projects:blinker:work_logs:1_beginnings
Differences
This shows you the differences between two versions of the page.
Both sides previous revisionPrevious revisionNext revision | Previous revision | ||
projects:blinker:work_logs:1_beginnings [2022/01/23 00:09] – tjhowse | projects:blinker:work_logs:1_beginnings [2022/02/17 02:24] (current) – tjhowse | ||
---|---|---|---|
Line 1: | Line 1: | ||
{{indexmenu_n> | {{indexmenu_n> | ||
- | ====== The beginnings | + | [< |
- | I stalled out on the [[projects: | + | ~~NOCACHE~~ |
- | + | ====== The Beginnings | |
- | Several years passed and I scaled back my ambitions. I decided I would make the enclosure out of metal, with a glass window for light to get in and hit the solar panel to provide energy for the system. Output would e via a single LED that would blink Morse coded messages. | + | ===== The Plan ===== |
I want it to be very reliable, which means as few points of failure as possible. The initial versions will have a very simple, inefficient circuit. I plan to use supercapacitors for the storage, for their long life. Ideally the solar panel would produce a voltage no higher than the rated voltage of the supercaps. | I want it to be very reliable, which means as few points of failure as possible. The initial versions will have a very simple, inefficient circuit. I plan to use supercapacitors for the storage, for their long life. Ideally the solar panel would produce a voltage no higher than the rated voltage of the supercaps. | ||
Line 9: | Line 9: | ||
I'm planning to use an attiny10 to blink the LED. It can run happily down to 1.7v, and only uses a tiny amount of power. | I'm planning to use an attiny10 to blink the LED. It can run happily down to 1.7v, and only uses a tiny amount of power. | ||
- | The housing was designed to hold the electronics, | + | The housing was designed to hold the electronics, |
Once the enclosure is clamped shut, using two bars and two bolts, or a vice, it will be welded closed along the seam. | Once the enclosure is clamped shut, using two bars and two bolts, or a vice, it will be welded closed along the seam. | ||
Line 15: | Line 15: | ||
===== The code ===== | ===== The code ===== | ||
- | The attiny10 is very tiny, only 1kB of flash and no EEPROM. The code that blinks the LED and the pattern for the blinking must share the same 1kB of space. | + | The attiny10 is very tiny, only 1kB of flash and no EEPROM. The code that blinks the LED and the pattern for the blinking must share the same 1kB of space. |
+ | [<6>] |
projects/blinker/work_logs/1_beginnings.1642896583.txt.gz · Last modified: 2022/01/23 00:09 by tjhowse