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By Arduino nano, control RGB5050 light colorful scroll.
From S1 to S4 was then performed, four buttons to control the beam of the rolling way, and switch to a different jumper mode, can display different colors of lig...
Repurposing an old laptop power supply (18vdc) and dozens (actually - hundreds...) of white LEDs from old solar powered Christmas lights, to build an illuminated 'Merry Christmas' sign (a la Big Clive's Arcade sign).
The LEDs are made into strings of 5, each with a current limiting resistor, and a switching transistor to control the string. The transistors are switched from the outputs of multip...
This is a second version of Christmas Tree Controller. It is using Arduino Pro Mini and two TLC5940
For LED wiring refer to "Christmas Tree LED Wiring" project, LED v2
PCBs is just for reference. I didn't order/made one.
Program for Arduino is not ready yet. I will publish it as attachment or provide a link later.
Autre version du projet de Al Kri (cf. groupe Cyrob sur Facebook)
Barre de 10 LED utilisant un CD4017 (un compteur 10). **Il y a de 1 à 10 LED d'allumées en même temps et non 1 à la fois.**
Le NE555 sert à fournir une horloge. Les valeurs données permettent de générer un signal d'environ 10Hz.
Les valeurs des résistances au niveau des LED et des transistors de sorties sont données au pif, il fa...
LED Music Spectrum generates the beautiful lighting pattern according to the intensity of music. It contains many RGB LEDs which not only turns on and off as per the music but also change color according to the music.
Here is a Music Spectrum using NeoPixel RGB LED Matrix and ARM microcontroller.
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Yet another poi based on APA102 led strip.
STM32 RGB generic control module (the one found on the cheap online retailers). Paths and some parts may not be accurate as they do vary, but the schematic was recreated based on the P9813 datasheet for the +12V power source. Note that this chip takes in power from 9V all the way up to 30V or so (check datasheet for specifics), and that the paths/chip locations are not perfectly representative of...