In the previous video we configured an accessory that switches one port via a given DCC Address. But we can go further than that … the MARDEC software has the option to switch 2 ports via 1 DCC address.
This comes in very handy when for instance we have 2 inverse blinking lights, like with a railway crossing, we can configure a ‘double flash’.
Or … we can use a ‘double one shot’ to switch a solenoid turnout that has two coils. One coil gets a pulse when the DCC address switches to HIGH, the other coil gets the pulse when it switches to LOW. Beware never to connect solenoid coils directly to an Arduino or DCCnext or you’ll blow up the output pin. Use a FET module in between, as shown in the MARDEC user manual, to deliver the needed current.
The video shows both applications.
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