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I have the issue solved thanks, i'm still not sure why - but I have it working. Both trigger pulses are only in one direction, gate of triac just hooked upto resistor to PIC pin. It will work if I...

Thanks Jerson,

Tho I think you slightly misunderstood what I was getting at. When I fire the triac on only a half cycle it will work on only one side of the phase. If I fire at 10ms intervals to...

I'm trying to trigger a sensitive gate (designed specifically for direct connection to microcontrollers) BT131-600 TRIAC. MT1 is connected to neutral line, so is Vss on the PIC, The triac tho seems...

Finally think I have it resolved, I tried a lot of things, ferrite beads, rf inductors, ceramic caps and all failed. The thing that seems to work is I got 5m of sheilded cable and ran the signal...

Thanks for the input so far, unfortunately the Bezel is ali, have put solder on all the pads under the bezel tabs, soldered a separate earth cable then pulled the tabs onto the solidified solder so...

Hope everyone had a good Christmas and new yrs, unfortunately I'm bringing a problem that plagued me from last year into this. I built a little jig for testing energy from small piezo igniters. It...

I've been designing a pure sine wave inverter (linear motor drive) - but come a little unstuck with filtering the wave form, at the moment I think I may need a redesign but I'm hoping someone here...

yes, have managed to erase the 'dud' chips, there is a technique - like plug them in, activate hold on reset, unplug then plug in again and erase twice - but it works at least!

Thanks for that, just this very minute got it sussed, so hopefully this will help someone else out facing the same problem. BTW is appears PICkit 3 does not have the same calibration function as #2...

Ok, I've had a good look around the internet and have found many people have had experiences similar to mine when using PIC16F628A, some people have found a cure that works for them but nothing at...

Managed to get my PICkit 3 reprogrammed with new firmware - my USB port didnt have enough supply to power the unit while upgrading firmware - used another port and worked a treat.

However I've...

Thanks Dave,

I've had a good hunt, it seems that perhaps they are not blowing up and just code protected and my programmer just cant deal with or erase them. I was going to try at 5.5V and see if...

Hi David,

I had exactly the same problem as you seem to be having with a project I'm currently working on, also with a PIC16F628a.

I found the answer to be _LVP_OFF

What would happen is it...

It appears it's my PICKit 3??? I've built another board up that basically just has a crystal, LED and ICSP port does exactly the same thing on there too - so at this stage I'm 11 PICs down and...

I've always found PICs to be rather hardy creatures until last week anyrate. In that time I've managed to blow up eight PIC16f628A chips and I have no idea what the problem is.

I have a PICKit 3...

Thanks Charles, My bad sorry - one of those pesky solder bridges your code helped me find the problem tho.

Sorry for posting this when it was a silly wiring fault on my part

I'm trying to drive six LEDs as an indicator, but cannot figure out quite what I'm doing wrong. If I use this as my code:

portb = %1
pause 100
portb = %10
pause...

I've been working on a project for a while but it's driving me nuts and I'm about to pour petrol on the lot and set it on fire in frustration.

I'm not a programmer type person I'm mechanical, so...

I've not had much luck historically using the 10F series, PBP requires too many background resources . Have a look at the 12F series for small projects with PBP

Why dont you just put a current regulator on it and drive it synchronously? It doesnt get loaded, so you just need to put an acceleration ramp into yr code. Add six transistors and you're done.

The PIC16f722 was doing funny things, in desperation I threw it away and went back to the trusty 16F88 however this is not working for me either.

The PicKit 3 I bought was driving me mad also,...

Thanks - it works a treat now! Really appreciate your help. That Mister E is a clever fello

I just noticed in the transmission the shortest bit is 0.42ms, that equates to around 2400bps and in the receiver output the shortest is 0.1ms which equates to 10,000bps - tho I didnt measure it...

Am having significant problems trying to transmit some data.

I'm using some wireless transceivers as found here:...

Ok, I splashed out and bought a PICKit 3, the latest upgrade to PBP, I'm now using MPASM as it recommends using it, I'm only an occasional user of PBP

However I get a tonne of errors Why doesnt'...