# Modules Reference: Rpm Sensor (Driver)
# pcf8583
Source: drivers/rpm/pcf8583 (opens new window)
# Usage
pcf8583 <command> [arguments...]
Commands:
start
[-I] Internal I2C bus(es)
[-X] External I2C bus(es)
[-b <val>] board-specific bus (default=all) (external SPI: n-th bus
(default=1))
[-f <val>] bus frequency in kHz
[-q] quiet startup (no message if no device found)
[-a <val>] I2C address
default: 80
[-k] if initialization (probing) fails, keep retrying periodically
stop
status print status info