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Nope, that idea is not mine!

I wrote the following program several years ago as an exercise to demonstrate what can be done with a single momentary switch, three LEDs and a piezo sounder. The originally hardware was the AXE092 Schools Experimenter board made by RevEd. I believe the AXE092 kit has been discontinued but the...

I successfully used all 4 available PWM modules on a 28X2 in a project back in 2020. The related code is as follows: Symbol oRedLED = B.0 '21 PWM Out to Red LED *** *** *** *** Red PWM *** *** Symbol oWhiteLED = B.5 '26 PWM Out to White LED *** ***...

100mS proved to be adequate for this application. In practice, it was difficult for the touch to be less than 100mS I checked the code file - it was actually a 28X2 running at 8MHz, with Timer interrupts every 100mS. The client originally supplied a 20M2 but it was unsuitable due to its...

I have used a 20M2's 28X2's Touch or Touch16 feature (this characteristic I describe below is probably typical of all PIC and PICAXE chips) for a project that had 9 touch inputs, along with 9 outputs that were used to drive 9 LEDs. I found three unexpected characteristics during the project...

Have to agree with you on that point. You'll never find me queuing for 72 hours outside an Apple store for the latest iPhone 27. Nor, for that matter, will I buy a newly released model of car. As for replacing Windows 10 - I still have to run Windows XP under Oracle's VirtualBox for one...

On the same board?

"It works fine with LEDs." Do you mean when you download code to the 14M2 on the AXE004 board, it works when it is wired to some LEDs? It will help members if you tell us what the error message is. Otherwise, we'll just be guessing.

As mentioned previously, the "dirsB" and "dirsC" could be moved to the line just before the "sense:" label, since it only needs to execute once, at start up. For clarity "symbol out = b0", being a definition and non-executable, is best moved to just before the "setfreq m32" line.

A couple of optional code simplifications Do and Loop commands can be used instead of GoTo <label> Two or more outputs can be listed after the High and Low commands. #picaxe 08m2 Do if pin3 = 1 then low 0, 4: high 1, 2 else low 1, 2: high 0, 4 ' does all this if pin3 is...

I second Buzby's message. Microcontrollers (and relays, even with protection diodes) create a lot of electrical noise on their supply lines, which can be harmful is not absorbed by capacitor/s. Refer to Manual 1 "Getting Started", from page 26 onwards - capacitors around the voltage regulator...

There's no way in a fit that Rev-Ed will include ASM or C. Either would expose their proprietary firmware.

I remember your too-neat-for-words breadboard designs all too well. Noone could match your projects!

I often wonder how I used to find time to go to work ;) . (Now semi-retired).

I think hSPI would be fine for controlling the PGA2311. I built a 5+1 home theatre controller 17 years ago. I used a 40X2 (with a 14M2 as a dedicated IR receiver/controller). While I didn't use the PGA2311 for volume control, I did use hSPI to control the 6 channel volume. I don't recommend...

If these devices require "full duplex" SPI, then you're out of luck. By "full duplex", I mean sending and receiving data in the same command. I've tried all sorts of direct SFR manipulation to no avail.

Very tidy!

Also check the supply voltage to the chip. Does it fluctuate when you attempt a download?

You've left us guessing but I assume you're referring to a 28X2 or 40X2. Yes, a pull-up resistor is necessary on the reset pin. It can be located under the chip if you're using a socket for the PICAXE. Alternatively, it can be surface mounted on the reverse side of the circuit board - it need...

You could put some code that does what you want in a macro called CLS and then use CLS in your program.