From d40057ebbd54a031444ca1e8c006a72d19d09a32 Mon Sep 17 00:00:00 2001
From: richonguzman <richon2001@hotmail.com>
Date: Thu, 6 Jul 2023 00:14:26 -0400
Subject: [PATCH] 1.1

---
 README.md               |  4 ++--
 src/LoRa_APRS_iGate.cpp |  3 +++
 src/battery_utils.cpp   | 22 ++++++++++++++++++++++
 src/battery_utils.h     | 12 ++++++++++++
 src/pins_config.h       |  2 ++
 5 files changed, 41 insertions(+), 2 deletions(-)
 create mode 100644 src/battery_utils.cpp
 create mode 100644 src/battery_utils.h

diff --git a/README.md b/README.md
index 3c6b982..438a83a 100644
--- a/README.md
+++ b/README.md
@@ -74,7 +74,7 @@ g) BME section:
 __________________________________________
 
 LoRa APRS iGATE/Digirepeater working on this boards:
-- LILYGO ESP32 LoRa32 v2-1-1.6
+- LILYGO ESP32 LoRa32 v2-1-1.6  and T3
 - ESP32 Wroom +  SX1278 LoRa Module for a DIY Version.
 - HELTEC_WIFI_LORA_32_V2 (check "pins_config.h" and "display.cpp" for aditional configuration).
 __________________________________________
@@ -91,7 +91,7 @@ Versions:
 - 2023.06.12 Syslog added.
 - 2023.06.17 Support for BME280 Module (Temperature, Humidity, Pressure) added.
 - 2023.06.18 Info on Oled Screen mayor update, added RSSI and Distance to Listened Station.
-- 2023.06.19 Failsafe mods to configuration to ensure correct OTA updates.
+- 2023.07.05 Adding monitor info of Battery connected
 __________________________________________
 
 Special Thanks to the help in testing and developing to Manfred (DC2MH) , for showing me the "way of good coding" to Tihomir (CA3TSK) and much more Ham Licence Ops all over the world.
diff --git a/src/LoRa_APRS_iGate.cpp b/src/LoRa_APRS_iGate.cpp
index dc0cdac..282dafe 100644
--- a/src/LoRa_APRS_iGate.cpp
+++ b/src/LoRa_APRS_iGate.cpp
@@ -32,6 +32,8 @@ uint32_t        lastBeaconTx        = 0;
 uint32_t        previousWiFiMillis  = 0;
 uint32_t        lastScreenOn        = millis();
 
+String          batteryVoltage;
+
 std::vector<String> lastHeardStation;
 std::vector<String> lastHeardStation_temp;
 
@@ -39,6 +41,7 @@ String firstLine, secondLine, thirdLine, fourthLine, fifthLine, sixthLine, seven
 
 void setup() {
   Serial.begin(115200);
+  pinMode(batteryPin, INPUT);
   pinMode(greenLed, OUTPUT);
   delay(1000);
   Utils::setupDisplay();
diff --git a/src/battery_utils.cpp b/src/battery_utils.cpp
new file mode 100644
index 0000000..c259b3e
--- /dev/null
+++ b/src/battery_utils.cpp
@@ -0,0 +1,22 @@
+#include "battery_utils.h"
+#include "pins_config.h"
+
+extern String   batteryVoltage;
+
+float adcReadingTransformation = (4095/3.3);
+
+namespace BATTERY_Utils {
+
+String checkVoltages() {
+    float sample;
+    int sampleSum = 0;
+    for (int i=0; i<100; i++) {
+        sample = analogRead(batteryPin);
+        sampleSum += sample;
+        delayMicroseconds(50); 
+    }
+    batteryVoltage = 2.1571 *(sampleSum/100) * adcReadingTransformation;
+    return String(batteryVoltage);
+}
+
+}
\ No newline at end of file
diff --git a/src/battery_utils.h b/src/battery_utils.h
new file mode 100644
index 0000000..78b52a1
--- /dev/null
+++ b/src/battery_utils.h
@@ -0,0 +1,12 @@
+#ifndef BATTERY_UTILS_H_
+#define BATTERY_UTILS_H_
+
+#include <Arduino.h>
+
+namespace BATTERY_Utils {
+
+String checkVoltages();
+
+}
+
+#endif
\ No newline at end of file
diff --git a/src/pins_config.h b/src/pins_config.h
index 08dea52..b3478cf 100644
--- a/src/pins_config.h
+++ b/src/pins_config.h
@@ -15,6 +15,8 @@
 
 #define greenLed    25      // Green Led
 
+#define batteryPin  35
+
 /* (Same pins for LILYGO LoRa32 and ESP32 Wroom Dev )
 SX1278-------------------> ESP32 ttgo-lora32-v21 and ESP32 WROOM Dev
 GND                         GND