From c034076340fa6dcd3905255e26a76b4b15f1c550 Mon Sep 17 00:00:00 2001
From: danielrheinbay <danielrheinbay@gmail.com>
Date: Tue, 2 Jun 2020 23:17:25 +0200
Subject: [PATCH] Fix LowPower sleep by setting ADMUX to _BV(REFS1) after
 reading Vcc. Fixes #7.

---
 Vcc.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Vcc.cpp b/Vcc.cpp
index 8dbcbe3..2316e63 100644
--- a/Vcc.cpp
+++ b/Vcc.cpp
@@ -63,6 +63,9 @@ float Vcc::Read_Volts(void)
   // Apply compensation
   vcc *= m_correction;
 
+  //to fix lowpower drain, ADMUX is changed again.
+  ADMUX = _BV(REFS1); //fixes readVcc current drain in lowPower
+
   return vcc;
 }