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41
General Discussion / Re: PIC Capacitance Sensor with 4 buttons and Multitouch Function
« Last post by mahdifah on November 13, 2016, 09:43:12 AM »
hello every body.
I write this program and my problem is T1gval. when tmr0 be overflow don't any change t1gval but T1gval should be set. do you know why??
42
Hello. I want to work by capsense in pic but I have a probelm. I use from tmr0 for base time and timer1.
when tmr0 be overflow should become t1gval toggle but I don't have any change on t1gval.
the Important registers are.
is there anyone to help me??
Thanks.

movlw b'11000101'
MOVWF OPTION_REG

 movlw b'11000101'         
movwf T1CON   

BANKSEL T1GCON   
BCF T1GCON,T1GSS1
BSF T1GCON,T1GSS0
BCF T1GCON,T1GGO
BCF T1GCON,T1GSPM
BSF T1GCON,T1GTM
BSF T1GCON,T1GPOL   
BSF  T1GCON,TMR1GE
43
General Discussion / Re: Flexible 555 LED Pulsing (Breathing) Circuit
« Last post by kam on November 06, 2016, 10:50:15 AM »
You can try a smaller R4 or try bigger R5 to get higher output.
44
Your projects / Re: RFID based Attendance System
« Last post by abhipoints on November 04, 2016, 13:05:43 PM »
Sorry for the late reply, but i need the source code for this system. Without the source code i would be unable to run this system.
45
General Discussion / Flexible 555 LED Pulsing (Breathing) Circuit
« Last post by Warren Weiss on November 03, 2016, 00:02:26 AM »
After completing this fabulous circuit by Giorgos Lazaridis http://www.pcbheaven.com/userpages/Flexible_555_LED_Pulsing_Circuit/, I tested it and everything works as it is supposed to except I can't get more that about 2.2 volts maximum from the output.  The only deviation from the component list is where I substituted a PN2222a for T1 and used a 500K trim pot instead of 470K for R7.  I've checked the wiring, connections, and components (for correct values) multiple times.  Perhaps one of the components is defective, but I'm not really sure where the problem could be.  Substitution of components for individual testing will be extremely difficult as I did not use a breadboard.  For this reason I would appreciate any suggestions of where to start looking, starting with the most likely issues!
46
General Discussion / Re: transmitter/reciever
« Last post by kam on November 01, 2016, 11:26:54 AM »
47
Your projects / Re: RFID based Attendance System
« Last post by kam on November 01, 2016, 11:25:37 AM »
What type of RFID reader are you using? I'm interested for a long range one. Do you happen to know any?
48
Your projects / Re: Test Strategies for PCBs
« Last post by kam on November 01, 2016, 11:24:37 AM »
I suppose you're looking for a data logger? is that right? There are different type of loggers, such as voltage, digital, bus...
49
Your projects / Re: Small lcd screen displaying simple engine parameters
« Last post by kam on November 01, 2016, 11:23:14 AM »
Hello felix,
first of all, is this addressed for a motorcycle? because 2C2S... I wonder what bike that is!

Anyway, for temperature you will definitely choose a termocouple. Try a J or K type. K goes up to 900-1000 degrees, J will be more precise though for your application.
As for the PIC... well, get something that has more than you need, as PIC are not that expensive. 16F family is more than enough for your application. So, 16F1939 is OK. It largely depends on the screen that you will use, rather than the sensors.
50
General Discussion / transmitter/reciever
« Last post by noel cruz on October 21, 2016, 17:41:17 PM »
Hi-
Can someone help/direct me on how to make a transmitter receiver system?
Noel
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