Relay interface to microcontroller by ULN 2003
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Uploader Comments (milabut)
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All Comments (6)
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what software ur using ???
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is this called negative logic? can we use +24Vdc as a control voltage instead of +12Vdc in this IC?
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please increase your lecture speed sir, its so slow...
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i want to switch 20 relays, what controller i should use?? plz
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You may be the blessed one to understand things faster.But majority need slow explanation.
milabut 3 months ago
you can use uln2003 three nos interfaced to 8051 microcontroller 21 pins so that you can operate 21 relays
milabut 6 months ago