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=== [[Sun Tracker or Irrigation Timer to drive motors]] === | === [[Sun Tracker or Irrigation Timer to drive motors]] === | ||
This is using two LEDs to sense the sun and send +- or -+ logic signals | This is using two LEDs to sense the sun and send +- or -+ logic signals | ||
− | to a full bridge motor driver. You could | + | to a full bridge motor driver like L298 or http:/www.redrok.com 3X schematic. I bought his. I recommend it. I changed the front end |
− | to turn on an irrigation motor for a very short time every | + | logic to 4060 and 4011 ICs here, for fun. You could use this circuit |
− | + | to turn on an irrigation motor for a very short time every few hours | |
− | + | or days (just omit the sun sensor and select appropriate timing pins | |
− | + | and much lower oscillation frequency for the 4060). | |
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=== [[Fridge Defrost Timer with Solar Trigger Option]] === | === [[Fridge Defrost Timer with Solar Trigger Option]] === | ||
− | The [ | + | The [http://www.youtube.com/watch?v=62LHITkTCMs project video] shows a fridge timer which can be set to trigger during high battery voltage sunny days so the defrost cycle never uses valuable battery power. It is switchable to act like a regular defrost timer for long cloudy stretches of time, like winter. |
=== [[Solar panel rotator motor power with auto-shut-off]] === | === [[Solar panel rotator motor power with auto-shut-off]] === | ||
− | The [https://vimeo.com/ | + | The [https://vimeo.com/48903056 project video] shows a way to power solar panel rotator motors from a solar panel, supplemented by a walladapter. |
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