Hello, well I am 2 days into 'electronics' so quite a newbie.
That will explain why I've been sat here for most of the day trying to figure out a stupid problem and going around in circles.
Any pointers on where to look for a solution, would be greatly appreciated.
SO ..
I'm aiming myself to build a 'sun tracker'.
The plan so far, is to use 2 solar cells out of calculators, and depending which one is exposed to the most light, move a motor in the relative direction.
Yes, I know this is a simplistic solution, but for a 1st project, I was hoping manageable.
Problem is this.
I simply cannot figure out how to 'compare' the 2 incoming voltages, and if A is higher, allow a current to output 1, and if voltage B is higher, send current to output 2.
Sure, I can do it if there is only 1 incoming voltage at a time, but when there are 2 incoming, and I only need to 'recognize' the higher one - I'm stumped.
In honesty, I have seen some 'fancy' solutions to this using chips, but was hoping there was an easy and 'obvious' solution just using resistors,diodes etc ...
.. am I being naiive ?
Hope there is a textbook answer !
Many thanks for any guidance.
That will explain why I've been sat here for most of the day trying to figure out a stupid problem and going around in circles.
Any pointers on where to look for a solution, would be greatly appreciated.
SO ..
I'm aiming myself to build a 'sun tracker'.
The plan so far, is to use 2 solar cells out of calculators, and depending which one is exposed to the most light, move a motor in the relative direction.
Yes, I know this is a simplistic solution, but for a 1st project, I was hoping manageable.
Problem is this.
I simply cannot figure out how to 'compare' the 2 incoming voltages, and if A is higher, allow a current to output 1, and if voltage B is higher, send current to output 2.
Sure, I can do it if there is only 1 incoming voltage at a time, but when there are 2 incoming, and I only need to 'recognize' the higher one - I'm stumped.
In honesty, I have seen some 'fancy' solutions to this using chips, but was hoping there was an easy and 'obvious' solution just using resistors,diodes etc ...
.. am I being naiive ?
Hope there is a textbook answer !
Many thanks for any guidance.