I was frustrated by trying to remember my passwords for all my websites and got even more frustrated when i need to change a password again after some months. Dont even to mention the needed complexity of them nowadays. A bit insired by the mooltipass featured on hackaday, but too scared of the complexity and […]
This is an AVR ATmega328 based CO2, temperature and humidity logger and meter. It logs data feed, CO2 in air in terms of ppm, temperature and humidity to a xively.com feed. It also display realtime data to user through a 16×2 characters LCD. This logger it is based on the xively logger you can found here: http://davidegironi.blogspot.it/2014/12/a-web-configurable-xively-logger-build.html User can setup the ethernet
CO2 meter and Xively logger with NDIR infrared sensor built on AVR ATmega328 Read More »
A ULP (User Language Program) is a feature designed into EAGLE to allow users to generate their own processes to automate tasks that would otherwise be tedious and time consuming. While most users know that this functionality exists, very few want to write their own script. A casual user would have to dump far more
EAGLE ULPs Every User Should Know Read More »
Atmel Expands Ultra-low Power SAM G ARM Cortex M4 MCU Portfolio for Wearables and Sensor Hub Management New SAM G54/G55 Series Deliver Industry’s Smallest Form Factor, Ultra-low Power and Highest Performance for Rapidly Growing Internet of Things Market Including SoC Solutions for Wearables and Sensor Hub Management SAN JOSE, Calif., Jan. 5, 2015 /PRNewswire/ —
Two new MCUs from Atmel Read More »
Idea Build a cheap and simple full software controlled step-up (boost) converter to drive a LED string of 10 LEDs. LEDs are used as string to light up a acrylic engraved plate placed in a holder (also made out 5 layers of lasered black acrylic glas). Step up is from 5V to about 30V, current
LED step-up converter with ATtiny85 Read More »
Higher RF power, GMSK modulation and extra low power consumption make a new communication module interesting even for rough conditions. At cars, chip-tuning usually results in a higher power of a motor. Even the new communication module (transceiver) TR72D from IQRF has passed such „chip-tuning“ of RF portion, resulting in a higher max. RF output
IQRF module TR72D communicates at up to 600m distance Read More »
The Clapper was a popular gadget in the 80’s and 90’s. It let you turn appliances on and off just by clapping. This can be pretty useful, but it has some limitations. First there is the problem of loud noises accidentally turning the lights off. Also, you can’t control multiple outlets independently of each other.
Sound Activated Outlet Read More »
Lacking of proper development board always poses huge resistance for me to jump onto a new MCU. Even with the most prototyping friendly DIP packages, wiring a programming header onto the breadboard is both troublesome and unreliable. Things become worse when the MCU is an AVR. There is absolutely no way to mount a 2×3 0.1in pitch
Minimalism AVR development board Read More »
MCUs offer a very wide range of Ethernet connectivity choices. With most applications demanding Internet connectivity, it’s more likely than not that your next MCU-based design will need some type of network connection. Whether your next design is a sensor that needs to consolidate and communicate data over an Ethernet link, a network-connected security camera
Understanding and Using Ethernet-enabled MCUs for Your Next Application Read More »
Back when I was only starting to dabble in electronics, I needed a project that would meet the following requirements: simple to make; original (i.e. done entirely by myself from scratch); containing a microcontroller; and maybe the most important of all, useful. I’ve had enough devices I assembled just to dismantle the whole thing a
Infrared remote controlled light switch with ATTiny2313 Read More »
