From 86b1f0ef352205029457cc75e525f86aa70239e5 Mon Sep 17 00:00:00 2001
From: lonkaars <loek@pipeframe.xyz>
Date: Tue, 6 Feb 2024 13:57:43 +0100
Subject: fix env vars + sysfs + led demo

---
 rootfs/bin/helloled | 9 +++++++++
 1 file changed, 9 insertions(+)
 create mode 100755 rootfs/bin/helloled

(limited to 'rootfs/bin/helloled')

diff --git a/rootfs/bin/helloled b/rootfs/bin/helloled
new file mode 100755
index 0000000..877faab
--- /dev/null
+++ b/rootfs/bin/helloled
@@ -0,0 +1,9 @@
+#!/bin/sh
+BRIGHTNESS=0
+while true ; do
+	BRIGHTNESS=$(( ( $BRIGHTNESS + 1 ) % 2 ))
+	for i in $(seq 0 3) ; do
+		echo $BRIGHTNESS > "/sys/class/leds/beaglebone:green:usr$i/brightness"
+	done
+	sleep 0.5
+done
-- 
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