Low power timers for 6 hour on / 18 hours off in 24 hours time
Posted by jpluimers on 2023/04/14
Some notes, as in 2021, I started to see a lot of LED lights (often even LED string lights) being able to automatically do 6 hour on and 18 hour off in a 24 hour cycle to conserve battery usage and improve convenience.
Below are some links, as I might want to create such a circuit myself, maybe even with some solar charging. I’m especially interested to power these off 18650 Li-Ion batteries of which I wrote before (especially as you can easily salvage them from laptop or even e-bike battery packs).
Links via [Wayback/Archive] chip timer 6 hour per 24 hours – Google Search and [Wayback/Archive] microcontroller 6 hour on 18 off timer – Google Search:
- [Wayback/Archive] Timer for 1 hour duration every 23 hours? | All About Circuits
- [Wayback/Archive] Creating Cycle Timer that triggers Event Timer using 555 chips | All About Circuits
- [Wayback/Archive] 6-hour timer. Can someone help me? | Electronics Forum (Circuits, Projects and Microcontrollers)
- [Wayback/Archive] 2 Best Long Duration Timer Circuits Explained – Homemade Circuit Projects
- [Wayback/Archive] Who can program a PIC microcontroller for a simple timer?
- [Wayback/Archive] microcontroller – Building a 12 hour timer – Electrical Engineering Stack Exchange
- [Wayback/Archive] PIC18 Timers- Blink an LED with Timer0 – YouTube
- [Wayback/Archive] c – PIC18F timer for minutes and hours – Stack Overflow
- [Wayback/Archive] Electronics Projects Vol. 22 (With CD) – Google Books
- [Wayback/Archive] The Essential PIC18® Microcontroller – Sid Katzen – Google Books
- [Wayback/Archive] Project: Long Duration OFF Timer Circuit for LED’s – Page 1
- [Wayback/Archive] Low voltage and current LED on 6 hours / off 18 hours, repeat | All About Circuits
- [Wayback/Archive] Mysterious MCU? – Using Arduino / Microcontrollers – Arduino Forum
- [Wayback/Archive] Prototype stand-alone timer for Battery powered Xmas lights. – YouTube (based on a PIC12 microcontroller)
- [Wayback/Archive] Newer style timer controlled Christmas fairy lights. – YouTube (tear down of a commercial LED string package)
–jeroen
The Wiert Corner - irregular stream of stuff 
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