Signals
- Three aspect semaphore signals will be used to 'control' movement between the 16 control blocks. Each control run will start and end in the "Parking Lot". Movement in the parking lot will be controlled by dwarf signal (tri-color short LED) signals.
- Based on the exit paths from each block, signals required:
- 28 double headed semaphores,
- 4 single headed semaphores and
- 4 dwarf signal lights, one for each parking space.
- The aspect of each signal is controlled by the Raspberry Pi (3).
- Which aspect will be displayed is determined by the laptop (4).
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Tomar Industries Double Headed Semaphore # TMB842 |
Tomar Industries Single Headed Semaphore # TMB854 |
Tomar Industries Single Headed Semaphore # TMB853 |
Tomar Industries, Dwarf signal light, # TRM850, for the "Parking Lot"