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USB
0-20V Bargraph Voltmeter

0-20V Bargraph Voltmeter

0 – 20V LED Voltmeter kit displays the voltage of the source using 20 LED’s.

2 comments Tested
Geiger counter with SBM20 tube

Geiger counter with SBM20 tube

I “rebuild” my Geiger counter, the SBM-20 tube was initially inside the box, so, i have put this one inside a 32mm diam plastic tube, for more convenience, wired through a XLR3 cable.

30 comments Not Tested
12V Lead Acid Battery Voltage Monitor

12V Lead Acid Battery Voltage Monitor

This project is a 12V Lead Acid Battery Voltage Monitor Description 12V Lead Acid Battery Monitor is a simple project which tells you the voltage of your Lead acid battery visually with the help of 10 LED’s.

12 comments Tested
0-10V Voltage Monitor

0-10V Voltage Monitor

This project is a 0-10V Voltage Monitor.

8 comments Tested
Variable Range LED Voltmeter

Variable Range LED Voltmeter

This project is a Variable Range LED voltmeter.

2 comments Tested
Tiny DDS – Open source DDS generator

Tiny DDS – Open source DDS generator

This project is an open source (hardware & software) DDS generator, based on: smart TFT module, AD9834, LM7171 fast amplifier.

1 comment Tested
NiCad-NiMh Battery Monitor

NiCad-NiMh Battery Monitor

This project is a NiCad-NiMh Battery Monitor based on LM3914 IC Description The simple project can be used as test gear.

0 comments Tested
Advanced LC meter

Advanced LC meter

This project is an advanced LCR meter based on PIC16F690 microcontroller.

24 comments Tested
Simple LC meter

Simple LC meter

This project is a simple LC meter based on PIC16F682A mcu.

34 comments Tested
Thermocouple Type-K amplifier

Thermocouple Type-K amplifier

This project is a simple Thermocouple K-type amplifier based on AD595 IC.

0 comments Not Tested
Simple SMD LED tester

Simple SMD LED tester

This project is a simple LED tester and LED polarity checker.

6 comments Tested
TraId – Transistor Type & Polarity Identifier

TraId – Transistor Type & Polarity Identifier

TraId is a simple transistor tester and pinout identifier.

2 comments Not Tested