Something different
Added 2021-09-02 22:19:43 +0000 UTCI bought this unit from a local farm store. It's clearly been on the shelf for a very long time, so I thought it would be good to explore it. (It cost about £20).
Comments
Dialog semiconductor have a similar (yet very different) chip for this application - with a nice application note AN-CM-316. Products like this also demonstrate well how broken the patent system is. There's no great leap involved, yet there are so many patents on these "inventions" because using a simple timer circuit to activate something "without human input" is something no-one else "skilled in the art" could possibly have thought of doing, obviously!
David Reader
2021-09-10 08:38:58 +0000 UTCLooks like it probably has the same circuit as those automatic air fresheners that has a 15/30/60m timer... Looking forward to checking this video out later :3
Spectrum DIY
2021-09-02 22:48:34 +0000 UTC
