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  1. R

    Need some advice re resistors and LED's

    Hi, I'm sure this is an easy one. I have an IR LED with a forward voltage of 1.7v, and forward current of 100mA. My picaxe circuit uses a 28x1 chip. Im using a 9V supply which is regulated, via a 7805 chip, to 5v. In order to get the most brightness from the LED should I connect it straight...
  2. R

    Memory Location Already Used Is there a known reason for this?

    Hello my first post here, I am using PICAXE VSM to simulate my circuit and the PICAXE programming editor to write my code. The program im writing is for a 28x1 chip. Last night I got an error "Memory Location Already Used" in the VSM, the programming editor syntax checker says Im using 1377...
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