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Spring Contact Probes schematic

Microcontroller based Diode and Bipolar Junction Transistor (BJT) tester

Introduction Most of the digital multimeters these days have built-in features for testing diodes and sometimes transistors. The purpose of this project is to demonstrate a simple way to construct a testing device for diodes and bipolar junction transitors (BJTs) using a microcontroller. The testing algorithm is based on a simple fact that a working […]

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Single microcontroller based 12v to 230v inverter with intelligent battery charging Board

Single microcontroller based 12v to 230v inverter with intelligent battery charging

Single microcontroller based 12v to 230v inverter with intelligent battery charging (Made by me) Here I describe the circuit as: *single microcontroller/controller (ATMEGA16/32) *no op-amps, only chips are the micro, opto-couplers and regulator (7805) *low-battery/overload/short-circuit protection *thyristor controlled battery charger, using the MOSFET body diode as the AC-DC rectifier *charger maintains the battery voltage (top)

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PIC based WWVB clock Schematic

PIC based WWVB clock

Introduction There are many DIY versions of WWVB clock designs available on the web. Commercial “atomic” clocks are inexpensive and widely available, but I wanted to try my hand at designing one to gain insight into WWVB reception and to learn a little about programming a PIC microcontroller. My version is not the simplest available,

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PIC Based Message wand

PIC Based Message wand

The project uses flashing LEDs to present shot message in the air by swinging a wand around above the head. A perfboard is used to construct the circuit that is powered by 2 coin cells type CR2016. The power fluctuations from excessive load on the coin cells can be prevented using the electrolytic capacitor. A

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GIGABYTE delivers Cavium ARM based server boards

GIGABYTE delivers Cavium ARM-based server boards

GIGABYTE of Taiwan has produced a cache-coherent, dual socket ARM server board the MT70-HDO and its associated 2U rackmount the H270-T70. Based on the Cavium ThunderX ARMv8 processor, they accelerate GIGABYTE’s recent efforts to bring ARM-based server products to market thereby opening new doors for scale-out server workloads.Designed for the 48 cores ARMv8 2.5GHz ThunderX processor, the

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PIC10F200 based dice

PIC10F200 based dice

This page describes a PIC10F200-based electronic dice. The reason I made this was that I got a small corner left over when ordering a panel with a couple of other PCBs and thought I would rather use the corner for something fun than leave it unused, so I made a dice. The PCB is quite

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Two Channel PC Based Oscilloscope USB

Two-Channel PC Based Oscilloscope USB

Inroduction More and more experiments are now ‘PC-assisted.’ Also conventional acquisition systems are very expensive. Since portable  PCs are today common and a USB link is a better solutionhere we present an oscilloscope using USB port of the PC that operates at up to 10 kHz with ±16V input voltage. It has much more improved features than the PC-based oscilloscope . The oscilloscope uses IC

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PIC Based Oscilloscope Clock

PIC Based Oscilloscope Clock

For those are not into electronics, you must know that an oscilloscope has basically only one timebase to move the spot horizontally from left to right with the same intensity. The vertical deviation is function to the input voltage. You understand immediately that you can’t directly display 7 segment digits, because you can’t move the

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Ways to Select a Best Microcontroller for Microcontroller based Projects

Ways to Select a Best Microcontroller for Microcontroller based Projects

Do you know how to select the best microcontroller for microcontroller based projects? Selecting the proper microcontroller for a given application is one of the most critical decisions, which controls the success or failure of the task. There are different types of microcontrollers available and if you have decided on which series is to use,

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