You may have remembered I started working on a binary clock project with the Arduino. There are two things I didn’t like about that project. First, the clock didn’t keep time. It ran about 37 seconds fast. Second, it required the use of almost all pins on the Arduino. I started working on a new binary clock project with the requirements that it kept accurate time, it didn’t use as many pins, and I could set the time. I sacrificed the addressable LEDs I had used for my Christmas Tree Lights and began to work on the new binary clock.Continue reading “Binary clock using Arduino, DS3231 real time clock, and WS2811 Addressable LEDs”
Sorry for the poor video quality. Because of the flash rate and the way a CMOS senor works, it cannot record the true effect.
This lightning effect uses addressable LEDs. The code generates a random number of flashes, a random brightness level for each flash, a random delay between flashes, and a random delay between the overall effect. See the code after the break.Continue reading “LED lightning effect using an Arduino”
I started work on a binary clock. I found some code by Dennis Cwik and tweaked it to be able to rapidly advance the time as a crude way to set the clock. What I don’t like about this build is it is using all the digital outs. I think I will rewrite it to use addressable LEDs instead. That will only use one digital out and I can do so much more and look better as well. But for now, here’s what I have.
In December, a friend approached me and asked if I could create a visual effect for him. The requirements are to flash a strobe light, activate only when someone is in front of the effect for a couple of seconds, and wait for the person to walk away before it can be activated again. It had to be hidden in a two-way mirror to illuminate a picture behind the glass.
Here’s the circuit I came up with. Unfortunately I never got to see it in action.Continue reading “Spooky Mirror”
I made some neat Christmas tree lights using an Arduino and WS2811 pixel LEDsContinue reading “Arduino WS2811 Pixel LED Christmas Tree Lights”
This was my very first Arduino project. A simple fake candle. It uses four LEDs: two orange and two red, two resistors, bits of wire, and a bread board. I also used the Arduino Uno I got from Sparkfun during one of the sales and I think I only paid $0.99 for it. I don’t have the sketch for it anymore, but I am sure I could easily recreate it.