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I have the software/ hardware part worked out. It's just that along the way I realized that I really don't know the answer to the basic question; why isn't the effective dc voltage equal to the area...

I’m currently working on a project that deals with controlling an AC heater and it has led to a question that I really should be able to answer… but I can’t.

I understand how to get the values of...

I am trying to build a simple circuit using a 18F2455. This thing will sleep most of the time and once in a while plug into a computer thru a USB interface and transfer some data. I can get it to...

I realized that I had, long ago, soldered a pot to the back of the lcd to control the contrast. Removing that and setting the pins controlling the lcd to high prior to the sleep command got me down...

I will try setting the output pins high, that might do the trick.

I'm using a 16f616 and an lcd 24x2 display. Prior to hooking up the lcd I had been able to get the current draw down to a few uA's in sleep mode, but when I hooked up the lcd I was unable to get the...

Thank you for the suggestion.

Thanks for the info... i guess an external voltage divider is in order.

I am trying to read 10 bit resolution voltages pins AN0 and AN2 on a 16F616. I see on the data sheet that ADCON0 bits 5 – 2 can be used to configure a fixed voltage reference of 0.6V or 1.2V. Is this...

i was considering using a 18F2553 which does have the baudcin bits. If i set them appropriately, is it a similar hook up as shown in the pbp manual with the current limiting resistors?

Thank you for the suggestion. By going with the hardware serial port i would need to use another chip like a max232, right? I have had pretty good luck with serin2 and serout2 in the past; I think i...

i am looking for a way to trigger a interrupt event when i send a serial command to a pic from a pc serial port. i plan on using the serin and serout commands in the program.

Thanks for the suggestions.

I cleaned up the sloppy parts of the code and worked with the config fuses a bit, but i still had no luck. i finally gave in and added a external oscillator; i will...

I am trying to run a 18F2450 using the internal oscillator inlieu of a external osc, but i can't even get a led to blink. Here is the test code I am trying to get working before i write the real...

good suggestion, thanks!

I need to build a liquid level sensor using conductance probes that will be exposed to both fresh and saltwater environments. I am thinking of using a small isolation transformer to feed an ac signal...

The only other device in the circuit is a real time clock; I have disconnected it during the sleep cycle with little or no change. I will try truing off the watch dog timer and setting the OSCCON as...

I am trying to get a 18F2553 to sleep using minimal current until an external interrupt wakes it. I can't get the power consumption down below about 10 mA during sleep. The only other thing in the...

If I disable the external interrupt on 16F876A, can I use the pin as an input before I re-enable the interrupt? I have an application that has 2 push buttons, and I do not want to add a third just to...

I am using Pic Basic Pro ver 2.5 with a 16f876a chip.

My program has exceeded the Page Boundary, but based on reading some earlier posts this should not be a problem. However, I am unable to write...