From 736a07feff71c0d9d552b09907101da1a37b6f83 Mon Sep 17 00:00:00 2001
From: vicentebearth <bearthvicente@gmail.com>
Date: Thu, 23 Jul 2026 14:15:52 +0200
Subject: [PATCH] Made Uptime counter work and added some comments

---
 voltage-current-monitor-usb.ino | 109 +++++++++++++++++++++++++++++---
 1 file changed, 101 insertions(+), 8 deletions(-)

diff --git a/voltage-current-monitor-usb.ino b/voltage-current-monitor-usb.ino
index 5f776b1..52f7b19 100644
--- a/voltage-current-monitor-usb.ino
+++ b/voltage-current-monitor-usb.ino
@@ -2,13 +2,13 @@
 #include <Wire.h>
 #include <Adafruit_GFX.h>
 #include <Adafruit_SSD1306.h>
-#include <Fonts/FreeMono9pt7b.h>
-#include "setup.h"
-#include "dseg7_7seggchan_mini_font_48p_regular.h"
-#include "dseg7_classic_mini_font_11p_regular.h"
-#include "DialogInput_font_12p_regular.h"
-#include <hardware/adc.h>
-#include "images.h"
+#include <Fonts/FreeMono9pt7b.h>//not needed, idk why its here
+#include "setup.h" //setup file, dont delete, else needed variables wont be declared
+#include "dseg7_7seggchan_mini_font_48p_regular.h"//7segg-chan lives here! (fontfile, comment out if 7segg-chan is disabled (i told you not to >:( ) or default fonts are enabled))
+#include "dseg7_classic_mini_font_11p_regular.h"//font, comment out or delete if default fonts are enabled
+#include "DejaVu_Sans_Mono_font_12p_regular.h"//font, comment out or delete if default fonts are enabled
+#include <hardware/adc.h> //files for adc
+#include "images.h"//bitmaps, comment out or delete if bitmaps are disabled
 
 //screen definitions
 #define SCREEN_WIDTH 128
@@ -23,11 +23,19 @@ float wattage = 0;
 int usb_score = 8;
 int uptime_min = 0;
 int uptime_sec = 0;
+int raw_voltage = 0;
+int raw_current = 0;
+int counter = 0;
+unsigned long old_millis = 0;
+unsigned long old_millis_clock = 0;
 
 
 Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);
 
 void setup() {
+  old_millis = millis();
+  old_millis_clock = millis();
+  analogReadResolution(12);
   //adc_init();
   //adc_set_temp_sensor_enabled(true);
   Serial.begin(115200);
@@ -52,8 +60,21 @@ void setup() {
 }
 
 void loop() {
+  raw_voltage = analogRead(VOLTAGE_PIN);
+  voltage = (raw_voltage / 4095.0) * 3.3 * voltage_divider;
+  raw_current = analogRead(CURRENT_PIN);
+  current = (raw_current / 4095.0) * 3.3 * 20 ;
+  wattage = current * voltage;
+  if(use_usbscore){
+    usb_score = calculateUSBScore();
+  }
+  else{
+    usb_score = default_usbscore;
+  }
   drawDisplay();
-
+  runCounter(1000);
+  countUptime();
+  delay(100);
 }
 
 //display draw function
@@ -76,6 +97,7 @@ void drawDisplay() {
      }
      display.drawFastVLine(80,16,48,WHITE);
     }
+
    display.drawFastHLine(0,16,128,WHITE);
    display.setCursor(0,64);
    display.setFont(&DialogInput_plain_12);
@@ -183,3 +205,74 @@ void drawDisplay() {
   }
 }
 
+int calculateUSBScore(){ //returns score depending on usb voltage, gets displayed as 7segg-chan
+   if(voltage < 3 || voltage > 8){
+    if(counter == 0){
+      return -1 ;
+    }
+    else {
+      return -2 ;
+    }
+  }
+  else if (voltage <3.5 || voltage > 6.5){
+    return 0 ;
+  }
+  else if(voltage < 3.7 || voltage > 6.3){
+    return 1 ;
+  }
+  else if (voltage < 4 || voltage > 6) {
+    return 2 ;
+  }
+  else if (voltage < 4.2 || voltage > 5.8 ){
+    return 3 ;
+  }
+  else if (voltage < 4.4 || voltage > 5.6){
+    return 4 ;
+  }
+  else if (voltage < 4.6 || voltage > 5.4){
+    return 5;
+  }
+  else if (voltage < 4.7 || voltage > 5.3){
+    return 6;
+  }
+  else if (voltage < 4.8 || voltage > 5.2){
+    return 7 ;
+  }
+  else if (voltage < 4.9 || voltage > 5.1){
+    return 8 ;
+  }
+  else if (voltage < 5.1 || voltage > 4.9){
+    return 9 ;
+  }
+  else {
+    return -1 ;
+  }
+}
+//counter for any blink animations
+void runCounter(int time){
+  if (millis() > old_millis + time){
+    if(counter == 0){
+     counter = counter + 1;
+    }
+    else {
+      counter = 0;
+    }
+    old_millis = millis();
+  }
+}
+
+//counts uptime
+void countUptime(){
+  if (old_millis_clock+1000 < millis()){//old millidonalds had a farm heia heya hoo
+   uptime_sec =uptime_sec + 1;
+   if (uptime_sec >59){
+    uptime_sec = 0;
+    uptime_min = uptime_min +1;
+   }
+   if (uptime_min > 99){
+    uptime_min = 0;
+    uptime_sec = 0;
+   }
+   old_millis_clock = millis();
+  }
+}
\ No newline at end of file