It has been a while since the last LED related article. Was experimented the linear current source, its pros and cons and the field of application. Now arises the need of a small version, handling the same high power, things that are contrapposed in the linear regulator. I need something that I can bring with … Continue reading Tiny, robust, low cost, fail-safe LED driver: the Glighter-S project
Projects
Current sources for LEDs – Glighter: a multichannel LED Driver
A power constant current source, high speed, for power LEDs. Taken all the errors made previously, I tried a new linear based current source which should be kept "simple" and "fast".
Current sources for LEDs: firsts DIY impressions
Recently I found that today almost lighbulbs are made with power LEDs. And surprisingly most of them are made so cheap that the controller fails far away before its lifetime. At least for what I've experienced with few models. Most of them seems to work well, and I think that LEDs are the future for … Continue reading Current sources for LEDs: firsts DIY impressions
DS1307 Real Time Clock hacking: the emulation
Maybe some of you knows well the so called GertDuino, an expansion board of the RaspberryPi. It is like an Arduino which can communicate with the Rasp, and moreover it also mount an Atmega48 which can be used to emulate an RTC. Yes, I'm going to talk about this. The challenge: proof-of-concept of commercial real … Continue reading DS1307 Real Time Clock hacking: the emulation
The classic hardware hacking: ATX power supply
If you like playing with lab instruments, enjoy to make things and design electronic stuff, you are probably attracted from the idea of create a new powerful (with some limitations) bench power supply by using an old ATX supply. Moreover, I need an high power supply to test my motors. For sure, building your own … Continue reading The classic hardware hacking: ATX power supply
Blink an LED over the internet: the begginer’s low level approach
In this article we continue our road to the IoT approached at a low level, or better, at bottom-up approach, that will be applied in the future to my UART interpreter. Here I will talk about how to drive an LED over the Internet. So as always I'm using Python libraries to get things done … Continue reading Blink an LED over the internet: the begginer’s low level approach
The anti-loud siren
What happens if some one try to piss off people and make them scream, and you can't calm down them? What happens if you are in a crowded environment where people start talking when they shouldn't? Or what happens if you are one of those people who talk constantly loud out, but wants to improve … Continue reading The anti-loud siren
ALEA 