Hi Folks. Some 15 years ago, Clive Seager presented a fairly comprehensive series of articles entitled 'Picaxe in Schools' as an intro to Picaxe programming, and designed to be used with a Picaxe dedicated PCB. This was my intro to the 08 and Picaxe programming per se. Included was a short servo dissertation and two programs for demonstration with the board, which I never tried out at the time, not having any use then for a servo. This was a bare cct which used pin 1 in parallel with a 330R and a LED, the latter forming part of a traffic light demo in the articles. I recently tried out the servo section, and it worked fine (of course!).
My problem is that pt 3 of the Picaxe manual relating to servo control, and the descriptions for servo and servopos in pt 2, specify a 330R in the line from the selected Picaxe pin to the servo initiation input. At first I thought that this was probably for current limiting, but on further consideration, Mr Seager's PCB did not include such (as the LED and resistor are in parallel i.e no series resistor). So I would be interested to know why the 330R is specified in the manual.
Could anyone elucidate, please.
Ben Baker
My problem is that pt 3 of the Picaxe manual relating to servo control, and the descriptions for servo and servopos in pt 2, specify a 330R in the line from the selected Picaxe pin to the servo initiation input. At first I thought that this was probably for current limiting, but on further consideration, Mr Seager's PCB did not include such (as the LED and resistor are in parallel i.e no series resistor). So I would be interested to know why the 330R is specified in the manual.
Could anyone elucidate, please.
Ben Baker
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