Sharp GP2Y1010 dust sensor
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.
ESP8266 Troubleshooting
I got a few esp8266 modules back in 2014, shortly after they've been announced on HackaDay. I didn't have much time for them, being caught with other projects, up until…
ILI9341 touchscreen LCD Library
I got a few QVGA LCD's with resistive touchscreen for an ongoing project. All that was left to do was putting the driver code together. The LCD code part was…
Introduction to STM32 microcontrollers
Introduction to STM32 microcontrollers shows how to setup the ide and toolchain to edit and compile STM32 apps on a MacOS workstation.
Tube: LND-712 End Window Alpha-Beta-Gamma Detector
Pictures: An excellent miniature mica window Geiger tube, suitable for detecting Alpha, Beta and Gamma radiation. As of 2015, it was selected for the uRADMonitor D series of radiation detectors.…
Digital bench power supply
As a follow up to one of my earlier projects, the Variable regulated power supply, initially designed to deliver 0..30Volts at up to 10Amps, I have decided it was time…
Serial Digital to Analog converter (serial DAC)
Introduction We're used to Analog to Digital converters (ADC) in a variety of applications such as voltmeters, thermometers or various other sensors. Their purpose is translating a given signal to…
DIY Dosimeter Geiger Counter KIT1.0
Note: there is a newer version of this project, KIT1.1, see it here If I was to give this project a version number, the closest match would be the uRADMonitor…
Atmega8 UDP Client
As a follow-up to Radu's Atmega8 and enc28J60 for ethernet support article, I used the libraries to implement an ATmega8 UDP client using ENC28J60 that broadcasts a simple “Hello World”…
ILI9163 LCD Library
An open source code library for the ILI9163 LCD. Circuit diagram for connecting it to an ATmega128 and demo video are included.
Atmega128 Voodoo
Apparently I had no better inspiration on how to name this post. It all started with a nice sunny day, when I was in great shape for doing creative work.…
DIY AVR Development Board with Atmega128
Eagle diagrams and instructions for building a DIY Development board featuring the powerful Atmega128 microcontroller
Single Chip Computer
Learn how to create a single chip computer running BASIC.
3V to 400V regulated inverter for Geiger counters
A robust regulated high voltage supply, an inverter (boost converter / step-up) 3V to 400V for portable applications.
Electric Fence Circuit for perimeter protection
Two battery operated, portable, electric fence designs using 555 and 556 timers.
Small size High-Voltage regulated inverter
Build a battery operated, compact high voltage inverter for Nixie tubes, neon bulbs or Geiger counters.
555 Timer revisited
An article on the well known 555 timer and a few rather unknown applications.
DIY Geiger Dosimeter with external tubes SBM-20 and SI-29BG
An open source digital portable radiation dosimeter, with external connector for attaching various geiger tubes.
Tube: SI-29BG (CИ-29БГ) Sensitive Small Geiger Muller
The SI-29BG comes with a good size / sensitivity ratio. These tubes are suitable for detecting beta and gamma radiation.
CCD Radiation detectors
Mobile devices with embedded cameras can be used to detect x-rays.
The MQ-9B Combustible gas sensor
A quick test with the combustible gas sensor, MQ-9B and an atmega8 microcontroller.
Using a Rain sensor with AVR Microcontrollers
A simple rain sensor connected to an ATMega8, provides readings on the level of water detected on its surface.
UT50 NaI Scintillation probe
I met some great people today, and I also got a wonderful device for my ongoing experiments as a gift: The UT50 Scintillation probe, manufactured by SC ICPM SA Romania.…
AVR SDCard FAT support with FatFS
You've probably seen or done lots of cool microcontroller projects already, but did you ever consider adding permanent data storage to your projects? I did, and there are numerous advantages:…
Using FS1000A/XY-FST RF Radio module with AVRs
Wireless data transfer can be useful for a variety of projects. I stumbled upon a very low cost emitter+receiver modules pair, and planned to use it for some time now.…
Global radiation monitoring network
EDIT: there is a dedicated blog on this project, here. Make sure to follow it for latest news. A few days ago I announced my intention of creating my first…
First Kickstarter project is closing in!
Preparing for my first Kickstarter project . Let's make it happen!
Coil Winding machine counter with Atmega8 and Reed relay
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.
Victoreen CDV-717 Remote Gamma Survey dosimeter
The CDV-717 is a very high-range gamma radiation ionization chamber detecting instrument, manufactured by Victoreen back in 1964.
CDV-742 Dosimeter and CDV-750 Dosimeter Charger
The CDV-750-5b Dosimeter Charger is a self contained battery-operated instrument.