Timeline for Low power timer circuit for solar tracking
Current License: CC BY-SA 3.0
13 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Apr 21, 2014 at 22:31 | comment | added | gwideman | @Joe OP's device might or might not be for the purpose of collecting and storing energy, he/she hasn't said. (If it is, why mention using wind to power the motors?) Might just be for measuring or something. | |
| Apr 21, 2014 at 14:28 | answer | added | Alf | timeline score: 1 | |
| Apr 21, 2014 at 11:50 | comment | added | user38637 | , ie much greater solar power to be gained by repositioning to overcome loss by motor | |
| Apr 21, 2014 at 11:44 | comment | added | user38637 | If you have wind, PV wing force will exceed strength of motor and bracket unless very carefully designed. Consider windshield wiper motor with long lever control and high gear ratio. Then use 5 narrow PDs to measure strongest source angle an only move if significantly off angle with hysteresis. | |
| S Apr 21, 2014 at 10:57 | history | edited | jippie | CC BY-SA 3.0 |
just text has changed
|
| S Apr 21, 2014 at 10:57 | history | suggested | Roh | CC BY-SA 3.0 |
just text has changed
|
| Apr 21, 2014 at 10:49 | review | Suggested edits | |||
| Apr 21, 2014 at 10:57 | |||||
| Apr 21, 2014 at 9:53 | comment | added | gwideman | You are going to need an MCU, such as Arduino, to control the steppers anyway, and the steppers will take considerable power (depending on the size of object you are movingm and especially if the stepper is required to hold the object in place) compared to the MCU... so as others have suggested, figure out the total power supply picture before optimizing the one part. You might also consider using a servo motor rather than a stepper... one or the other may be more appropriate depending on the size of object, and other mechanical properties. | |
| Apr 21, 2014 at 6:21 | comment | added | gbarry | Why not calculate the amount of power needed to drive the motors and then compare it to the power used for the timer? That may save you from over designing the timer. | |
| Apr 21, 2014 at 6:13 | review | First posts | |||
| Apr 21, 2014 at 8:00 | |||||
| Apr 21, 2014 at 6:11 | comment | added | jippie | Why not use two light sensitive sensors that actually measures where the light is brightest and correct the assembly angle for that? | |
| Apr 21, 2014 at 5:59 | comment | added | Ignacio Vazquez-Abrams | Why not use a MCU that sleeps most of the time? | |
| Apr 21, 2014 at 5:48 | history | asked | user40640 | CC BY-SA 3.0 |