From 32cd26fccf95402c09d83d2c1be163b4b423a7a8 Mon Sep 17 00:00:00 2001
From: Lewis Jackson <>
Date: Thu, 1 Jun 2023 15:12:39 +0300
Subject: [PATCH] Replace inverse smoothstep with regular smoothstep for
 battery curve

---
 src/WatchFeatures/Battery.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/WatchFeatures/Battery.cpp b/src/WatchFeatures/Battery.cpp
index 2bc0813..c3ff043 100644
--- a/src/WatchFeatures/Battery.cpp
+++ b/src/WatchFeatures/Battery.cpp
@@ -15,6 +15,7 @@ float WatchFeatures::Battery::GetVoltage()
 uint8_t WatchFeatures::Battery::GetPercentage()
 {
   float voltage = GetVoltage();
+  Serial.println(voltage);
 
   float level = (GetVoltage() - 3.6f) / 0.6f;
   if (level < 0.0f) {
@@ -23,7 +24,7 @@ uint8_t WatchFeatures::Battery::GetPercentage()
     level = 1.0f;
   }
 
-  level = 0.5f - sin(asin(1.0f - 2.0f * level) / 3.0f);
+  level = level * level * (3.0f - 2.0f * level);
 
   return std::round(level * 100.0f);
 }