Learn all about batteries in the latest episode of Adafruit Industries’ Circuit Playground — Ladyada and Adabot make a lemon battery! The show is based on the coloring book E is for Electronics.
We worked closely with the good folks at Arduino to bring you these Make: Special Edition Arduino Unos, now available in the Maker Shed! Functionally, they are identical to a regular Arduino Uno R3 (with SMD microcontroller) but feature exclusive Make branding to set them apart from the rest.
Over the last few months there have been a sudden rush of new micro-controller boards onto the market. A lot of that is down to Kickstarter and the appearance of a number slightly tweaked Arduino clones. A lot of them feature some sort of mesh networking, or other wireless capability. Here’s ten new boards that have just arrived, or are coming to market real soon, that you should maybe think about for your next project.
Chris Fenton’s 3D-printed mechanical computer can do simple calculations with the help of punch cards, also 3D-printed.
Stephen Richardson of Tangent Audio built the AZIZ light ring for his Bausch & Lomb stereo microscope. AZIZ is an LED microscope illuminator that I designed and built from scratch. It is designed around a Texas Instruments TLC59116 constant-current PWM LED driver chip, and an Atmel ATTiny1634 AZIZ has 64 LEDs, half super-bright and half […]
Today we’re launching a new video series: Making Fun with Jeff Highsmith. Jeff is a North Carolina-based maker who says he’s guided by curiosity and a passion for learning. He says his ideal project would lead him to learn new things, make good use of his existing skills, involve the creative use materials (too much MacGyver growing up), and result in a fun contrivance that the world has yet to see. He was introduced to electronics through amateur radio at age 11, but didn’t start the hard-core tinkering until his first son was born and he realized he wouldn’t be spending as much time outdoors hiking and backpacking. In the Making Fun video series, Jeff hopes to inspire folks to cultivate their own creativity by showing them how easy it is to make fun toys and gadgets. With two boys aged 3 and 5, he has toys on the brain, and most of his projects involve creating or enhancing play possibilities.
A diode made from a semiconductor can generate electricity in the presence of light. Instructables user nevdull shows how to generate a modest amount of power by arranging four 1N4148 diodes in parallel.
