solar tracker controller

[Dave]

Muzakyo, I don't see where the motor is commanded to stop.. Must operate like a windshield wiper unless it's asleep?

Dave Purola,
N8NTA

[muzakyo]

i am a newbie in pic......

but from the proramming the motor will run for a certain time (100 miliseconds) and then it will get back in the start loop....

for the motor i am not sure.... but when i compile it there are no problems.

did i need to do like the slp: programming..?

for this program i refer to the pic microcontroller project book by John Iovine and pic robotic : a beginner's guide to robotic by john iovine... (first post)

[Dave]

muzakyo, I don't see anywhere in your code that you are stopping the motor if your system is "on target". You need to place some kind of DEAD BAND limits that are within the ON TARGET criteria. I mean +- so many counts... You should have at least 4 states, 1 for sleep (waiting for next morning), 1 for going east, 1 for going west and 1 for stop during the day when system is on target.

Dave Purola,
N8NTA

[muzakyo]

sorry my lack of knowledge....

for the system when the system are on the target is

skp:
if v1 = v2 then start 'If equal, do nothing

it will go back to the start..... then it will never give output to the motor (so motor will not rotate anywhere) until one of the cds value higher than other.

so to stop the motor when it run

cw: 'Turn the sensor array clockwise
high portc.0 'Turn on h-bridge
pause 100 'Let it turn for a moment
low portc.0 'turn off the h-bridge
goto start 'Check again

what do u think....

can u give idea how to improve this proramming

[Dave]

muzakyo, Yes that is more resonable.... Just don't forget to do the same for the other direction as well...

Dave Purola,
N8NTA

[Dave]

muzakyo, I found this .txt file I saved from a couple of years ago. I thought you might be interested because it looks like the same code you are trying to use but has been modified since your version.... Enjoy...

[Ioannis]

Hmm, I took a look at the code, but see no check to stop the motors when in a balance of the sensors (if they were moving).

Maybe this will help:

greater: 'greater routine
b2 = b0 - b1 'find the difference
if b2 > 10 then cw 'is it within the range? if not go to clockwise/ solar panel facing west
low PORTB.0 'pin portb.0 low /stopping the solar panel for moving
low PORTB.1 'pin portb.1 low / stopping the solar panel for moving
goto start 'if it is in the range,do it again

lesser: 'lesser routine
b2 = b1 - b0 'find the difference
if b2 > 10 then ccw 'is it within the range? if not got counter clockwise/solar panel facing east
low PORTB.0 'pin portb.0 low /stopping the solar panel for moving
low PORTB.1 'pin portb.1 low / stopping the solar panel for moving
goto start 'if it is in the range, do it again

This is an idea, not tested.

Ioannis

[PiRaTuS]

muzakyo, I found this .txt file I saved from a couple of years ago. I thought you might be interested because it looks like the same code you are trying to use but has been modified since your version.... Enjoy...

what programme did you use ?! micopaskal ?! or what ?! thanks !

[PiRaTuS]

muzakyo, I found this .txt file I saved from a couple of years ago. I thought you might be interested because it looks like the same code you are trying to use but has been modified since your version.... Enjoy...

im sorry , but can you hel me with this , do you have electric schematic and PCB