Files
voltage-current-monitor-usb/voltage-current-monitor-usb.ino
T

278 lines
6.6 KiB
Arduino

//Library inclusions
#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.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
#define SCREEN_HEIGHT 64
#define OLED_RESET -1
#define SCREEN_ADDRESS 0x3C
//variable definitions
float voltage = 0;
float current = 0;
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);
//sets i2c pins
Wire.setSDA(I2C_SDA);
Wire.setSCL(I2C_SCL);
//i2c start
Wire.begin();
//display init
if(!display.begin(SSD1306_SWITCHCAPVCC, SCREEN_ADDRESS)){
Serial.println("Display Error: Check Connections");
Serial.print("SDA=");
Serial.println(I2C_SDA);
Serial.print("SCL:");
Serial.println(I2C_SCL);
while(true){
delay(100);
}
}
}
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
void drawDisplay() {
if(!use_default_fonts){
display.clearDisplay();
display.setTextColor(WHITE);
display.setTextSize(1);
if(use_7seggchan){
display.setFont(&DSEG7_7SEGGCHAN_MINI_Regular_48);
display.setCursor(84, 66);
if(usb_score == -1){
display.println("-");
}
else if (usb_score == -2) {
display.println(" ");
}
else {
display.println(usb_score);
}
display.drawFastVLine(80,16,48,WHITE);
}
display.drawFastHLine(0,16,128,WHITE);
display.setCursor(0,64);
display.setFont(&DialogInput_plain_12);
display.print("W:");
display.setCursor(0, 48);
display.print("A:");
display.setCursor(0,32);
display.print("V:");
display.setFont(&DSEG7_Classic_Mini_Regular_11);
display.setCursor(13, 64);
display.print(wattage);
display.setCursor(13,48);
display.print(current);
display.setCursor(13,32);
display.print(voltage);
if(use_bitmaps){
display.setCursor(16,0);
display.drawBitmap(0,0,temperature_bitmap,16,16,WHITE);
display.setFont(&DSEG7_Classic_Mini_Regular_11);
display.setCursor(16,16);
}
else {
display.setCursor(0,16);
}
display.print(analogReadTemp(),1);
display.print(" C°");
if(use_bitmaps){
display.drawBitmap(65,0,clock_bitmap,16,16,WHITE);
display.setCursor(82,16);
}
else{
display.setCursor(82,16);
}
display.drawFastVLine(62,0,16,WHITE);
if(uptime_min<10){
display.print("0");
}
display.print(uptime_min);
display.print(":");
display.setFont(&DSEG7_Classic_Mini_Regular_11);
if(uptime_sec < 10){
display.print("0");
}
display.print(uptime_sec);
display.display();
}
else {
display.clearDisplay();
display.drawFastHLine(0,16,128,WHITE);
display.setTextColor(WHITE);
display.setTextSize(1);
display.setCursor(0,56);
display.setFont(NULL);
display.print("W:");
display.setCursor(0, 44);
display.print("A:");
display.setCursor(0,32);
display.print("V:");
display.setFont(NULL);
display.setCursor(13, 56);
display.print(wattage);
display.setCursor(13,44);
display.print(current);
display.setCursor(13,32);
display.print(voltage);
if(use_bitmaps){
display.setCursor(16,0);
display.drawBitmap(0,0,temperature_bitmap,16,16,WHITE);
display.setFont(NULL);
display.setCursor(16,8);
}
else {
display.setCursor(0,8);
}
display.print(analogReadTemp(),1);
display.print(" C");
if(use_bitmaps){
display.setCursor(16,0);
display.drawBitmap(0,0,temperature_bitmap,16,16,WHITE);
display.setCursor(16,16);
}
else {
display.setCursor(0,8);
}
if(use_bitmaps){
display.drawBitmap(65,0,clock_bitmap,16,16,WHITE);
display.setCursor(82,8);
}
else{
display.setCursor(94,8);
}
display.drawFastVLine(62,0,16,WHITE);
if(uptime_min<10){
display.print("0");
}
display.print(uptime_min);
display.print(":");
display.setFont(NULL);
if(uptime_sec < 10){
display.print("0");
}
display.print(uptime_sec);
display.display();
}
}
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();
}
}