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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...
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.
Saber Board that is Proffie Firmware compatable, Larger in size, Includes integrated LiPo charger and Battery Protection Circutry.
Designed specifically to be assembled by EasyEDA stock parts.
4CH LED Full current control using 2xL7135 for 700mA (stackable to 3 for 1A) no need for external resistors
1 main Neopixel data line and 3 extra Neopixel or for accent leds
3.3v switchable power out for...
**555 timer based PWM LED dimmer**
This project uses PWM to turn on and off a LED (or a strip of them) really fast and changes the duty cycle (Fig.1) so that the human brain perceive it as the dimming of the LED(s). This means that the MOSFET doesn’t have to drop large amount of voltage, this makes the device very energy efficient.
Christmas tree ornament with (mostly) just a small number of through-hole components. Great for beginners. Might need a more experienced person to install the ATTiny841 and program it. There is an (optional) programming header to make in-circuit programming easy.
Unlike lots of other similar projects, the use of a micro-controller allows for smooth fading of the LEDs which makes for much more nat...
Water detector with 4 level stages. Each stage makes the 555 timer to give a supply period for the buzzer. The active buzzer transmits sound with a pause period between 0.5-3 seconds, depending on the level detected.