Inside the tiny RFID chip that runs San Francisco’s race
Ken Shirriff teardowns an RFID chip used to track the time each runner took to run the race. At the beginning and end of the race, the runners cross special mats that contain antennas and broadcast ultra high frequency radio signals. The runner's RFID chip detects this signal and...
Continue ReadingWorld’s First 1,000-Processor Chip
by Andy Fell: A microchip containing 1,000 independent programmable processors has been designed by a team at the University of California, Davis, Department of Electrical and Computer Engineering. The energy-efficient “KiloCore” chip has a maximum computation rate of 1.78 trillion...
Continue ReadingSparkFun Battery Babysitter
The SparkFun Battery Babysitter is an all-in-one single-cell Lithium Polymer (LiPo) battery manager. It’s half battery charger, half battery monitor, and all you’ll ever need to keep your battery-powered project running safely and extensively. The Battery Babysitter features a...
Continue ReadingFull featured Arduino DSLR Intervalometer
by aniansh @ instructables.com: Have you ever felt like creating one of those city street time lapses that you see on the internet or recording the blooming of a flower through a time lapse or maybe create a night sky panorama of the milky way drifting in the background? Well, now...
Continue ReadingConventional Flow vs Electron Flow Explained
"baldengineer" explains which way the current flows. A couple of weeks ago I wrote about four current flow direction myths. As a follow up to that popular post, I decided to dedicate this month’s AddOhms electronics tutorial video to Current Flow. In episode #19, I tackle the...
Continue ReadingInside the SDS7012 Oscilloscope: Mainboard Analysis
Christer Weinigel has been tinkering with an OWON SDS7012 o’scope, including deciphering the device’s OS and even disassembling the bootloader. Now it’s time to dive in and examine the mainboard, physically, with many of the board’s sub-circuits explained. via...
Continue ReadingWireless Weather Station using Arduino Due, DHT22 sensor and NRF24L01+
educ8s.tv uploaded a new project on youtube. In this video we build a Wireless Weather Station using the fast and powerful 32bit Arduino Due board. We measure the temperature and the humidity with a couple of DHT22 sensors and we communicate with the remote sensor using the 2.4GHz...
Continue ReadingCount down timer for UV lamps using PIC16F887
Here is a countdown timer for UV exposure lamps @ cuteminds.com Here follows a simple count down timer useful for the production of pcbs using photoresist and UV lamps. We have used a pic 16F887 Microchip microcontroller; there are no particular reasons, we have simply used the...
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