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Electro Bob
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Category: Projects

17 Comments

LED Logger V3

  By Bogdan March 15, 2015 February 8, 2017 Projects

Third iteration of my led logger, a device that measures the lifetime of LEDs. Now with WiFI! Continue reading

Tagged   atmel, AVR, data, data logger, enc, enc28j60, ESP, ESP8266, ethernet, inteneisty, internet, led, led logger, logger, lux, luxmeter, microchip, strip, wifi, ws2812, WS2812B, xmega
4 Comments

Stockie – item centric shopping list

  By Bogdan July 30, 2014 February 8, 2017 Projects

Wireless buttons that let you instantly add something to your shopping list. Like the Dash buttons, but invented before. Continue reading

Tagged   automated, connected, hackaday, hackadayprize, internet of things, iot, led, list, microcontroller, nrf, nrf24l1, openwrt, radio, router, shipping, smart, tag, tl-wr741, tp-link, web, wi-fi
15 Comments

Heatsink Tester

  By Bogdan January 11, 2014 February 8, 2017 Projects, Utils

How much heat can a heatsink dissipate? Automated tester with cool interface and graphs! Continue reading

Tagged   AVR, ds18b20, ds18s20, ds18x20, heat sink, heatsink, measure, resistance, sensor, temperature, thermal, xmega
4 Comments

LED logger V2

  By Bogdan December 21, 2012 February 8, 2017 Projects

How long do LED’s last? Let’s check their intensity and find out, featuring an internet connected tester! Continue reading

Tagged   atmel, AVR, cosm, data, data logger, enc, enc28j60, ethernet, inteneisty, internet, led, led logger, logger, lux, luxmeter, microchip, pachube, strip
13 Comments

Blue Panda

  By Bogdan December 21, 2012 February 8, 2017 Projects, Utils

Bringing bluetooth to this super cute panda speaker i got as a present. Continue reading

Tagged   audio, bluetooth, digital, panda. serioux, portable, portable speaker, speaker, wire, wireless
43 Comments

LED logger

  By Bogdan October 22, 2012 February 8, 2017 Ideas and Articles, Projects

Do LEDs really last as much as they say? I’m building a tester to find out. Continue reading

Tagged   arduino, breadboard, CFL, current, efficacy, intensity, led, ledstrip, light, lights, Nichia, strip, TSL2550, warm, warm white, white
24 Comments

Auto AMP

  By Bogdan August 25, 2012 February 8, 2017 Projects

Making an amplifier turn on only when there is signal present, to save power and effort. Continue reading

Tagged   amplifier, auto, automatic, decection, detect, off, on, power, signal, sound, threshold
5 Comments

Digital Power Supply – Part 2: Prototype

  By Bogdan February 19, 2012 February 8, 2017 Ideas and Articles, Projects

The first prototype of my digitally controlled power supply. Continue reading

Tagged   ADC, analog, comparator, DAC, digital, erros, loop, microcontroller, power, prototype, regulator, smps, supply, test, transformer, transistor, xmega, xmega32a4
15 Comments

Fun with LEDs

  By Bogdan January 5, 2012 February 8, 2017 Projects

Simple circuits to get night lights on the hallway and motion lights in the rest of the house. Continue reading

9 Comments

Upgrading spotlights to LED

  By Bogdan June 20, 2011 February 8, 2017 Projects, Utils

Turned my hallway spotlights to some nice LED lights. Continue reading

Tagged   halogen, ikea, led, light, orange, replace, spot
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