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IoT Based Fingerprint Attendance System Using Evive (Arduino Based Embedded Platform)

Leave a Comment / Using Arduino / By Tech Master

Now, you can easily track attendance and clock working hours with the help of this easy and fun to make DIY fingerprint scanner! We’ll be using ThingSpeak to store and retrieve the data. All you require is a cardboard piece, some colored paper, a fingerprint sensor, evive, and lots of DIYing! Ready for some scanning …

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Arduino and CueCat barcode scanner

Leave a Comment / Using Arduino / By Tech Master

I’ve had a cuecat barcode scanner sitting around for over 10 years. Basically it connects to a PS2 port (apparently there is a USB version) like a keyboard and spits out a barcode when scanned. Nice!. The annoying thing is that it is “encrypted”. What I set out to do is; – unencrypt the barcode …

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Larson Scanner with Relay Module using Arduino

Leave a Comment / Using Arduino / By Tech Master

This time I’ll show how I used an Arduino to control a relay module with eight channels. Arduino in offers several advantages such as: – Open source; – Easy programming; – You can assemble your own board; – Is supported on various forums on the Internet; – Has several “shields” (facilitates the use of it …

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Using a LED Matrix As a Scanner Using Arduino

Leave a Comment / Using Arduino / By Tech Master

Ordinary digital cameras work by using a large array of light sensors to capture light as it is reflected from an object. In this experiment, I wanted to see whether I could build a backwards camera: instead of having an array of light sensors, I have …

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Cylon Pumpkin Using Arduino

Leave a Comment / Using Arduino / By Tech Master

This has been done before. There are several good ways to do it: most use either a 555 timer chip and decimal counter chip, or an Arduino. Stefan and I used an Arduino (Boarduino, technically) which limited our scanner to 14 LEDs. No problem — 14 gives a nice scanning effect! Here’s how we wired it: the numbers …

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Using a LED Matrix As a Scanner Using Arduino

Leave a Comment / Using Arduino / By Tech Master

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2.4GHz WiFi ISM Band Scanner. Part 1 Description and Schematic1

2.4GHz WiFi & ISM Band Scanner. Part 1 – Description and Schematic using pic microcontoller

Leave a Comment / Using Pic Microcontroller / By Tech Master

Have you ever wondered exactly what is going on in the 2.4GHz WiFi and ISM band around your house. What channel is it best to set your wireless router to? Why are you getting such poor performance across your WiFi network? Is your neighbour on the same frequency? Just what is out there? This neat …

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Wave JT – Larson Scanner With Joule Thief Using Atmega

Leave a Comment / LED Projects / By Tech Master

I love LED chasers. A bunch of LEDs neatly turning on and off on a precise timing – lights running one way, then the other way… It’s relaxing, soothing, and hypnotic. There are so many LED chaser/scanner/sequencer circuits out there, some are made with discreet transistors, some based on logic ICs, and more and more …

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