Project page for AWANA Grand Prix scoring automation.
Extra schematics, code, or binaries can be found on each of the module sub-pages.
The manifest given below is an approximate parts list for circuits related to the PCBs only. IC's used have links to local copies of the relevant datasheets.
April 25, 2004 - update: communications hub module does not function as required. The circuit requires extra inverters. As provided, the hub will accept one control unit at a time only.
April 26, 2004 - updated communications hub and control unit schematics to allow more than one control unit to be connected to a hub.
- Samson
modules
light-adaptive photo-detector module
polling detector (control unit)
host computer race management program
system block diagram
parts manifest
List of parts used. Equivalent or similar parts may be substituted for given values.
detector module
| value | item | quantity |
| 33 | capacitor | 4 |
| 0.01 | capacitor (bypass) | 1 |
| 1x2 | header | 3 |
| 2x8 | header | 1 |
| LED | 4 | |
| MAX944 | 1 | |
| PCB | 1 | |
| photodiode | 1 | |
| 270 | resistor | 4 |
| 27k | resistor | 4 |
| 56k | resistor | 4 |
| 150k | resistor | 4 |
control unit
| value | item | quantity |
| AT90S2313 | 1 | |
| buttons | 3 | |
| 2200 | capacitor | 1 |
| 0.01 | capacitor (bypass) | 1 |
| 8 MHz | crystal | 1 |
| 1x2 | header | 1 |
| 2x8 | header | 1 |
| LED | 5 | |
| pcb | 1 | |
| 100 | resistor | 5 |
| 270 | resistor | 5 |
| 150k | resistor | 1 |
communications hub (and power supply)
| value | item | quantity |
| 9V battery clip | 1 | |
| 1 | capacitor | 4 |
| 0.01 | capacitor (bypass) | 2 |
| 2200 | capacitor (filter) | 2 |
| diode | 1 | |
| DS8838 | 1 | |
| LM7805 | 1 | |
| ICL232 | 1 | |
| pcb | 1 | |
| 180 | resistor | 1 |
| 390 | resistor | 1 |
| 1.5k | resistor | 4 |