A simple posture sensor

Here’s a simple cure for your posture and the back pain blues, a posture sensor by Wingman: The simplest distance sensors are ultrasonic or infrared sensors. I went with a SR-HC04 because it is cheap and sufficiently precise. There are no special requirements to the controller so I am using an Attiny85. A small piezo speaker provides acoustic […]

Hack your Valentine with HeartThrob

A geek love by Boris Landoni: Hack your Valentine with HeartThrob Today we present the perfect Valentine gadget: just shake it and it will turn on and crate incredible light animations. That will be cool for sure! We know that, as it’s Valentine’s Day, looking at the device described in this post you’ll be inclined to […]

Stepper motor bluetooth serial driver (Attiny85 & L293D)

Trandi blogged about his Stepper motor bluetooth serial driver project: How to put together a simple bluetooth driver for a nice little stepper motor (Mitsumi M35SP-11HPK) that I salvaged from an old Canon printer. It uses a small Attiny85 (the more I use them the more I love them ! :) ) programmed in Arduino, […]

Another project-a-week: ATtiny85 programming shield

This week Rwinscot shared his RickPAW ATtiny85 programming shield project in the forum: Saw a couple implementations of the ATtiny85 programmer on Instructables… and decided to roll my own. It’s bare-bones, but gets the job done. It works as a minimal Arduino shield and has headers for ‘jacking-in’ to the uC. Goals on this one are […]

RFID Multipass spoof using ATTiny85

Hudson from NYC Resistor was inspired by Beth’s avrfid.S project to try to build a replacement for the multiple HID Prox card he carried for work. Hudson notes that “Beth’s design is simultaneously a technical tour-de-force and an example of how badly we can abuse the Atmel chips.” The entire schematic consists of an ATTiny85 […]

Nomis: Simon game clone on ATTiny85

Christopher Woodall from HappyRobotLabs wrote in about his recent project, Nomis, a Simon clone made using an ATTiny85. It uses up 4 pins, 3 for LEDs and 1 for buttons (ADC input). The write up can be found here. Everything is completely open source (except for the EAGLE CAD limitations of course, which kind of […]