Definitely have 5 volts.
On 9/27/21 10:24 AM, John Eldridge via
groups.io wrote:
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Thanks Bill,?
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Based on your reply, confirming how this BD20 is connected,
you said 3 wires: ¡°one logic, one common, one power¡±.??
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Have you measured the ¡°power¡± voltage @ the BD20 terminals 1
to 4 to confirm you actually have 5V??
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If you do, you should connect your ¡°logic¡± wire to pin 3 to
take advantage of the power provided.
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Also, are you saying that with 5V power @ the BD20 terminals,
the LED on the BD20 is NOT lighting with a train in the block?
John Eldridge
Texas