Recent content by NoSmoke

My mouse scroll wheel scrolls up/down full screens for most all apps except the PICAXE editor which scrolls one line only. Doesn't seem to be anything in the editor options (in fact the scroll wheel doesn't seem to scroll anything in Editor Options). Is there any way of configuring the...

Was wondering if there is any way to keep the current data type (Data, RAM, Scratchpad or Table) saved for the next time the simulator is run (it defaults to "Data")? Same for the single step setting in the Simulation panel. It would also be nice to have "0" to "7" displayed across the column...

I have found what appear to be discrepancies between the Picaxe simulator and program execution on the 14M2 using the serrxd and sertxd instructions. The differences come in the use of the # option before the variable eg. "serrxd b0" or "serrxd #b0" and "sertxd (b0, 13, 10)" or "sertxd (#b0, 13...

I am trying to input single digits using the Terminal function and the SERRXD command. I can get it to work but the problem is the program has to be executing the SERRXD command at the time the digit is typed or the digit is ignored. I have placed the SERRXD (with timeout) in a loop which does...

I was contemplating adding an external Schmitt trigger to an input to possibly better detect (less jitter) the zero-cross point of an AC input. I am doing this for software triac triggering on a 28X2 and simply looping until the pin goes hi or lo. It works but the detection point timing seems...

While comtemplating my recent misfortune trying to control AC power with MOSFETs and IGBTS, it occured to me that TRIACs might be the better way. For one, it keeps everything in AC so no messing with high(ish) DC currents but the software will be more complex as each TRIAC (one for each phase)...

papof2, yes, that's what I am suspecting - a zero-crossing detector might work but when/if this thing is ever connected to the wind mill, I would connect it only when o/p is low or zero so it may work fine in actual operation. The 8,000uF filter cap I have across the rectifier also results in a...

My PWM/MOSFET circuit for windmill load control was progressing nicely. It was driving fairly substantial test loads (about 6A at 120V fullwave rectified, but unfiltered, mains AC). The PWM signal to the MOSFET gate was clean as a bean (at 500Hz and a bit over 4V) and the MOSFET got barely...

I have breadboarded a 28X2 driving, via PWM, a MCP1407-E/AT (MOSFET driver, 6A) in turn driving an IRL640BPF (n-channel power MOSFET, 200V 17A). The 28X2 is connected directly to the driver (with a 10K pulldown). The driver is connected to the power MOSFET through a 20 Ohm resistor (also with a...

The "General Picaxe Manual" states the following about interrupts: "Does the PICAXE support interrupts? The PICAXE uses the internal microcontroller interrupts for some of it’s BASIC commands (e.g. servo). Therefore the internal interrupts are not available for general use. However the A, M and...

Greetings, am investigating use of PicAxe for wind power generation load control (increase load on generator as wind speed increases and decrease as speed drops to maximize output). I would like to meter rotation speed and wind speed simultaneously using the Count instruction and the...