Waveshare E- მელნის ჩვენების ზუსტი ვოლტმეტრი (0-90v DC) არდუინო ნანოსთან ერთად: 3 ნაბიჯი

2024 ავტორი: John Day | [email protected]. ბოლოს შეცვლილი: 2024-01-30 10:15

ამ ინსტრუქციაში, მე ვიყენებ 2.9”Waveshare E-Paper დისპლეით Arduino Nano– ით, ძაბვის გამყოფით და ADS1115– ით, რათა გამოვავლინო ზუსტი ძაბვები 90 ვოლტამდე DC ელექტრონული ქაღალდის ეკრანზე.

ეს ინსტრუქცია აერთიანებს ამ ორ წინა პროექტს:

-Arduino Volt Meter (0-100V DC)-ვერსია 2-https://www.instructables.com/Arduino-Volt-Meter-0…

-ელექტრონული ქაღალდის ჩვენება ნაწილობრივი განახლება Arduino– ით-https://www.instructables.com/E-Paper-Display-Part…

მარაგები

გამოყენებული მასალები:

1 x Arduino Nano -

1 x Waveshare ჩვენება -

პურის დაფა და მავთულები -

USB დენის ბანკი -

1 x ADS 1115 - 16 ბიტიანი ADC -

1 x 1/4W (მე ვთავაზობ 1W რეზისტორების გამოყენებას) 1% რეზისტორები - 690k ohm -

1 x 1/4W (მე ვთავაზობ 1W რეზისტორების გამოყენებას) 1% რეზისტორები - 10k ohm -

Astro AI DM6000AR -

9V ბატარეები -

CanadianWinters არის Amazon Services LLC Associates პროგრამის მონაწილე, შვილობილი სარეკლამო პროგრამა, რომელიც შექმნილია იმისთვის, რომ უზრუნველყოს საიტებზე საფასურის გამომუშავება Amazon.com– თან და მასთან დაკავშირებულ საიტებთან დაკავშირებით. ამ ბმულების გამოყენებით, როგორც ამაზონის ასოცირებული, მე ვიღებ შემოსავალს შესარჩევი შესყიდვებიდან, თუნდაც სხვა რამის ყიდვა-და ეს არაფერს დაგიჯდებათ.

ნაბიჯი 1: მოდით დავაკავშიროთ კომპონენტები

მე დავაკავშირე კომპონენტები შემდეგნაირად:

ტალღის გაზიარების ჩვენება:

არდუინოს ჩვენება

ავტობუსი D7

RST D8

DC D9

CS D10

DIN D11

CLK D13

GND GND

VCC 3.3V

ADS1115:

ADS1115 არდუინო

VCC 5V

GND GND

ADDR GND

SCL A5

SDA A4

AIN0 ძაბვის გამყოფი

ძაბვის გამყოფისთვის ამჯერად გამოვიყენე 680Kohm და 10Kohm რეზისტორები. მე ყოველთვის ვზომავ წინააღმდეგობის მნიშვნელობებს უკეთესი სიზუსტისთვის.

ძაბვის გამყოფის გამოთვლები ხელმისაწვდომია ამ ცხრილში, რომელიც ავტომატიზირებს გამოთვლებს იმ შემთხვევაში, თუ გსურთ გამოიყენოთ სხვადასხვა რეზისტორის მნიშვნელობა: ბმული Google Sheet- თან. გთხოვთ გაითვალისწინოთ, რომ ფაილი არ არის რედაქტირებადი, თქვენ უნდა გადმოწეროთ ან გააკეთოთ ასლი თქვენს დისკზე, რომ შეძლოთ მისი შეცვლა.

ნაბიჯი 2: კოდი

ეკრანისა და ADC– ის კოდი საკმაოდ დიდია და არდუინოზე საკმარისი მეხსიერება არ იქნება, თუ ეკრანზე დიდ სიმბოლოებს გამოვიყენებ.

ამის გადასაჭრელად, მე გადავაქციე ტექსტი კოდში ტექსტის შემცველი სურათის შექმნით და შემდეგ ამ ონლაინ ინსტრუმენტის გამოყენებით გადავიყვანე სურათი არდუინოს მიერ წაკითხულ კოდზე:

მე მაინც ვიყენებდი რამდენიმე შრიფტს და სიმბოლოს, მაგრამ მე ვიყენებ მხოლოდ შრიფტს, რომელიც შეიცავს რიცხვებს ბატარეის ძაბვისა და დატენვის პროცენტის გამოსახატად მეხსიერების დაზოგვის მიზნით.

ეს კოდი აჩვენებს ბატარეის ძაბვას და აჩვენებს დატენვის პროცენტს, ვარაუდობენ, რომ 90 ვ ბატარეა იტენება და რომ 0 ვ ბატარეა მთლიანად გაბერილია. ეს შეიძლება შეიცვალოს თქვენი საჭიროებების შესაბამისად.

// საბაზისო კლასი GxEPD2_GFX შეიძლება გამოყენებულ იქნას მითითების ან მითითების ჩვენების ჩვენებაზე, როგორც პარამეტრი, იყენებს ~ 1.2k მეტ კოდს

// ჩართეთ ან გამორთეთ GxEPD2_GFX საბაზო კლასი #განსაზღვრეთ ENABLE_GxEPD2_GFX 0 #მოიცავს #მოიცავს #მოიცავს #მოიცავს #მოიცავს #მოიცავს Adafruit_ADS1115 რეკლამებს (0x48); // ADC #თუ განისაზღვრება (_ AVR) #განსაზღვრეთ MAX_DISPLAY_BUFFER_SIZE 800 // #განსაზღვრეთ MAX_HEIGHT (EPD) (EPD:: HEIGHT <= MAX_DISPLAY_BUFFER_SIZE / (EPD:: WIDTH / 8F) / EPD EPD:: WIDTH/ 8)) GxEPD2_BW ჩვენება (GxEPD2_290 (/*CS = 10*/ SS,/*DC =*/ 9,/*RST =*/ 8,/*BUSY =*/ 7)); #endif U8G2_FOR_ADAFRUIT_GFX u8g2 ფონტები; void setup () {Serial.begin (115200); Serial.println (); Serial.println ("კონფიგურაცია"); ads.begin (); display.init (); u8g2Fonts. დავიწყო (ჩვენება); // u8g2 პროცედურების დაკავშირება Adafruit GFX showbitmaps- თან (); დაგვიანება (500); Serial.println ("დაყენება დასრულებულია"); } void loop () {ღირებულებები (); დაგვიანება (1000); } // 'charging-icon-c', 128x40px const unsigned char Bat PROGMEM = {0xff, 0xff, 0xf0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0f, 0xff, 0xff, 0xff, 0xff, 0xff, 0xf0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x07, 0xff, 0xff, 0xff, 0xff, 0xff, 0xf0, 0x00, 0x00, 0x00, 0x00, 0x00 0x00, 0x00, 0x00, 0x00, 0x07, 0xff, 0xff, 0xff, 0xff, 0xff, 0xf0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x07, 0xff, 0xff, 0xff, 0xff, 0xf0, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x87, 0xff, 0xff, 0xff, 0xff, 0xff, 0xf0, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,, 0xff, 0xff, 0x87, 0xff, 0xff, 0xff, 0xff, 0xff, 0xf0, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x87, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x87, 0xff, 0xff, 0xff, 0xff, 0xff, 0xf0, 0xf8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1f, 0x87, 0xff, 0xff, 0xff, 0xff, 0xff, 0xf0, 0xf8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 0x0f, 0x80, 0x07, 0xff, 0xff, 0xff, 0xff, 0xf0, 0xf8, 0x00, 0x00, 0x00, 0x01, 0xc0, 0x00, 0x00, 0x0f, 0x80, 0x07, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x0f, 0xc0, 0x00, 0x00, 0x0f, 0x80, 0x07, 0xff, 0xff, 0xff, 0xff, 0xf0, 0xf8, 0x00, 0x00, 0x00, 0x3f, 0x80, 0x00, 0x00, 0x0f, 0x80 0x07, 0xff, 0xff, 0xff, 0xff, 0xf0, 0xf8, 0x00, 0x00, 0x01, 0xff, 0x80, 0x00, 0x00, 0x0f, 0x80, 0x07, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,, 0x07, 0xff, 0x00, 0x00, 0x00, 0x0f, 0x87, 0xc7, 0xff, 0xff, 0xff, 0xff, 0xf0, 0xf8, 0x00, 0x00, 0x3f, 0xff, 0x00, 0x00, 0x00, 0x0f, 0x87, 0xc7, 0xff, 0xff, 0xff, 0xff, 0xf0, 0xf8, 0x00, 0x00, 0xff, 0xff, 0x00, 0x00, 0x00, 0x0f, 0x87, 0xc7, 0xff, 0xff, 0xff, 0xff, 0xf0, 0xf8, 0x00, 0x07, 0xff, 0xfe, 0x00, 0x00, 0x00, 0x0f, 0x87, 0xc7, 0xff, 0xff, 0xff, 0xff, 0xf0, 0xf8, 0x00, 0x1f, 0xff, 0xff, 0xff, 0xff, 0x80, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,, 0xff, 0xf0, 0xf8, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x0f, 0x87, 0xc7, 0xff, 0xff, 0xff, 0xff ff, 0xf0, 0xf8, 0x01, 0xff, 0xff, 0xff, 0xff, 0xfc, 0x00, 0x0f, 0x87, 0xc7, 0xff, 0xff, 0xff, 0xff, 0xf0, 0xf8, 0x00, 0x00, 0x00, 0x7f, 0xff, 0xe0, 0x00, 0x0f, 0x87, 0xc7, 0xff, 0xff, 0xff, 0xff, 0xf0, 0xf8, 0x00, 0x00, 0x00, 0xff, 0xff, 0x80, 0x00, 0x0f, 0x87, 0xc7, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xf8, 0x00, 0x00, 0x00, 0xff, 0xfc, 0x00, 0x00, 0x0f, 0x87, 0xc7, 0xff, 0xff, 0xff, 0xff, 0xf0, 0xf8, 0x00, 0x00, 0x01, 0xff, 0xff, 0xff, 0xff, 0xf, 0xff, 0xf, 0xff, 0x87, 0xc7, 0xff, 0xff, 0xff, 0xff, 0xf0, 0xf8, 0x00, 0x00, 0x01, 0xff, 0x80, 0x00, 0x00, 0x0f, 0x87, 0xc7, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x01, 0xfe, 0x00, 0x00, 0x00, 0x0f, 0x80, 0x07, 0xff, 0xff, 0xff, 0xff, 0xf0, 0xf8, 0x00, 0x00, 0x03, 0xf0, 0x00, 0x00, 0x00, 0x0f, 0x80, 0x07, 0xff, 0xff, 0xff, 0xff, 0xf0, 0xf8, 0x00, 0x00, 0x03, 0xc0, 0x00, 0x00, 0x00, 0x0f, 0x80, 0x07, 0xff, 0xff, 0xff, 0xff, 0xf0, 0xf8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0f, 0x80, 0x07, 0xff, 0xff, 0xff, 0xff, 0xf0, 0xf8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0f, 0x87, 0xff, 0xff, 0xff, 0xff, 0xff, 0xf0, 0xfc, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1f, 0x87, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff 0xff, 0xf0, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x87, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff 0xff, 0xff, 0x87, 0xff, 0xff, 0xff, 0xff, 0xff, 0xf0, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x87, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x07, 0xff, 0xff, 0xff, 0xff, 0xff, 0xf0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x07, 0xff, 0xff, 0xff, 0xff, 0xff, 0xf0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x07, 0xff, 0xff, 0xff, 0xff, 0xff, 0xf0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x07, 0xff, 0xff, 0xff, 0xff, 0xff, 0xf8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1f, 0xff, 0xff, 0xff}; const unsigned char battext PROGMEM = {// 'logisoso_epaper_volts_simple4, 128x145px 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff 0xff, 0xff, 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0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xf 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff}; // ეს ფუნქცია ხატავს სურათებს void showbitmaps () {uint16_t bg = GxEPD_WHITE; uint16_t fg = GxEPD_BLACK; display.firstPage (); გააკეთე {display.fillScreen (bg); display.drawImage (battext, 0, 60, 128, 145, false, 0, true); // ტექსტი (y ქვემოდან, x მარცხნიდან, სიმაღლე y, სიგრძე x, საპირისპირო_ფერი (ჭეშმარიტი/მცდარი), როტაცია (0, 1), გამჭვირვალობა? (ჭეშმარიტი/მცდარი)) ჩვენება. drawImage (Bat, 0, 5, 128, 40, მცდარი, 0, ჭეშმარიტი); // ბატარეის ხატი} while (display.nextPage ()); } // ეს ფუნქცია ითვლის და ბეჭდავს მნიშვნელობებს ჩვენების void ღირებულებებზე () {float battV; // ბატარეის ძაბვის მოძრავი პერკი; // ბატარეა % int calib = 7; // ADS1115- ის დაკალიბრების მნიშვნელობა შეცდომის მცურავი ძაბვის შესამცირებლად = 0; // გამოიყენება ძაბვის მნიშვნელობის float Radjust = 0.01437283477 შესანახად; // ძაბვის გამყოფი ფაქტორი (R2 / R1+R2) R1 ~ 690k და R2 ~ 10k int16_t adc0; // 16 ბიტიანი ADC წაკითხვის შესასვლელი A0 adc0 = ads.readADC_SingleEnded (0); ძაბვა = ((adc0 + calib) * 0.1875)/1000; battV = ძაბვა/გასწორება; // გამოთვალეთ ბატარეა % perc = (battV/ 90) * 100; // ჩვენ ვივარაუდოთ, რომ ბატარეის მაქსიმალური ძაბვაა 90 ვ // შეინახეთ ბატარეა % 2-ნიშანი მაქსიმუმი, რათა თავიდან აიცილოთ ჩვენების პრობლემები, თუ (perc> = 100) {perc = 99; } display.setRotation (1); // 0 როტაცია არ არის, 1 ბრუნვა 90 გრადუს uint16_t bg = GxEPD_WHITE; uint16_t fg = GxEPD_BLACK; u8g2Fonts.setFontMode (1); // გამოიყენეთ u8g2 გამჭვირვალე რეჟიმი (ეს ნაგულისხმევია) u8g2Fonts.setFontDirection (0); // მარცხნიდან მარჯვნივ (ეს არის ნაგულისხმევი) u8g2Fonts.setForegroundColor (fg); // გამოიყენეთ Adafruit GFX ფერი u8g2Fonts.setBackgroundColor (bg); // გამოიყენეთ Adafruit GFX ფერი u8g2Fonts.setFont (u8g2_font_logisoso32_tn); // ან u8g2_font_logisoso32_tr ან u8g2_font_logisoso32_tn display.setPartialWindow (203, 0, 100, 128); // (x მარცხნიდან, y ზემოდან, სიგრძე x, სიმაღლე y) ეს ადგენს ფანჯარას მნიშვნელობებისთვის ნაწილობრივი განახლება display.firstPage (); გააკეთე {display.fillScreen (bg); // ბატარეის ძაბვის ამობეჭდვა u8g2Fonts.setCursor (205, 52); u8g2Fonts.print (battV, 1); // ბატარეის დაბეჭდვა % u8g2Fonts.setCursor (205, 110); u8g2Fonts.print (perc, 0); } while (display.nextPage ()); }

ნაბიჯი 3: მოდით გამოვცადოთ:)

საკმაოდ კმაყოფილი ვარ შედეგებით.

მე შევძელი მრავალი ძაბვის შემოწმება დაახლოებით 9 ვ -დან 85 ვ -მდე, მინიმალური გადახრით (0.2 ვოლტზე ნაკლები) ფაქტობრივი ძაბვისგან.

მას შემდეგ რაც შეფუთავთ ლამაზ სათავსოში, ეს უნდა გახადოს ლამაზი პატარა ვოლტმეტრი, რომლის წაკითხვა შესაძლებელია ძალიან ნათელ გარემოში:).