commit 2a483b3bb7fd2766a09b8909cb1cc211ed747b15
author Jim Ostrowski <yimmy13@gmail.com> Tue Feb 15 18:19:14 2022 -0800
committer Jim Ostrowski <yimmy13@gmail.com> Tue Feb 22 22:09:49 2022 -0800
tree ec4c8d6b63bd28840bc47e53b1a9fdf8541599ca
parent 039d75607dee56e3dc35b39a860702d7f583d6b6

GPIO classes for controlling GPIO pins and PWM

Using WiringPi (gpio command) for PWM and
sysfs control using file descriptors for control of pin read/write

Requires a tweak to the Pi SD card image to install gpio

Includes a bash script to turn LEDs on and off

Change-Id: Iaa254e026db336b09758d24eb1ddcffccfb27655
Signed-off-by: Jim Ostrowski <yimmy13@gmail.com>

y2022/vision/leds_ctrl.sh

diff --git a/y2022/vision/leds_ctrl.sh b/y2022/vision/leds_ctrl.sh
new file mode 100755
index 0000000..172a4d3
--- /dev/null
+++ b/y2022/vision/leds_ctrl.sh
@@ -0,0 +1,25 @@
+#!/bin/bash
+
+# Helper script to turn LEDS on or off
+# pass argument "off" to turn off; otherwise, it turns them on
+
+
+if [ "$1" == "off" ]; then
+    echo "Turning LEDS off"
+    if [ -e /sys/class/gpio/gpio13/value ]; then
+        echo 0 > /sys/class/gpio/gpio13/value
+        echo 13 > /sys/class/gpio/unexport
+    fi
+    if [ -e /sys/class/gpio/gpio10/value ]; then
+        echo 1 > /sys/class/gpio/gpio10/value
+        echo 10 > /sys/class/gpio/unexport
+    fi
+else
+    echo "Turning LEDS on full"
+    echo 13 > /sys/class/gpio/export
+    echo 10 > /sys/class/gpio/export
+    echo "out" > /sys/class/gpio/gpio10/direction
+    echo "out" > /sys/class/gpio/gpio13/direction
+    echo 1 > /sys/class/gpio/gpio13/value
+    echo 0 > /sys/class/gpio/gpio10/value
+fi