5 ms·
If you just need it to blink at some interval, get a NE555 for a dime. Granted, you can almost get a microcontroller for that price…
by cluckindan 1y ago
If you just need it to blink at some interval, get a NE555 for a dime.
Granted, you can almost get a microcontroller for that price…
- dgacmu 1y agoYou actually can: The Puya PY32 ranges from about $0.08 on up (well, $0.15 if you only want to buy 5, but the cheapest one is $0.0959 in qty 200 and $0.0676 in qty 5000+). ARM Cortex m0 in a 10-pin ESSOP-10 surface mount package: https://lcsc.com/product-detail/Microcontrollers-MCU-MPU-SOC_PUYA-PY32F002AA15M6TU_C5292058.html?s_z=n_PY32 https://lcsc.com/product-detail/Microcontrollers-MCU-MPU-SOC... Kind of mind-blowing. 24mhz 32-bit computer for under a dime. But you'll learn more about the analog-ish world and not need to deal with SMD if you go the 555 route. And it'll save you power vs the astable monovibrator with NPN transistors.
- dccoolgai 1y ago555s are so much fun. It's bananas how much you can do with that chip and a few dirt-cheap resistors and capacitors. Make has a really nice little book where they walk you through some simple projects on a breadboard with 555s, transistors, etc. https://www.amazon.com/How-Use-Breadboard-Make-Handbook/dp/168045403X https://www.amazon.com/How-Use-Breadboard-Make-Handbook/dp/1...