From a25b20a1e75f76a2f3bfb818d4339e18c816c2ad Mon Sep 17 00:00:00 2001
From: Damjan Adamic <projectkk2glider@gmail.com>
Date: Sun, 20 Mar 2016 17:01:17 +0100
Subject: [PATCH] Re #3371: Sky9X fixed

---
 radio/src/targets/sky9x/board_sky9x.cpp | 7 +++++++
 radio/src/targets/sky9x/board_sky9x.h   | 1 +
 2 files changed, 8 insertions(+)

diff --git a/radio/src/targets/sky9x/board_sky9x.cpp b/radio/src/targets/sky9x/board_sky9x.cpp
index 4f8249077..1398a4888 100644
--- a/radio/src/targets/sky9x/board_sky9x.cpp
+++ b/radio/src/targets/sky9x/board_sky9x.cpp
@@ -590,3 +590,10 @@ void checkTrainerSettings()
   }
 }
 
+uint16_t getBatteryVoltage()
+{
+  int32_t instant_vbat = anaIn(TX_VOLTAGE);  // using filtered ADC value on purpose
+  instant_vbat = (instant_vbat + instant_vbat*(g_eeGeneral.txVoltageCalibration)/128) * 4191;
+  instant_vbat /= 5530;
+  return (uint16_t)instant_vbat;
+}
diff --git a/radio/src/targets/sky9x/board_sky9x.h b/radio/src/targets/sky9x/board_sky9x.h
index 72a7033aa..258cde686 100644
--- a/radio/src/targets/sky9x/board_sky9x.h
+++ b/radio/src/targets/sky9x/board_sky9x.h
@@ -228,6 +228,7 @@ enum Analogs {
 void adcInit();
 void adcRead(void);
 uint16_t getAnalogValue(uint8_t index);
+uint16_t getBatteryVoltage();   // returns current battery voltage in 10mV steps
 void setSticksGain(uint8_t gains);
 
 // Buzzer driver