Tag: tester
![Stefan Wagner’s NeoController Tests and Controls NeoPixel LED Strips Stefan Wagner’s NeoController Tests and Controls NeoPixel LED Strips](https://www.electronics-lab.com/wp-content/uploads/2021/06/NeoPixel-Tester-1024x576.jpg)
Stefan Wagner’s NeoController Tests and Controls NeoPixel LED Strips
When you buy any small development board, one of the first things you try is interfacing the programmable NeoPixels. One such example we saw was in the case of Raspberry Pi Pico, which interfaced the NeoPixels using the programmable IOs. If you have been following the maker community,...
Continue Reading![Free Elektor Circuit – Acoustic IR Remote Control Tester Free Elektor Circuit – Acoustic IR Remote Control Tester](https://www.electronics-lab.com/wp-content/uploads/2020/02/Small-Circuits-Revival-15-Acoustic-IR-Remote-Control-Tester-Elektor-Magazine.png)
Free Elektor Circuit – Acoustic IR Remote Control Tester
In this circuit we use the output signal from a standard IR receiver (IC1 in the schematic of Figure 1) to drive a miniature loudspeaker. The IR receiver from Vishay used here is available for various frequencies ranging from 30 to 56 kHz. A large number of IR remote controls operate...
Continue Reading![Continuity Tester using ATtiny85 Continuity Tester using ATtiny85](https://www.electronics-lab.com/wp-content/uploads/2017/11/continuitytesterpcb2-1024x217.jpg)
Continuity Tester using ATtiny85
This article describes a simple continuity tester based on an ATtiny85. The tester features a buzzer that sounds to help you determinate the trace continuity. It is designed for checking circuit wiring, or tracing out the tracks on a PCB. According to it's author David Johnson-Davies it...
Continue Reading![HPS140MK2, The New Handheld Oscilloscope HPS140MK2, The New Handheld Oscilloscope](https://www.electronics-lab.com/wp-content/uploads/2017/02/hps140mk2-the-new-handheld-oscil.jpg)
HPS140MK2, The New Handheld Oscilloscope
Velleman Inc., a producer and a distributor of electronics, has produced a new handheld oscilloscope with the same power of its HPS140, but with smaller size and modern design. HPS140MK2 is a 11.4 x 6.8 x 2.2 cm versatile component tester that fits in your pocket. This small...
Continue Reading![Analog Capacitor ESR Tester Analog Capacitor ESR Tester](https://www.electronics-lab.com/wp-content/uploads/2016/10/P1000235-Large-1024x755.jpg)
Analog Capacitor ESR Tester
TallMan's lab @ runawaybrainz.blogspot.com build a nice looking and simple analog ESR capacitor meter based on a EEVBlog forum topic. I finally got round to making my capacitor ESR tester this week after finding a nice simple 5 transistor version by EEVBlog member Jay_Diddy_B....
Continue Reading![iPhone Battery Charger / Tester iPhone Battery Charger / Tester](https://www.electronics-lab.com/wp-content/uploads/2016/08/iphone-charger_v2-2_4-1024x938.png)
iPhone Battery Charger / Tester
mozzwald.com has designed an iphone battery charger /tester. I have seen technicians often replace batteries when they may not necessarily need to be or ignore the fact that they could be the cause of the issue at hand. To remedy this I designed a basic iPhone battery charging...
Continue Reading![USB Cable Tester USB Cable Tester](https://www.electronics-lab.com/wp-content/uploads/2016/03/USB_TESTER.png)
USB Cable Tester
davedarko wanted an easy way to check a USB cable, so he created this project: A little ATtiny45, some LEDs and transistors – battery powered. It scans through the cable with some blinking LEDs, then goes to sleep. USB Cable Tester -...
Continue Reading![LED Tester with LCD Display LED Tester with LCD Display](https://www.electronics-lab.com/wp-content/uploads/2016/01/LED-Tester-ready-e1454059298124.jpg)
LED Tester with LCD Display
David @ robotroom.com build a microcontroller based LED tester with LCD display that shows the LED voltage, the current limit in mA, the desired led voltage and the calculated resistor value. The LED tester is based on ATtiny84 mcu which performs all the measurements and calculations...
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