2-Year Ultra Low-Power LED Flasher

In this Instructable, I am going to try and explain, step by step, how I designed this Ultra Low-Power LED Flasher with the following specification:
LED flash rate 1 flash per second
LED on-time of 5ms
At least 2 years battery life
Use standard “AA” size batteries
Unfortunately, uses two “AA” batteries
Easy obtainable components
No surface mount components
No PC Board
To keep track of this Instructable, I will be monitoring the views using my “Instructable Hit Counter”.”


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