I caught a heavy flu, this was realy sh** and boring :-(
Therefore I reanimated a older #throwie
project and assambled a few. I also pimped them a "little". Now they can do a little bit more than a normal #throwie
- blink only during night, powersave during day,
using the LED as light sensor.
- they not only blink, the can #morse
- Powersave mode, reducing the current during day and
between morsing down to 4.5µA
this all with the parts of a standard throwie (battery, LED, resistor, magnet) and only one part more - a standard #AVR
, a #ATTiny45
. An #ATTiny85
should also work, providing more RAM, means longer morse text ( #ATTiny45
= 22 chars).
This pimped #throwies
should work for around 35...40 days with a CR2032. With bigger batteries longer...
Code and blueprint you can get here:https://github.com/thogoh/light-sensity-morse-throwie
The foto shows them sitting in a epoxy resin, just hardening.
PS: after burning out - please remove and dispose them like batteries