Relay interface for Stamp II — Parallax Forums

Relay interface for Stamp II

Archiver Posts: 46,084

2000-08-23 17:20 edited 2000-08-23 17:20 in General Discussion

Want to use a 2N2222 transistor triggered by the output pins to drive
relays. What should the value of the series resistor and pulldown
resistor be to avoid overloading the output pins?

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