AC.motion

July 11, 2005

Wiring the computer

Wiring Loihi (onboard computer) I went to the electronics shop to get a small fan, some LEDs (white ones, 13.000mcd, now sell for EUR1,-), struts, and some plugs. Epoxied the struts into the base board, attached main board and DC/DC converter (there is a bit of tension I'd like to do without). For the hard disk I still have no solution other than attaching it with screws from the bottom.

Installed the mini fan only to realize it's pretty deep and interferes with the hard disk (it only fits at an angle). I don't feel like stacking components since I'm concerned about thermal issues (the CPU, bridges, DC/DC-converter all radiate off a fair amount of heat). The whole box is getting a bit crowded with all the cables, which wouldn't matter if they wouldn't block air flow. Though I don't really feel like redoing the box, but I might want/have to. Darn, it just needs to be 1cm higher and 5cm longer.

Started putting together the board for the basis stamp. Attached a red LED as a "sleep mode" indicator. Prepared another flat cable for the on board COM connectors (now I've got three).












ComponentConnected toVia
WLANUSB 1USB cable
Servo controllerUSB 2USB cable
Turret camUSB 3USB cable
Underwater camUSB 4USB cable
Compass moduleBasic StampFive wires
Ultrasound sensorBasic StampThree wires
LCD DisplayBasic StampThree wires
GPSCOM 1Serial cable
Basic StampCOM 2Flat cable
[Open]COM 4Flat cable

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