From a14c570db0fcfb511c63cdf04cf353f6f09a6cbb Mon Sep 17 00:00:00 2001
From: richonguzman <richon2001@hotmail.com>
Date: Tue, 30 Apr 2024 17:18:02 -0400
Subject: [PATCH] heltecV3 battery readings fix

---
 src/battery_utils.cpp | 4 ++++
 src/power_utils.cpp   | 1 -
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/battery_utils.cpp b/src/battery_utils.cpp
index da3173a..9578453 100644
--- a/src/battery_utils.cpp
+++ b/src/battery_utils.cpp
@@ -24,6 +24,9 @@ namespace BATTERY_Utils {
     float checkBattery() { 
         int sample;
         int sampleSum = 0;
+        #ifdef HELTEC_V3
+        digitalWrite(ADC_CTRL, LOW);
+        #endif
         for (int i = 0; i < 100; i++) {
             #if defined(TTGO_T_LORA32_V2_1) || defined(HELTEC_V2) || defined(HELTEC_HTCT62) || defined(HELTEC_V3) || defined(ESP32_DIY_LoRa_A7670) || defined(TTGO_T_LORA32_V2_1_915)
             sample = analogRead(BATTERY_PIN);
@@ -36,6 +39,7 @@ namespace BATTERY_Utils {
         }
 
         #ifdef HELTEC_V3
+        digitalWrite(ADC_CTRL, HIGH);
         double inputDivider = (1.0 / (390.0 + 100.0)) * 100.0;  // The voltage divider is a 390k + 100k resistor in series, 100k on the low side.
         return (((sampleSum/100) * adcReadingTransformation) / inputDivider) + 0.285; // Yes, this offset is excessive, but the ADC on the ESP32s3 is quite inaccurate and noisy. Adjust to own measurements.
         #else
diff --git a/src/power_utils.cpp b/src/power_utils.cpp
index 5fc6dc4..92442f6 100644
--- a/src/power_utils.cpp
+++ b/src/power_utils.cpp
@@ -130,7 +130,6 @@ namespace POWER_Utils {
         pinMode(VExt_CTRL,OUTPUT); // this is for GPS and TFT screen on Wireless_Tracker and only for Oled in Heltec V3
         digitalWrite(VExt_CTRL, HIGH);
         pinMode(ADC_CTRL, OUTPUT);
-        digitalWrite(ADC_CTRL, HIGH);
         #endif
     }