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simplebus2-repeater — General description of the Simplebus2 protocol used by some Comelit's intercoms. Hardware for retransmitting Simplebus2 messages over UART. | Open App Note

simplebus2-intercom

plusvic

General description of the Simplebus2 protocol used by some Comelit's intercoms. Hardware for retransmitting Simplebus2 messages over UART.

Components (14)

Reference	Value	Description
Q1	PN2222A
U1	7805
U2	LM2903
U3	PIC12F508
C3	100nF
DB1	D_Bridge_+AA-
J1	Bus connector
J2	HC-12 transceiver
R1	510R
R2	2.2K
R3	100K
R4	10K
R5	220R
R6	1K

simplebus2-intercom schematic

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simplebus2-intercom board