shy/c4wled.sh
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Print brightness if -b is called without parameter.

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Shy 2024-08-06 16:47:46 +02:00
parent dd9231f834
commit 38ccaaec15
2 changed files with 22 additions and 14 deletions
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2
README.md
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@ -13,7 +13,7 @@ Switch between presets 1 to 17 or list available presets:
`$ wled -f|-w|-a [1-17|l(ist)]`
Change brightness:
Display or change brightness:
`$ wled -f|-w|-a -b [1-255]`

34
wled
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@ -33,7 +33,7 @@ commands:
on|off switch on/off
[1-17] switch preset
l, list list presets
-b,--brightness [1-255] set brightness
-b,--brightness [1-255] get or set brightness
exit status:
0 no failure
@ -61,6 +61,12 @@ active_preset() {
sed -n 's/.*"ps"[[:space:]]*:[[:space:]]*\(1\?[0-9]\).*/\1/p'
}
current_brightness() {
# Find current brightness.
curl_fetch "http://$1/json" | \
sed -n 's/.*"state"[[:space:]]*:[[:space:]]*{[^}]*"bri"[[:space:]]*:[[:space:]]*\([0-9]\{1,3\}\).*/\1/p'
}
arg_inst="$1"
arg_cmnd="$2"
arg_param="$3"
@ -107,19 +113,21 @@ for wled_host; do
;;
-b|--brightness) # Set brightness.
if test -z "$arg_param"; then
echo "Error: missing parameter for brightness." >&2
exit 1
# No parameter given. Print current brightness.
echo "Current brightness of $wled_host:"
current_brightness "$wled_host"
else
# Try to convert 3rd parameter to an integer between 1 an 255.
bright=$(printf '%u' "$arg_param" 2>/dev/null)
if test $? -gt 0; then # Conversion failed.
echo "Error: unable to parse parameter for brightness." >&2
exit 1
elif test "$bright" -lt 1 -o "$bright" -gt 255; then
echo "Error: parameter for brightness is out of range." >&2
exit 1
fi
api_resp=$(curl_send "{'bri':$bright}" "http://$wled_host/json")
fi
# Try to convert 3rd parameter to an integer between 1 an 255.
bright=$(printf '%u' "$arg_param" 2>/dev/null)
if test $? -gt 0; then # Conversion failed.
echo "Error: unable to parse parameter for brightness." >&2
exit 1
elif test "$bright" -lt 1 -o "$bright" -gt 255; then
echo "Error: parameter for brightness is out of range." >&2
exit 1
fi
api_resp=$(curl_send "{'bri':$bright}" "http://$wled_host/json")
;;
[1-9]|1[0-7]) # Switch to preset.
api_resp=$(curl_send "{'ps':$arg_cmnd}" "http://$wled_host/json")