Cooking Timer Project

[esmore]

Try a baud mode number of 16780, I think this things are inverted.
SW1 = ON
SW2 = OFF

I will try that. And also this is my first time dealing with pics I have a question also about my set up does it need power to run to the pic? if so what leg its a pic16F819

[malc-c]

I will try that. And also this is my first time dealing with pics I have a question also about my set up does it need power to run to the pic? if so what leg its a pic16F819

Err yes you need to supply power to the PIC to run it !

5vdc required

Have a read of the data sheet http://oap.sourceforge.net/datasheets/PIC16F819.pdf

[esmore]

Err yes you need to supply power to the PIC to run it !

5vdc required

Have a read of the data sheet http://oap.sourceforge.net/datasheets/PIC16F819.pdf

I look at the diagram pin 14 VDD is my 5volts so does that make pin 5 VSS the ground?

Thank you for the data sheet

[malc-c]

I look at the diagram pin 14 VDD is my 5volts so does that make pin 5 VSS the ground?

Thank you for the data sheet

Yes - Vss should go to GND and Vdd to +5v Without these connections your PIC won't run !

[mackrackit]

Also look in the manual, section "2.4. It=s Alive".

This shows the basic/generic setup required. VDD, VSS, MCLR, OSC...

[esmore]

I was looking over my schematics

on the lcd display it says its only one wire and it hooks up to the
RB6/T1OSO/T1CKI/PGC pin is that right?

[malc-c]

That's a crap schematic if you don't mind me saying so...

1) MCLR is left floating - should be pulled high via a resistor between 1K and 10K.
2) No supply lines to the PIC - as stated Vdd to +5 with Vss to GND
3) No decoupling capacitor - Place a 0.1uf Capacitor across the supply lines as close to the PIC as possible
4) IGNORE
5) IGNORE
6) No values for the pull down resistors - You need to state what value components are being used - again 1K - 10 K pull up / down resistors are the norm.
7)IGNORE

OK ignore some of those comments - I've juts worked out which way the tracks are running --- I'll wake up in a moment !!!


Can you also state where the 5v is coming from and have you measured it to make sure it is 5v and not 6v or 3v or 8v dc. If you are not sure then use a 7805 regulator to ensure the voltage is as close to 5v dc.