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Portable Environmental Monitor
Posted inElectronics Hardware

Portable Environmental Monitor

Posted by By Radu Motisan August 12, 2015
The portable environmental monitor addresses pollution, the kind that we are unable to see but…
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The first prototype
Posted inElectronics Hardware Nuclear

The first prototype

Posted by By Radu Motisan August 7, 2015
It's been a crazy run, trying to make this happen. After less then one month…
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A true hacker makes his own PCBs
Posted inElectronics Hardware

A true hacker makes his own PCBs

Posted by By Radu Motisan August 6, 2015
A true hacker makes his own PCBs. Dual layer. And in the kitchen. Why so?…
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Resistive touchscreen
Posted inElectronics Hardware

Resistive touchscreen

Posted by By Radu Motisan August 6, 2015
A complicated project July was a tough month, and August is no different. Due to…
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MiCS-VZ-89 Air Quality Sensor
Posted inElectronics Hardware

MiCS-VZ-89 Air Quality Sensor

Posted by By Radu Motisan July 31, 2015
The MiCS-VZ-89 Air Quality Sensor can detect carbon dioxide and volatile organic compounds. This article shows how to access its readings via I2C.
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Sharp GP2Y1010 dust sensor
Posted inElectronics Hardware

Sharp GP2Y1010 dust sensor

Posted by By Radu Motisan July 31, 2015
The Sharp GP2Y10 dust sensor can detect dust in air using the reflected infrared light, including very fine smoke particles. See how to use it with a microcontroller.
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Tube: SBT-9 End Window Geiger tube
Posted inHardware Tubes

Tube: SBT-9 End Window Geiger tube

Posted by By Radu Motisan July 29, 2015
Pictures: This is a rare Geiger Muller tube with a mica end window that allows…
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ESP8266 Troubleshooting
Posted inElectronics Hardware

ESP8266 Troubleshooting

Posted by By Radu Motisan July 29, 2015
I got a few esp8266 modules back in 2014, shortly after they've been announced on…
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ILI9341 touchscreen LCD Library
Posted inElectronics Hardware

ILI9341 touchscreen LCD Library

Posted by By Radu Motisan July 23, 2015
I got a few QVGA LCD's with resistive touchscreen for an ongoing project. All that…
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Introduction to STM32 microcontrollers
Posted inElectronics Hardware

Introduction to STM32 microcontrollers

Posted by By Radu Motisan July 14, 2015
Introduction to STM32 microcontrollers shows how to setup the ide and toolchain to edit and compile STM32 apps on a MacOS workstation.
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Tube: LND-712 End Window Alpha-Beta-Gamma Detector
Posted inElectronics Hardware Nuclear Tubes

Tube: LND-712 End Window Alpha-Beta-Gamma Detector

Posted by By Radu Motisan July 5, 2015
Pictures: An excellent miniature mica window Geiger tube, suitable for detecting Alpha, Beta and Gamma…
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Digital bench power supply
Posted inElectronics Hardware

Digital bench power supply

Posted by By Radu Motisan April 8, 2015
As a follow up to one of my earlier projects, the Variable regulated power supply,…
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Serial Digital to Analog converter (serial DAC)
Posted inElectronics Hardware

Serial Digital to Analog converter (serial DAC)

Posted by By Radu Motisan April 8, 2015
Introduction We're used to Analog to Digital converters (ADC) in a variety of applications such…
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Comparison of dosimeters
Posted inHardware Nuclear Reviews

Comparison of dosimeters

Posted by By Radu Motisan April 3, 2015
Like with all measurements, it will be very hard to find two different devices indicating…
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DIY Dosimeter Geiger Counter KIT1.0
Posted inElectronics Hardware Nuclear Software

DIY Dosimeter Geiger Counter KIT1.0

Posted by By Radu Motisan March 8, 2015
Note: there is a newer version of this project, KIT1.1, see it here If I…
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Atmega8 UDP Client
Posted inElectronics Hardware

Atmega8 UDP Client

Posted by By Hesam Ahmadi February 21, 2015
As a follow-up to Radu's Atmega8 and enc28J60 for ethernet support article, I used the…
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ILI9163 LCD Library
Posted inElectronics Hardware

ILI9163 LCD Library

Posted by By Radu Motisan February 14, 2015
An open source code library for the ILI9163 LCD. Circuit diagram for connecting it to an ATmega128 and demo video are included.
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Tube: SBM-21 (СБМ-21) Miniature Geiger Muller
Posted inHardware Tubes

Tube: SBM-21 (СБМ-21) Miniature Geiger Muller

Posted by By Radu Motisan February 11, 2015
The SBM-21 Geiger tube offers relatively good sensitivity especially when compared to its ultra compact size.
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Tube: STS-5 (СTC-5) Geiger tube
Posted inHardware Tubes

Tube: STS-5 (СTC-5) Geiger tube

Posted by By Radu Motisan February 11, 2015
The STS-5 is a geiger tube for hard beta and gamma detection, manufactured in USSR in the 60's, similar in specs to the newer SBM-20.
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Atmega128 Voodoo
Posted inElectronics Hardware

Atmega128 Voodoo

Posted by By Radu Motisan February 9, 2015
Apparently I had no better inspiration on how to name this post. It all started…
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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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Tube: SI-3BG (CИ-3БГ) Small Geiger Muller
Posted inHardware Nuclear Tubes

Tube: SI-3BG (CИ-3БГ) Small Geiger Muller

Posted by By Radu Motisan January 16, 2015
SI-3BG Geiger tube is suitable for detecting high radiation doses, but finds little use in DIY applications.
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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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Tube: SI-22G (CИ-22Г) Sensitive Geiger Muller
Posted inHardware Tubes

Tube: SI-22G (CИ-22Г) Sensitive Geiger Muller

Posted by By Radu Motisan October 18, 2014
Pictures: Details: The SI-22G is a highly sensitive hard beta and gamma radiation detector tube,…
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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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3V to 400V regulated inverter for Geiger counters
Posted inElectronics Hardware High Voltage Nuclear

3V to 400V regulated inverter for Geiger counters

Posted by By Radu Motisan July 18, 2014
A robust regulated high voltage supply, an inverter (boost converter / step-up) 3V to 400V for portable applications.
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Google Tango Hackathon in Timisoara
Posted inAndroid Hardware Research Reviews Robotics Software

Google Tango Hackathon in Timisoara

Posted by By Radu Motisan May 3, 2014
Some impressions on the Google Tango Hackathon held in Timisoara in April 2014. See one of the Winner projects, the Camera 3D and some insight on the new device from Google.
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Electric Fence Circuit for perimeter protection
Posted inElectronics Hardware High Voltage

Electric Fence Circuit for perimeter protection

Posted by By Radu Motisan April 15, 2014
Two battery operated, portable, electric fence designs using 555 and 556 timers.
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Small size High-Voltage regulated inverter
Posted inElectronics Hardware High Voltage

Small size High-Voltage regulated inverter

Posted by By Radu Motisan March 16, 2014
Build a battery operated, compact high voltage inverter for Nixie tubes, neon bulbs or Geiger counters.
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555 Timer revisited
Posted inElectronics Hardware High Voltage

555 Timer revisited

Posted by By Radu Motisan December 6, 2013
An article on the well known 555 timer and a few rather unknown applications.
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