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AIM to PC interface
Scotchflex 3303 Breadboard Kit
Chip ID sheet for Scotch Flex
Important Schematics
Power-On Reset
Hornby Signal to TTL
Power Supply on Vector Board (Assembly of Circuit on PCB)Address Decode Logic (ADL)
GAL worksheet
Using PALS for Microcomputer Address Decoding (Bart Addis)
Using ORCAD
Sample ORCAD Schematic for ADL*
Sample ORCAD Schematic (thanks to Jon and Brent)*
Sample format for Title block*
Sample of Daughter Board Excel File*Testing and Validation
MICROCOMPUTER TROUBLE-SHOOTING GUIDE
TEST of the 5VDC DIP DPDT RELAY -- Time Delays* SAMPLES ARE PROVIDED FOR GUIDANCE
-- DO NOT COPY EXACTLY --
BEWARE THEY MAY CONTAIN ERRORS
Connections from Student Computers to Signal Sensor Board
Test Stand Section Connections
N-TRAK Block Signal Sensor Board
Center Track Circuit (loops back on itself)
TTL Control of DC Motor (simulated)
SCR Control of DC Motor
Direction Control of DC Motor (simulated)
Speed Control of DC Motor (simulated)
Comparator (simulated)
Relay Control
Optical Proximity Detector
Optical Proximity Detector - Two Thresholds - Schmitt-Trigger
Railroad Switch Control - Trickle Charge (Board Layout) (simulated)
Railroad Switch Control - SCR
/R/S Flip Flop Latch - Optical Proximity Detector
Hall Effect with Flip-Flop
Auxillary Power Supply for 12-20 VDC Devices
2 Bit Counter
Arduino (pinout) more info