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| Search found 22 matches |
| Author | Message |
|---|---|
 Topic: lm35 and pic16f877a problem. Help! |
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| raz Replies: 7 Views: 13515 |
 Forum: General CCS C Discussion Posted: Tue Jun 12, 2012 1:55 am Subject: lm35 and pic16f877a problem. Help! |
Its workinggggg!!!!!!!!!! Thank you thank thank you ...
Yeah I'm using the trap diodes but didn't mention as they are always connected to the relay. |
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| Topic: lm35 and pic16f877a problem. Help! |
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| raz Replies: 7 Views: 13515 |
Forum: General CCS C Discussion Posted: Sun Jun 10, 2012 10:58 am Subject: lm35 and pic16f877a problem. Help! |
| uh and I'm using a 9v battery and an adapter for the relays. | |
| Topic: lm35 and pic16f877a problem. Help! |
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| raz Replies: 7 Views: 13515 |
Forum: General CCS C Discussion Posted: Sun Jun 10, 2012 10:56 am Subject: lm35 |
| Thanks for your reply...
The outputs of the pic are connected to a 100R, with a led parallel with 1k resistor, connected to bc337 transistor that drives a relay to turn the fan and exactly the same f ... |
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| Topic: lm35 and pic16f877a problem. Help! |
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| raz Replies: 7 Views: 13515 |
Forum: General CCS C Discussion Posted: Sun Jun 10, 2012 3:12 am Subject: lm35 and pic16f877a problem. Help! |
| Hi I'm working on a project to monitor temperature and display it on an lcd and control a fan and a heater, based on the room temperature compared with a reference temp. I'm using lm35, pic16f877a a ... | |
| Topic: Problem interfacing pic16f84a with Dtmf generator Ic TP5088! |
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| raz Replies: 16 Views: 28646 |
Forum: General CCS C Discussion Posted: Wed May 09, 2012 1:50 am Subject: Problem interfacing pic16f84a with Dtmf generator Ic TP5088! |
| This is the schematic im using
http://img233.imageshack.us/img233/990/interfacecr.png |
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| Topic: Problem interfacing pic16f84a with Dtmf generator Ic TP5088! |
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| raz Replies: 16 Views: 28646 |
Forum: General CCS C Discussion Posted: Wed May 09, 2012 1:35 am Subject: Problem interfacing pic16f84a with Dtmf generator Ic TP5088! |
| Hey I managed to get an audio xfmr from an old telephone but its not 600 ohm its 200 : 160 and with centertaps. I found an interface ct. connecting 470 ohm along with the xfmr and the telephone. That ... | |
| Topic: Problem interfacing pic16f84a with Dtmf generator Ic TP5088! |
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| raz Replies: 16 Views: 28646 |
Forum: General CCS C Discussion Posted: Mon Apr 23, 2012 3:08 am Subject: Problem interfacing pic16f84a with Dtmf generator Ic TP5088! |
| This is the code in C using PIC C:
#include <16F84A.h> #FUSES XT,NOWDT,NOPROTECT,NOPUT #use delay(clock=4000000) //Connection #define Enable PIN_A1 #define Pwr_led PIN_A0 # ... |
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| Topic: Problem interfacing pic16f84a with Dtmf generator Ic TP5088! |
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| raz Replies: 16 Views: 28646 |
Forum: General CCS C Discussion Posted: Mon Apr 23, 2012 2:44 am Subject: Problem interfacing pic16f84a with Dtmf generator Ic TP5088! |
| This is the schematic
http://img710.imageshack.us/img710/429/dtmf.png |
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| Topic: Problem interfacing pic16f84a with Dtmf generator Ic TP5088! |
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| raz Replies: 16 Views: 28646 |
Forum: General CCS C Discussion Posted: Sun Apr 22, 2012 6:13 pm Subject: Problem interfacing pic16f84a with Dtmf generator Ic TP5088! |
| Can I connect the output of my circuit parallel with a telephone set ?? | |
| Topic: Problem interfacing pic16f84a with Dtmf generator Ic TP5088! |
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| raz Replies: 16 Views: 28646 |
Forum: General CCS C Discussion Posted: Sun Apr 22, 2012 6:11 pm Subject: Problem interfacing pic16f84a with Dtmf generator Ic TP5088! |
| um connecting the output of the generator to a 560 ohm and a bridge rectifier then the telephone lines | |
| Topic: Problem interfacing pic16f84a with Dtmf generator Ic TP5088! |
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| raz Replies: 16 Views: 28646 |
Forum: General CCS C Discussion Posted: Sun Apr 22, 2012 5:25 pm Subject: Problem interfacing pic16f84a with Dtmf generator Ic TP5088! |
| Hi again,
I'm done with the circuit and program and connected it to a speaker. I heard pulses so i guess the generator is working fine, but when i connect it to the telephone line the 5v of the regul ... |
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| Topic: Problem interfacing pic16f84a with Dtmf generator Ic TP5088! |
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| raz Replies: 16 Views: 28646 |
Forum: General CCS C Discussion Posted: Sun Apr 15, 2012 12:36 pm Subject: Problem interfacing pic16f84a with Dtmf generator Ic TP5088! |
| Okay thanks alot | |
| Topic: Problem interfacing pic16f84a with Dtmf generator Ic TP5088! |
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| raz Replies: 16 Views: 28646 |
Forum: General CCS C Discussion Posted: Sun Apr 15, 2012 10:43 am Subject: Tp5088 |
| Yeah I got so the mute goes with the enable in highs and lows.
Considering the mark and space time of the dtmf is it okay to make 75ms and 75ms [the digit is on for 75ms then wait another 75ms then s ... |
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| Topic: Problem interfacing pic16f84a with Dtmf generator Ic TP5088! |
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| raz Replies: 16 Views: 28646 |
Forum: General CCS C Discussion Posted: Sun Apr 15, 2012 10:11 am Subject: Problem interfacing pic16f84a with Dtmf generator Ic TP5088! |
| Hey,
I'm currently working on a project to interface pic16f84a to Tp5088 and then to the telephone line to call a number stored in the uc automatically. Whats confusing me is that in the datasheet o ... |
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| Topic: Help with PIC16f877a and LCD Lmb162A....Urgent! |
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| raz Replies: 16 Views: 19773 |
Forum: General CCS C Discussion Posted: Sat Feb 25, 2012 3:08 pm Subject: Help with PIC16f877a and LCD Lmb162A....Urgent! |
| Hi again,
Its not my first program but its just i never used multiple files or drivers thats all. I tried all what i said and its working fine on Proteus but when i connect it in real, the LCD is ... |
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