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DIY AVR Development Board with Atmega128
Posted inElectronics Hardware

DIY AVR Development Board with Atmega128

Posted by By Radu Motisan February 7, 2015
Eagle diagrams and instructions for building a DIY Development board featuring the powerful Atmega128 microcontroller
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The AVR Watchdog
Posted inHardware

The AVR Watchdog

Posted by By Radu Motisan January 15, 2015
The AVR Watchdog is an essential mechanism to protect long term run applications from code freezes affecting their functionality.
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Single Chip Computer
Posted inElectronics Hardware

Single Chip Computer

Posted by By Radu Motisan October 17, 2014
Learn how to create a single chip computer running BASIC.
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The MQ-9B Combustible gas sensor
Posted inElectronics Hardware

The MQ-9B Combustible gas sensor

Posted by By Radu Motisan October 30, 2013
A quick test with the combustible gas sensor, MQ-9B and an atmega8 microcontroller.
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UT50 NaI Scintillation probe
Posted inElectronics Hardware High Voltage Nuclear

UT50 NaI Scintillation probe

Posted by By Radu Motisan August 7, 2013
I met some great people today, and I also got a wonderful device for my…
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AVR SDCard FAT support with FatFS
Posted inElectronics Hardware

AVR SDCard FAT support with FatFS

Posted by By Radu Motisan August 2, 2013
You've probably seen or done lots of cool microcontroller projects already, but did you ever…
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Using FS1000A/XY-FST RF Radio module with AVRs
Posted inElectronics Hardware

Using FS1000A/XY-FST RF Radio module with AVRs

Posted by By Radu Motisan July 31, 2013
Wireless data transfer can be useful for a variety of projects. I stumbled upon a…
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Global radiation monitoring network
Posted inElectronics Hardware Nuclear Software

Global radiation monitoring network

Posted by By Radu Motisan July 11, 2013
EDIT: there is a dedicated blog on this project, here. Make sure to follow it…
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Coil Winding machine counter with Atmega8 and Reed relay
Posted inElectronics Hardware

Coil Winding machine counter with Atmega8 and Reed relay

Posted by By Radu Motisan May 25, 2013
A digital counter with a nice LCD display that supports both incrementing and decrementing. Good for various purposes, in this case as a display to a coil winding machine.
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Atmega8 and Nokia 5110 LCD
Posted inElectronics Hardware

Atmega8 and Nokia 5110 LCD

Posted by By Radu Motisan April 8, 2013
A C++ Library for AVR microcontrollers that allows easy connectivity to the Nokia 3110/5110 graphical LCDs.
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Detecting an ultrasonic beacon
Posted inElectronics Hardware

Detecting an ultrasonic beacon

Posted by By Radu Motisan April 7, 2013
How to build an ultrasound beacon and the corresponding receiver.
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How to set the AVR Fusebits
Posted inElectronics Hardware

How to set the AVR Fusebits

Posted by By Radu Motisan March 11, 2013
Learn how to set your atmega to work with various external crystals, program the fusebits, and build a fusebit doctor to revive your AVRs, in case you wrote the wrong settings .
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ATMega128 and HD44780 LCD using 3 Wires with the 74HC164
Posted inElectronics Hardware Robotics

ATMega128 and HD44780 LCD using 3 Wires with the 74HC164

Posted by By Radu Motisan February 21, 2013
Learn how to transform your HD44780 LCD into a easy to use, serial LCD, that you can connect to your microcontroller using only 3 wires! It's time to save a few pins, and expand your project's functionality!
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Building a robot – Make the robot follow you
Posted inElectronics Hardware Robotics

Building a robot – Make the robot follow you

Posted by By Radu Motisan February 7, 2013
Building an autonomous robot using a rover platform and advanced electronics is not an easy job. Kevin asked me to build a robot that would follow its user. A companion, very much like a robo-dog. See the project log here.
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DIY/Homemade Radiation Geiger Dosimeter
Posted inElectronics Hardware Nuclear

DIY/Homemade Radiation Geiger Dosimeter

Posted by By Radu Motisan December 1, 2012
A digital dosimeter design that can be used with multiple geiger tubes, constructed around the atmega8 microcontroller and a 2x16 LCD. Equipped with a radio Bluetooth module for remote operation.
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BMP085 Barometric pressure sensor
Posted inElectronics Hardware

BMP085 Barometric pressure sensor

Posted by By Radu Motisan November 11, 2012
The BMP085 is a compact, low power sensor for reading temperature, barometric pressure and altitude. See it in use with Atmel microprocessors.
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uRADMonitor – Online Radiation monitoring station
Posted inElectronics Hardware Nuclear Research

uRADMonitor – Online Radiation monitoring station

Posted by By Radu Motisan October 21, 2012
I've developed the uRADMonitor as an Environmental Radiation Surveillance automated monitoring device. Data is gathered in real time, 24/7, and is exported via the Internet to a database online. The data is available in customizable charts for analysis.
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DIY/Homemade Geiger Muller Digital Counter V3
Posted inElectronics Hardware High Voltage Nuclear Tubes

DIY/Homemade Geiger Muller Digital Counter V3

Posted by By Radu Motisan October 11, 2012
A story of making a DIY Digital Geiger counter circuit, that can be used with several tubes. Add an enc28j60 Ethernet module and use the data to create graphs available online!
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Temperature Sensors DS18B20 and DHT11 with Atmega8
Posted inElectronics Hardware

Temperature Sensors DS18B20 and DHT11 with Atmega8

Posted by By Radu Motisan October 7, 2012
Use the Atmega8 with two temperature sensors: the DS18B20 and the DHT-11. The latter also offers relative humidity data.
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Atmega8 and enc28J60 for ethernet support
Posted inElectronics Hardware

Atmega8 and enc28J60 for ethernet support

Posted by By Radu Motisan July 30, 2012
Learn how to create a network interface for your microcontroller projects. Here I have shown an example using the Atmega8 and the enc28j60 . Build a simple Webserver to show sensor data such as temperature or humidity.
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Capacitor Discharge Microspot Welder / Cutter
Posted inElectronics Hardware

Capacitor Discharge Microspot Welder / Cutter

Posted by By Radu Motisan July 15, 2012
A DIY microspot soldering/welding/cutting device using energy stored in a very large capacitor delivered as precisely calculated pulses to working electrodes.
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USBAsp –  AVR USB Programmer
Posted inElectronics Hardware

USBAsp – AVR USB Programmer

Posted by By Radu Motisan May 2, 2012
A good source for cheap AVR USB Programmers. USBasp modules.
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Vacuum tube tesla coil (VTTC) using Russian GI-30
Posted inElectronics Hardware High Voltage

Vacuum tube tesla coil (VTTC) using Russian GI-30

Posted by By Radu Motisan April 11, 2011
A vacuum tube tesla coil built around the Russian tetrode GI-30. My first VTTC and my first vacuum tube circuit, and some very rewarding results.
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Multitester using ATMega8 and HD44780 LCD
Posted inElectronics Hardware

Multitester using ATMega8 and HD44780 LCD

Posted by By Radu Motisan December 12, 2010
An Atmega8 multimeter that can measure Transistors: Bipolar/Mosfet , Diodes and Double Diodes , Resistors, Capacitors: between 0.2nF to 7300μF, Triacs and Thyristors.
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NaI Scintillation Probe and Gamma Spectroscopy
Posted inElectronics Hardware High Voltage Nuclear Optics

NaI Scintillation Probe and Gamma Spectroscopy

Posted by By Radu Motisan November 29, 2010
A scintillation probe enclosing the regulated high voltage supply, the signal amplifier, the photomultiplier and the scintillation crystal (NaI). Building a DIY counter for a NaI Scintillation probe. AtMega8 and a bluetooth module for wireless data output. A cheap and easy to build homemade dosimeter with applications in spectroscopy.
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Android Bluetooth controlled robot – Part 1
Posted inAndroid Electronics Hardware Research Robotics Software

Android Bluetooth controlled robot – Part 1

Posted by By Radu Motisan November 1, 2010
Learn to connect a bluetooth module to an ATMega micro controller via the UART serial interface and even further, discover it using a bluetooth enabled Android phone. The 9600bps serial link established, can than be used to exchange data: read sensors or control the robot.
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Kvarts DRSB-01 Dosimeter
Posted inElectronics Hardware Nuclear Reviews

Kvarts DRSB-01 Dosimeter

Posted by By Radu Motisan August 11, 2010
The DRSB-01 is a simple Geiger Counter device that can be used to detect normal vs. dangerous levels of ionizing radiation (gamma and beta).
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Variable regulated power supply
Posted inElectronics Hardware

Variable regulated power supply

Posted by By Radu Motisan February 21, 2010
A variable 0..30V power supply for max 20ampers! See how to handle all the power and build your own reliable lab power supply.
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ATMega8 LCD Game
Posted inElectronics Hardware

ATMega8 LCD Game

Posted by By Radu Motisan October 17, 2009
Create a simple game board and write a little software game for your ATMega8 LCD board.
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ATmega8 and Hall Sensor A1302
Posted inAndroid Electronics Hardware Research

ATmega8 and Hall Sensor A1302

Posted by By Radu Motisan October 16, 2009
Atmega8 and an A1302 Hall Sensor for sensing the magnetic fields in close proximity.
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