure and left it...
View ArticleHow to drive stepper motor with Arduino motor shield
Previously we have driven servo and DC motor using this simple Arduino motor shield. And we saw how it is easy to interface these motors and write a code. This time we get to real business – stepper...
View ArticleGearbest review: Arduino Mega2560 and LCD keypad demo project
Arduino is a great platform for fast prototyping and building projects. But probably one of the best things here is, that Arduino layout allows plugging hundreds of standard shields. Today you can...
View ArticleEcholocation with HC-SR04 ultrasonic distance sensor
Ultrasonic echolocation is common practice in many areas including nature itself. We all know how bats or dolphins navigate – they emit ultrasonic waves and depending on time delay of reflected echoes,...
View ArticleGreat tool to play with biosignals – biomedical shield for arduino
Medical equipment is expensive and not always accessible for wide audience. In fact in any biomedical measuring instrument there are nothing very special – here you can find ADC, analog front-end with...
View ArticleGet in to makers world with Elegoo Mega 2560 Project The Most Complete...
If you are just a beginner in electronics or just started learning Arduino – it is easy to get lost among hundreds of boards, electronics parts, and tutorials. You may already have an Arduino board to...
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