The bridge, except the servo, is powered from the TX
Ad (23.3.2010, 20:48:17)
From left to right: LM317, ATMega88, TSOP1738, MAX485. The diode (between the LM317 and the X-tal can be connected to +9V (for the servos). Just above the MAX485 there is a 3.3V regulator in TO-92 case. At the right are the two TX connectors Ext1 and Ext2. At the top-left the four connectors for the servos or Sharp distance sensors are also visible.
schnaggels (24.3.2010, 11:13:41)
Where does the power for the servos come from please?
I can see a connected servo but no extra power cable :)
Ad (24.3.2010, 13:06:07)
True, the powercable is (now) soldered to the diode (above the x-tal). For the prototype I used crocodile clamps which I removed for the picture. So indeed in the picture the servo is not working.