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When this happens, the pic usually just hangs up. It will not do anything until it is powered down and back up again. It happens so fast that I have not been able to catch it on the scope. It has...

I have a circuit that reads a pot (0-5VDC) into the A to D of the PIC. This works fine. In some applications I take a 0-10VDC signal for an external controller through voltage divider into the same...

I guess I don't fully understand this concept. If I have a load of 20 amps then with a .1 ohm series resistor that would be about 2V at 40 Watts. I guess I'm missing something simple.

The $10...

I have a vairaible speed contoller that I would like to measure the current load on the unit. The load can be between 0 and 20 amps. I would like to be able to monitor the current in to the PIC. If...

My Pic did die in less than 2 day.

I only have 5VDC available to the board. I added a diode in between the 5V rail and the PIC. I put a 220uf cap across catode of the diode feeding the pic with...

I have a PIC16F84A that I'm writing a number to memory to keep if case of loss of power. I think I have read that you can only write to a location so many times. I'm sure this is a high number, but...

I will keep working on it. The only load I have on it now is a volt meter. It is powered for the 5V Rail.

Thanks,

Terry

adding the 1k and 4.7K resistors to the op amp to give it some gain, did not seem to help. I only have one rail to rail op amp here it is a lmc 6482 form national.

I'm using a PIC 16F716 @ 4mhz. ...

I am using the PWM command to create a 0-5V output that corresponds to 0-100% on my display. The Pic Pin has a RC filter 10K and 1uf cap into a rail to rail op amp. The op amp is powered off of the...

Thanks,

I will try this

Terry

Mark & Robert,

You were correct that the wiring was different. I was able to pull the old asm code from the original C code to put in my basic code. Now thats a little confusing. I got the asm...

Yes, the display is already wired to the driver chip. I will check the data sheets for both. I have the data sheet for the driver, but I will have to find the one for the LCD.

This display and...

i'm struggling with this code. It is a 4 digit 7 segment display. The display just seems to roll continiously very fast. I put in a pause to slow it down. I removed the "IF Total = 9999 then Temp =...

Its a 7 seg LCD that has a Microchip AY0438 driver with it.

Terry

I have a Glass type display with a Microchip AY0438 display driver. I found the assembly code for this chip on Microchips site, but I'm bot very good with assembly. Can anyone offer a code example of...

I have an application where I need to monitor, store, and log the AC line voltage and frequency from three different sources. I will bring these voltages and HZ into a pic and display on a LCD. My...