Differences

This shows you the differences between two versions of the page.

--- projects:blinker:work_logs:1_beginnings [2022/01/23 05:51] – tjhowse
+++ projects:blinker:work_logs:1_beginnings [2022/02/17 02:24] (current) – tjhowse
@@ Line 1: / Line 1: @@
 {{indexmenu_n>1}}
 [<6>]
+~~NOCACHE~~
 ====== The Beginnings ======
+===== 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.
@@ Line 7: / 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.
-The housing was designed to hold the electronics, potted into a cavity, and the glass window. The enclosure applies pressure to only the front and back flat faces of the window, avoiding any pressure on the sides, or any contact with the edges. A gasket seals the glass against the metal at the front. The gasket must be ductile and made of a noble (unreactive with the environment and the housing). Gold would be a good choice for this. Copper may work too. The enclosure will probably be made of Aluminium due to its chemical resilience.
+The housing was designed to hold the electronics, potted into a cavity, and the glass window. The enclosure applies pressure to only the front and back flat faces of the window, avoiding any pressure on the sides, or any contact with the edges. A gasket seals the glass against the metal at the front. The gasket must be ductile and made of a noble metal, unreactive with the environment and the housing. Gold would be a good choice for this. Copper may work too. The enclosure will probably be made of Aluminium due to its chemical resilience.
 Once the enclosure is clamped shut, using two bars and two bolts, or a vice, it will be welded closed along the seam.