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  1. M

    Sound Controlled Lighting System

    Some GCSE students of mine want to use a PICAXE 08M or 18A based circuit to respond to an analogue sound input and as the sound signal gets larger, for more output LED's to be turned on. Can anyone suggest the simplest possible input sensor circuit that will allow this to happen. Everything...
  2. M

    USB powering of 08M alarm pcb

    Can anyone advise if in secondary school use students will be able to make circuits using the 08M alarm circuit PCB which can be powered via a PC USB socket which I believe can deliver 5V at 100mA, instead of using batteries? If they can be used will they be able to run any small motors (eg for...
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