Chronio – Low power Arduino based (smart)watch
https://www.electronics-lab.com/chronio-low-power-arduino-based-smartwatch/
Max.K @ hackaday.io designed his own impressive watch based on Atmega328p with Arduino bootloader, Maxim DS3231 (<2min per year deviation), 96×96 pixel Sharp Memory LCD (LS013B4DN04) and it’s powered by a CR2025 160mAh coin cell battery. Chronio is an Arduino-based 3D-printed Watch. By not including fancy Wifi and BLE connectivity, it gets several months of […]
AAduino – Arduino Wireless in AA form factor
https://www.electronics-lab.com/aaduino-arduino-aa-battery-holder/
Johan wanted to shrink his Arduino based ISM radio node to fit in an AA battery compartment so AAduino was born. The AAduino is an wireless Arduino clone the size of an AA battery with Keystone battery terminals rotated 180° to act as positive and negative terminals. It is powered by an ATMega328p and is […]
Temperature Display with NeoPixel Ring Color
https://www.electronics-lab.com/temperature-display-neopixel-ring-color/
This is an OLED temperature display based on ATmega328p along with a NeoPixel led ring to display different colors depending on temperature. This is a small temperature display using a OLED with a NeoPixel Ring around it using MQTT on a ESP8266 and sending data to the on board ATmega328p. It will cycle on a timer […]
Easy Arduino Menus for Rotary Encoders
https://www.electronics-lab.com/easy-arduino-menus-for-rotary-encoders/
SimonM83 has posted a new tutorial on how to implement an Arduino menu using a rotary encoder. The tutorial goes through the hardware setup and sample code is provided. Rotary encoders with centre-push buttons are cool input hardware for projects, especially if you want to be able to scroll through menus and select options. Hopefully […]
Getting Started With the ATMega328P
https://www.electronics-lab.com/getting-started-with-the-atmega328p/
Here is a detailed guide on how to get started with ATMega328P microcontroller. The guide goes in details on how to setup it on a breadboard and how to upload your first code on it. and blink a led. The real benefit of using this microcontroller is that it’s only $4 US, whereas many other […]
Weather Station Project with ATMEGA328P, DHT22, BMP180, BH1750 and a Nokia 5110 LCD
https://www.electronics-lab.com/weather-station-project-with-atmega328p-dht22-bmp180-bh1750-and-a-nokia-5110-lcd/
This is an Arduino powered Weather Station Project that can run on batteries for almost a year! In order to achieve that we use a bare ATMEGA328 chip along with some accurate sensors. We use the DHT22 temperature and humidity sensor, a BMP180 barometric pressure sensor, a BH1750 light intensity sensor and a Nokia 5110 […]
Home Built Bench Power Supply using ATMEGA328P
https://www.electronics-lab.com/home-built-bench-power-supply-using-atmega328p/
ianjohnston.com has designed a nice power supply based on ATMEGA328P and Arduino bootloader. The output is dual channel 0-24vdc @ 3A each, with preset constant current and independant voltage/current control. This isn’t a full design blog but I’ve tried to document/add stuff as I go along, the idea being I’ll put all design documentation (schematic, […]
How to burn an Arduino UNO bootloader to a new ATMEGA328P-AU chip
https://www.electronics-lab.com/how-to-burn-an-arduino-uno-bootloader-to-a-new-atmega328p-au-chip/
This video shows the steps to burn the bootloader from an Arduino UNO, to a new ATMEGA328P-AU chip. The new chips are the TQFP 32 type package. How to burn an Arduino UNO bootloader to a new ATMEGA328P-AU chip – [Link]
PCB Christmas tree
https://www.electronics-lab.com/pcb-christmas-tree/
Well, Christmas may over but we think you may take a look at this well designed PCB Christmas tree and why not consider building it for the next year. Since I already have an Arduino, and I felt pretty comfortable with it, I decided to use it to control the LEDs. However a full Arduino […]
A Tutorial For Launching Your First Balloon
https://www.electronics-lab.com/a-tutorial-for-launching-your-first-balloon/
Here is a nice tutorial about launching you first ballon into space. Also tracking device information is provided. Source is available here: There are a lot of reasons to put together a weather balloon launch. Its a great project for a STEM /STEAM class, it requires planning, electronics and programming, and teamwork. It has a […]