Adjustable Load powered by LT3080 Regulator
https://www.electronics-lab.com/adjustable-load-powered-by-lt3080-regulator/
Technoblogy has posted details about an adjustable load that provides a constant-current load for testing power supplies and batteries. It enables you to set the load current to up to 1.05A, using a potentiometer, and displays the current on a three-digit LED display controlled by an ATtiny84. The adjustable load can be used for more […]
TinyHVSP – High Voltage Serial Programmer based on ATtiny84
https://www.electronics-lab.com/tinyhvsp-high-voltage-serial-programmer-based-attiny84/
Stefan Wagner’s EasyEDA profile is definitely the go-to source for all things ATtiny. He’s built 10s of projects, some of which we have covered here, that are based on the tiny microcontrollers, and it only makes sense that one of his latest projects, called the TinyHVSP, is a tool to help with development using the […]
Nano Current Meter using ATtiny84
https://www.electronics-lab.com/nano-current-meter-using-attiny84/
David Johnson-Davies published another great tiny project. He writes: This project describes a simple low-current meter I devised to check the sleep current of different microcontroller circuits, such as ones based on AVR microcontrollers. It’s capable of measuring currents of between 10µA and 30nA with reasonable accuracy, using an ATtiny84 and a few other low-cost […]
Two-Digit Thermometer using ATtiny84 and a DS12B20
https://www.electronics-lab.com/two-digit-thermometer-using-attiny84-ds12b20/
David Johnson-Davies shared another nice tiny project. This time is a two digit thermometer based on ATtiny84 and DS12B20 1-Wire temperature sensor. It uses a DS12B20 1-Wire temperature sensor, and an ATtiny84 to drive the display and read the sensor. It’s just over 25mm square; about the size of a British 50 pence piece. The […]
Alcohol Unit Counter using ATtiny84
https://www.electronics-lab.com/alcohol-unit-counter-using-attiny84/
Another great little project is published by David Johnson-Davies and it’s about a circuit able to keep track of your alcohol intake. There seems to be a lot of discussion in the news currently about how much alcohol it’s safe to drink on a regular basis [1][2]. If you want help in monitoring your alcohol […]
Installing The Micronucleus Bootloader To An ATtiny Via Arduino
https://www.electronics-lab.com/installing-the-micronucleus-bootloader-to-an-attiny-via-arduino/
In order to be able to upload Arduino sketches directly to the ATtiny84 over USB without the need to use a programming device, Shawn Hymel, an electrical engineer at Sparkfun Electronics, had published a guide showing how to install the micronucleus bootloader, which supports virtual USB (V-USB), onto an ATtiny84 using Arduino. The Atmel AVR […]
Attiny2313 & Attiny84 V-USB Media Volume Control
https://www.electronics-lab.com/attiny2313-attiny84-v-usb-media-volume-control/
Rupert Hirst shares his thoughts on creating a V-USB based media volume control: Although you may think a rotary encoder is just a rotary encoder, when selecting one for a specific purpose such as a volume knob, the feel and quality can play a large part in your design decision. You only have to look […]
Programming an ATtiny with Arduino board
https://www.electronics-lab.com/programming-attiny-arduino-board/
This detailed tutorial shows how to program an ATtiny45, ATtiny85, ATtiny44 or ATtiny84 microcontroller using the Arduino software. The ATtiny45 or 85 is a great option for running simple Arduino programs: it’s small, cheap and relatively easy to use. It does, however, have some limitations relative to the ATmega328P on an Arduino Uno. There are […]
LED Tester with LCD Display
https://www.electronics-lab.com/led-tester-with-lcd-display/
David @ robotroom.com build a microcontroller based LED tester with LCD display that shows the LED voltage, the current limit in mA, the desired led voltage and the calculated resistor value. The LED tester is based on ATtiny84 mcu which performs all the measurements and calculations and updates the display. Build details on the link […]