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    Stepper motor unipolar RPM

    Hello. I have a unipolar stepper motor 28BYJ48 with the ULN2003 Driver. I know there was a lot of questions about it on the forum, but my question is about the speed. I used some codes and the one is better is here. It's by AllyCat. (Thank you). The speed is 2-3RPM. Changing the PAUSE (symbol...
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    Turn off multiple tasks

    Hello. There is a 12 led night lamp with a touch switch. (2 chips 20m2). Every led is an independent task. Is there a way to turn off all of them at the same time after a period of time (30 min.) to save battery (4AA) Thank you very much . Here is the code #PICAXE 20M2 #NO_DATA ; works. turn on...
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    2 picaxe 1 supply

    Hello. I have a question. There is a circuit with 2 picaxe 20m2 which go to light several leds by 2 ULN2003. Totally, it'll be 14 leds. If, basically, there is only 1 power supply (let's say 24v) and it will be: Power supply / LM7805 / picaxe 20m2 / ULN 2003 / and the same power supply to...
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    Dfplayer question

    Hello. I have the dfplayr with a picaxe 18M2. This is to play a mp3 (20-30 sec. duration) file every 20 minutes. Here below is the code by spe035.pdf for multiple files. ... For varA = 1 To 9 SerTxd("Play MP3 folder song 000", #varA, CR, LF ) cmd = $12 : arg = varA : Gosub Send Pause 1000 Do...
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    Pinout voltage change

    Hello. I have a question. I have the code with some cases and 2 parallel tasks. So, the pwm for fading doesn't work. So I thougth to play directly with the voltage of pinout. In general, what is the best way to change the voltage of pinout. Thank you.
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    Smart candle

    Hello. I tried to reproduce this project of "smart candle" with picaxe. Less pieces and another programming lesson: (thanks for the author!) 1. So there is a light always on 2. When you blow on the microphone - light goes off for a pause of 5000 3. There is a ldr (with the voltage divider with...
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    08M2 - Minimum current

    Hello. I'm looking for the option to minimise the current. I have a picaxe 08M2 which drives a piezo by TUNE with a pot (volume) from C.2 (also a led). The supply is 9v (by 7805 - 5v). The program is a TUNE (every 20minutes) and I finish by END after 3 hours. The cell drops to 6v after 2 days :)...
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