[SOLVED]No output on LCD screen of green bee project.
Wed Mar 18 2009, 10:39 pm
No not this. I meant the ADCs circuit in free running mode sorry
I vaguely remember the clock is given to the clock and 1 more pin of the ADC. Sorry i dont have the circuit. All circuits were maintained by 1 of my project batchmates and i have no contact with that person now! It should be available on the net if u search am sure...
I vaguely remember the clock is given to the clock and 1 more pin of the ADC. Sorry i dont have the circuit. All circuits were maintained by 1 of my project batchmates and i have no contact with that person now! It should be available on the net if u search am sure...
Thu Mar 19 2009, 11:35 pm
hello sir, itz a good day 4 me ... i found a major fault in ADC ckt :mad , the 1pf capacitor i hv used in clk ckt for ADC was shoted :-s . dats why ADC was nt getting perfect clock pulses...i solved it out. n finaly on LCD disply i m able 2 see real time reading.
though i hv solved it, bt still i hv chk 2 sensors at free running mode to satisfy myself... after dat i will give my final touch 2 it.
Thanks a lot sir for ur time to time guideline. :-)
though i hv solved it, bt still i hv chk 2 sensors at free running mode to satisfy myself... after dat i will give my final touch 2 it.
Thanks a lot sir for ur time to time guideline. :-)
[ Edited Thu Mar 19 2009, 11:56 pm ]
Fri Mar 20 2009, 09:09 pm
Hey, what is the progress?
Hope you have sorted out the problem. By the way driving those LEDs like that is not a good idea. (Ajay, what do you think???) By the way as far as I remember the clock is connected to more than just one pin :mad
Hope you have sorted out the problem. By the way driving those LEDs like that is not a good idea. (Ajay, what do you think???) By the way as far as I remember the clock is connected to more than just one pin :mad
Fri Mar 20 2009, 11:37 pm
hello amit.....
i hv one doubt 4 u. Does the reading keep changes every instant of tim......i noticed dat the temp reading n humidity readings r changing every tim the cursor moves......i ddnt get any const value on d LCD for few mins.....
i hv one doubt 4 u. Does the reading keep changes every instant of tim......i noticed dat the temp reading n humidity readings r changing every tim the cursor moves......i ddnt get any const value on d LCD for few mins.....
Fri Mar 20 2009, 11:41 pm
Chinmay as long as there is a change in the what the sensor is reading there will be a change in the o/p on the LCD. Ensure that you are in a stable environment. Not too windy, etc.
Why dont you do this. As you are running the system, connect the multimeter to the o/p of any sensor (say, temperature) now at the instant the reading on LCD changes, immediately note down the voltage o/p of the sensor on the multimeter and tally it. There you will come to know if the set up is working correctly.
Why dont you do this. As you are running the system, connect the multimeter to the o/p of any sensor (say, temperature) now at the instant the reading on LCD changes, immediately note down the voltage o/p of the sensor on the multimeter and tally it. There you will come to know if the set up is working correctly.
Fri Mar 20 2009, 11:51 pm
Well i hv done dis b4....bt i noticed dat values r vary in a large range... i.e at 1st instant temp: 53.6 c , Rh:98%....n next it shows temp: 82.9 C, Rh: 34%...lik dis..bt analog signals a perfect w.r.t environment. bt i hv chked my ADC at free running mode itz converting d analog signal to digital one with exact value...means itz nt fluctuating.
Fri Mar 20 2009, 11:58 pm
Oh that means the hardware is working fine. have you checked the ADC o/ps for a range of values and with all sensors connected?
How could so many errors have crept into the code! :mad I never faced this kind of problem. You will have to give me some time to go thro the code now. I just keep seeing code all day long and I dont have the heart to look at some more :-s
HAve you tried checking the logic of the code?
How could so many errors have crept into the code! :mad I never faced this kind of problem. You will have to give me some time to go thro the code now. I just keep seeing code all day long and I dont have the heart to look at some more :-s
HAve you tried checking the logic of the code?
Sat Mar 21 2009, 12:12 am
ya i hv checked........logic is fine....just der som prob in memory allocation during d display of actuator status.
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