May 24, 2024


Technology and Age

A Cold Light To Warm Your Heart

A 3d printed ghost next to the base of an LED tea light that has 4 LEDs poking out and the IR receiver port and micro-USB connector showing.

Halloween is coming quick and what far better way to increase to your Halloween ornamentation than [Wagiminator]’s adorable NeoCandle tea gentle simulator.

[Wagiminator] has modified a 3D printed ghost alongside with extending [Mark Sherman]’s light simulation code to produce a sweet mild that is perfect for the holiday season. The NeoCandle utilizes an ATtiny85 chip to power 4 WS2812 NeoPixel jelly bean LEDs. The device has an infrared (IR) receiver to be equipped to handle it from a distant that speaks the NEC protocol. There is a light-weight sensor that will allow the device to dim when it detects ambient mild and the full device is powered off of a micro-USB link.

The ATtiny85 have confined system flash and [Wagiminator] packs in a whole lot of operation in these types of a tiny deal, squeezing in a bit-banging NeoPixel driver in only 18 bytes of flash that can drive out a transfer level 762 kpbs to update the LEDs. The pseudo-random amount uses a Galois linear responses change sign-up and will come in at 86 bytes of flash, with the IR receiver implementation code remaining the most significant using 234 bytes of flash. The ATtiny85 alone has 8 KB of flash memory so it’s possible it is attainable to thrust [Waginminator]’s code to even much more restrictive Atmel units in the ATtiny family.

With microcontrollers and LEDs turning out to be so low-cost and ubiquitous, generating practical flames with them is starting to be obtainable, as we have observed with former assignments on electronic candles.