Recent content by Buzby

Here's my thingy that makes noises without a whotsit ... https://picaxeforum.co.uk/threads/a-method-to-make-complex-sounds-with-just-an-08m2.23176/ This was over 10 years ago, where has that time gone ?

Does it still lock up if you move the sim speed slider to 100mS or greater ?. ( Or put a #simspeed 100 at the start of your code. ) I've had the same sort of problem. It's not so much due to underpowered computers, but to the way the PE app is structured. I'm currently working on a project...

The only capacitors I can see on your breadboard are too far from the Picaxe to have any effect. Put 100uF and 0.1uF directly across the Picaxe power pins, right up close to the chip. Your point about using screened cables is very valid. We are trying to eliminate a disturbance which is already...

220uF is a good value, but not 0.05pF, that's way too small. Your NE555 story is exactly what is happening in the Picaxe, and the solution would have been the same, decoupling capacitors. I can tell you stories about projects with not enough decoupling, and this will be yet another. You said...

As you are learning, grounding in audio circuits is more of a black art than a definite science !. Try instead of connecting the phono's sleeve ground to the DC jack ground with a wire, use a 0.1uF capacitor. This should cure the hum, without altering the DC level of the audio ground. It might...

I've looked closely at the audio switching part of your circuit. If I understand correctly, two mono signals enter at J2-1 and J2-3. The first relay selects one of the two and sends it to the second relay, which then outputs the selected signal to either J3-1 or J3-3. ( Is this correct, as...

Shorted relay coil, look in the circle I drew. There is a link directly across the relay coil. Nothing to do with R4. If K3 is switching properly then the drawing is wrong. Decoupling caps are usually 0.1uF ceramic or plastic. Your 1uF is probably electrolytic, ( or worse still, tantalum )...

I don't see any decoupling capacitors in that circuit. Picaxe hardware rules .... Rule 1 : Fit decoupling caps Rule 2 : Don't ignore Rule 1 That relay coil is shorted. I would expect Q3 to get very hot very quickly !

Thanks !. I didn't notice the link to www.picaxe.com/PE6. My screen is a bit doolally at the moment, colours are all washed-out. ( I must going a bit doolally as well !. I've downloaded PE dozens of times before, but never noticed the 'out of stock' notice. ) Cheers, Buzby

I can't see any big delays in there, but there are a couple of thing it might be. The dirsB = %00111111 and dirsC = %00000011 should only be needed once. Move them to before the pullup command. The setoutputs: routine is setting the MSB first and the LSB last. Although I do not think this is...

I wanted to download a fresh copy of PE6, but it's out of stock.

It would help if you posted your exact code. It's impossible for anyone to tell what you've 'cut out'.

I agree. Snap is great for simple electrical circuits, but gets really complicated if you try to do anything with more than a few components. OP says the programming resistors are built into the U21 block.

Mapping functions, floating point, and lots of strings are all software dependant. They would need a completely new Picaxe interpreter architecture, with a completely new compiler. I don't see that happening in the next 15 years, unless Elon Musk buys RevEd !. However, access to the new...

Here's Westies controller .... https://picaxeforum.co.uk/threads/picaxe-based-dcc-accessory-controller-for-model-railways-using-nce-dcc-control-system.28444/ https://picaxe.com/project-gallery/picaxe-based-dcc-accessory-controller-for-model-railways-using-nce-dcc-control-system/