From 7e5c8f1b6b07b22a2a7afed64cc5747c736d2eb2 Mon Sep 17 00:00:00 2001
From: Adar Nimrod <nimrod@shore.co.il>
Date: Thu, 15 Jun 2017 12:34:20 +0300
Subject: [PATCH] - Added scripts to show the battery charge percent on the
PocketCHIP.
---
Documents/bin/pocketchip-battery | 8 ++++++++
Documents/bin/update-voltage | 34 ++++++++++++++++++++++++++++++++
2 files changed, 42 insertions(+)
create mode 100755 Documents/bin/pocketchip-battery
create mode 100755 Documents/bin/update-voltage
diff --git a/Documents/bin/pocketchip-battery b/Documents/bin/pocketchip-battery
new file mode 100755
index 0000000..6a66cfc
--- /dev/null
+++ b/Documents/bin/pocketchip-battery
@@ -0,0 +1,8 @@
+#!/bin/sh
+set -eu
+
+current="$(cat /usr/lib/pocketchip-batt/voltage)"
+
+. "$HOME/.local/voltage"
+
+echo $(( 100 * (current - min) / (max - min) ))
diff --git a/Documents/bin/update-voltage b/Documents/bin/update-voltage
new file mode 100755
index 0000000..83e3f49
--- /dev/null
+++ b/Documents/bin/update-voltage
@@ -0,0 +1,34 @@
+#!/bin/sh
+set -eu
+# To install, add the folowing lines to your crontab:
+# PATH="~/Documents/bin:/usr/local/bin:/usr/bin:/bin"
+# */5 * * * * update-voltage
+
+filepath="$HOME/.local/voltage"
+
+update_voltage () {
+ echo "min=$1" > "$filepath"
+ echo "max=$2" >> "$filepath"
+}
+
+current="$(cat /usr/lib/pocketchip-batt/voltage)"
+
+mkdir -p "$(dirname "$filepath" )"
+
+if [ ! -f "$filepath" ]
+then
+ update_voltage "$current" "$current"
+ exit 0
+fi
+
+. "$filepath"
+
+if [ "$current" -gt "$max" ]
+then
+ max="$current"
+ update_voltage "$min" "$max"
+elif [ "$current" -lt "$min" ]
+then
+ min="$current"
+ update_voltage "$min" "$max"
+fi
--
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