General purpose MCUs built in to LEDs emulate candle flicker
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General purpose MCUs built in to LEDs emulate candle flicker
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Re: General purpose MCUs built in to LEDs emulate candle flicker
#2Once upon a time, on USENET, someone had a .sig that predicted one day computers would be cheap enough they'd come in cereal boxes and we'd throw them away.
That day appears to have arrived.
Re: General purpose MCUs built in to LEDs emulate candle flicker
#3Once upon a time, on USENET, someone had a .sig that predicted one day computers would be cheap enough they'd come in cereal boxes and we'd throw them away. That day appears to have arrived.
That happened way before. RFID cards for disposable public transportation tickets or those music greeting cards.
Re: General purpose MCUs built in to LEDs emulate candle flicker
#4It might be a myth, but I seem to remember the ASICs used to flicker older LED designs were often repurposed from audio greeting cards. The light was actually just Happy Birthday playing through an LED or bulb rather than a speaker.
Re: General purpose MCUs built in to LEDs emulate candle flicker
#5I hope there is a follow up where the LED is ground down and a PICKIT2 is used to read out the code :)
Re: General purpose MCUs built in to LEDs emulate candle flicker
#6Once upon a time, on USENET, someone had a .sig that predicted one day computers would be cheap enough they'd come in cereal boxes and we'd throw them away. That day appears to have arrived.
The worst offenders right now might be disposable vapes. I saw some sold with effing lcd screens built-in. For a disposable piece of crap.
Re: General purpose MCUs built in to LEDs emulate candle flicker
#7If you want to see some candle flicker code based on a PIC12F508 or 9 see below.
The flicker effect is based on a linear feedback shift register function to provide a pseudo random effect.
Re: General purpose MCUs built in to LEDs emulate candle flicker
#8Once upon a time, on USENET, someone had a .sig that predicted one day computers would be cheap enough they'd come in cereal boxes and we'd throw them away. That day appears to have arrived.
The worst offenders right now might be disposable vapes. I saw some sold with effing lcd screens built-in. For a disposable piece of crap.
The rechargeable lithium batteries in those really doesn't fit the "lithium shortage" and "we don't have enough battery capacity to build an EV for everyone" narrative
Re: General purpose MCUs built in to LEDs emulate candle flicker
#9Once upon a time, on USENET, someone had a .sig that predicted one day computers would be cheap enough they'd come in cereal boxes and we'd throw them away. That day appears to have arrived.
That happened way before. RFID cards for disposable public transportation tickets or those music greeting cards.
At a certain point it's more about the semantics of what a "computer" is. I don't know if I'd count an ASIC from a musical greeting card, though; and even within general purpose devices, microcontrollers vs microprocessors are typically delineated by the presence of an MMU.
Re: General purpose MCUs built in to LEDs emulate candle flicker
#10If you want to see some candle flicker code based on a PIC12F508 or 9 see below. The flicker effect is based on a linear feedback shift register function to provide a pseudo random effect. https://github.com/linker3000/CandleFlameSim
Going to drop this here:
“Reverse engineering” a real candle
https://cpldcpu.wordpress.com/2016/01/05/reverse-engineering...