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Configuration comment on using a simple switch with internal pullup on Raspberry for the OPEN/CLOSED status

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Ondrej Mikle 2018-04-29 19:48:05 +02:00
parent 918a64df81
commit 6b96cdca43
1 changed files with 17 additions and 10 deletions
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27
brmdoor_nfc.config.sample
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@ -20,7 +20,9 @@ unlocker = UnlockerWiringPi
[Unlocker]
# Config for wiringPi-based unlocker
# lock_pin - which pin needs to be pulled high to disengage the lock (GPIO numbering)
# lock_pin - which pin needs to be pulled high to disengage the lock (BCM GPIO numbering)
# Documentation on BCM GPIO numbering - https://projects.drogon.net/raspberry-pi/wiringpi/pins/
# Screenshot from the page included in file gpio_vs_wiringpi_numbering_scheme.png
[UnlockerWiringPi]
lock_pin = 17
@ -51,15 +53,20 @@ reconnect_delay = 300
# open_value - which value in status_file represents the switch being in "OPEN" position, anything else is considered closed
#
# Note: for use with Raspberry Pi, to read from GPIO in sysfs, you need to enable the PIN in input mode before starting
# brmdoor_nfc_daemon.py, e.g. with GPIO 11 as an example (note that there are 2 numbering PIN schemes):
# #!/bin/bash
# export PIN=11
# brmdoor_nfc_daemon.py, e.g. with GPIO 22 as an example (note that there are 2 numbering PIN schemes, see UnlockerWiringPi
# section above). If you have just a simple switch, you will need to set up a pullup on the input PIN, connect the other
# wire to ground and set open_value to 0 (i.e. when switch is connected, input PIN is connected to ground, otherwise pulled up to 1):
#
# if [ '!' -d /sys/class/gpio/gpio$PIN ]; then
# echo $PIN > /sys/class/gpio/export
# echo in > /sys/class/gpio/gpio$PIN/direction
# fi
# #!/bin/bash
# export PIN=22
#
# if [ '!' -d /sys/class/gpio/gpio$PIN ]; then
# echo $PIN > /sys/class/gpio/export
# echo in > /sys/class/gpio/gpio$PIN/direction
# fi
#
# python -c "import wiringpi; wiringpi.wiringPiSetupGpio(); wiringpi.pinMode($PIN, wiringpi.INPUT); wiringpi.pullUpDnControl($PIN, wiringpi.PUD_UP)"
enabled = False
status_file = /sys/class/gpio/gpio11/value
open_value = 1
status_file = /sys/class/gpio/gpio22/value
open_value = 0