this post was submitted on 17 Aug 2023
9 points (100.0% liked)

Ask Electronics

3315 readers
1 users here now

For questions about component-level electronic circuits, tools and equipment.

Rules

1: Be nice.

2: Be on-topic (eg: Electronic, not electrical).

3: No commercial stuff, buying, selling or valuations.

4: Be safe.

founded 1 year ago
MODERATORS
DavideAndrea@discuss.tchncs.de
linker3000@discuss.tchncs.de
9
Attiny85 the right choice for 24h led timer? (lemmy.world)
submitted 1 year ago by P03@lemmy.world to c/askelectronics@discuss.tchncs.de
6 comments fedilink hide all child comments
 

My wife gifted me this super cute mini miffy diorama from a gachapon. It uses two 1,5V cells and has a tiny led in it. I would really love to to add a 24h timer. ( it should stay on for 4 hours after turning it on then go to "standby" for 20h before turning back on) Do you guys think an attiny85 is the right thing for the job? Sorry of the question is dumb in any way. I am absolutely not an electronics guy.

you are viewing a single comment's thread
view the rest of the comments
[–] Goodman@discuss.tchncs.de 1 points 1 year ago

You could go with an DS1339 which is an RTC with two programmable time of day alarms. If you only need timing you might as well do that. But if electronics isn't really your thing then just add a bigger battery for the attiny85, make sure to run it at it's lowest clock speed.