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Step 8Wiring (2) - The most "Danger, Will Robinson!" step
Servos have a limited range of 180 degrees. The control software assumes that the robot starts in a certain position with all the servos at the middle of their range. We have to make all the servos turn to middle position, then attach the parts together.
Attach the servos to the SB as shown. (fig 1). If you wire these incorrectly the joints will move in funny ways or may not move at all. It's not fatal - just correct it and try again.
Connect the USB to the DD, then the 9v power supply to the DD/SB (the labelled plug), then the 5v power supply to the servos (the unlabelled plug).
Attach the servos to the SB as shown. (fig 1). If you wire these incorrectly the joints will move in funny ways or may not move at all. It's not fatal - just correct it and try again.
Connect the USB to the DD, then the 9v power supply to the DD/SB (the labelled plug), then the 5v power supply to the servos (the unlabelled plug).
IMPORTANT! When powering on, always connect the DD first. When powering off, always unplug the DD last. If you don't the servos will spasm in strange ways and things could get damaged.
TIP: It helps to label the DD and SB plugs to avoid confusion. (see step 2, fig 5)
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