Simple AVR Bootloader tutorial
I've used AVR microcontrollers both for hobbies and work projects. These versatile microcontrollers ran the code I programmed them with, but once the final device was shipped, it was hard…
An IOT Swing
The new generations benefit of an advance over their predecessors. This is a simple equation that guarantees progress. For that I can do a simple comparison between the toys I…
Introduction to CC2541
Exploring the versatile AVR microcontrollers or the powerful STM32 counterparts were amazing experiences which resulted in interesting projects, many of them presented on this blog. For a hardware designer, the…
Featured by Atmel
Trained as a software developer I've been active in the field doing mostly mobile apps since 2003. My first contact with microcontrollers came later, in 2009, and I still remember…
Post Beta hardware iteration
For the Portable Environmental Monitor beta release, both the project summary and the system design document presented some of the things to improve next. The first PCB was fine, but…
Portable Environmental Monitor
The portable environmental monitor addresses pollution, the kind that we are unable to see but directly affects our health and causes life threatening diseases. Airborne toxic chemicals, radioactive dust and…
The first prototype
It's been a crazy run, trying to make this happen. After less then one month I now have the first functional hardware iteration or the first prototype. The Portable Environmental…
Resistive touchscreen
A complicated project July was a tough month, and August is no different. Due to some components arriving late, I've only been able to start my work on the Hackaday.io…
MiCS-VZ-89 Air Quality Sensor
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.
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.
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.…
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.
Atmega8 and Nokia 5110 LCD
A C++ Library for AVR microcontrollers that allows easy connectivity to the Nokia 3110/5110 graphical LCDs.
Dual H-Bridge for controlling two motors
Build a dual H-bridge board to control two motors.
How to set the AVR Fusebits
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 .
NMEA GPS Library for AVR Microcontrollers
An open source library that allows you to use a NMEA GPS Module with an AVR Microcontroller. UART Communication and NMEA Parser is included.
ATMega128 and HD44780 LCD using 3 Wires with the 74HC164
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!
Building a robot – Make the robot follow you
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.
DIY/Homemade Radiation Geiger Dosimeter
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.
BMP085 Barometric pressure sensor
The BMP085 is a compact, low power sensor for reading temperature, barometric pressure and altitude. See it in use with Atmel microprocessors.
Temperature and Humidity sensor DHT-22
DHT-22 is a small size, compact, dual temperature and humidity sensor featuring one-wire connectivity.
HC-SR04 Sonar with Atmega8 microcontroller
Build an ultrasonic sonar for non-contact distance measurements, using an Atmega8 and a HC-SR04
uRADMonitor – Online Radiation monitoring station
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.
Temperature Sensors DS18B20 and DHT11 with Atmega8
Use the Atmega8 with two temperature sensors: the DS18B20 and the DHT-11. The latter also offers relative humidity data.
Atmega8 and enc28J60 for ethernet support
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.
Capacitor Discharge Microspot Welder / Cutter
A DIY microspot soldering/welding/cutting device using energy stored in a very large capacitor delivered as precisely calculated pulses to working electrodes.