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Step 6Reconfigure the circuit as a serial interface circuit
Two subtle changes have been made to the picaxe circuit. The 22k resistor that used to go to leg 2 now goes to leg 4. And leg 2 has been grounded. The only purpose of leg 2 is to receive programming data from the PC so once the chip is programmed it can be tied to ground. If you go back to programming the chip to correct bugs etc then disconnect leg 2 from ground and reconnect the 22k to leg 2. The picaxe talks back to the PC via leg 7 so this does not need to change.
A pot has been added and the servo has been added. The servo is not really necessary and a led and a 1k resistor would work fine and/or any circuit you wish to connect. I just used a servo to show how clicking something on a screen can make something actually move.
The servo is run off its own power supply. This separate power supply would not be needed if the picaxe were just turning leds on and off.
The picaxe is ready to go - now we need some VB code.
A pot has been added and the servo has been added. The servo is not really necessary and a led and a 1k resistor would work fine and/or any circuit you wish to connect. I just used a servo to show how clicking something on a screen can make something actually move.
The servo is run off its own power supply. This separate power supply would not be needed if the picaxe were just turning leds on and off.
The picaxe is ready to go - now we need some VB code.
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