Final Project for ECE-4180 Fall 2022. Interface with ENS160 AQI sensor and display the readings on uLCD.
Dependencies: 4DGL-uLCD-SE ENS160_Library mbed PinDetect mbed-rtos
Revision 10:112572fbb168, committed 19 months ago
- Comitter:
- krishnamvs
- Date:
- Tue Dec 06 21:23:57 2022 +0000
- Parent:
- 9:f20983c914aa
- Child:
- 11:03f86b377280
- Commit message:
- V1
Changed in this revision
| ENS160_Library.lib | Show annotated file Show diff for this revision Revisions of this file |
| main.cpp | Show annotated file Show diff for this revision Revisions of this file |
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/ENS160_Library.lib Tue Dec 06 21:23:57 2022 +0000 @@ -0,0 +1,1 @@ +https://os.mbed.com/users/krishnamvs/code/ENS160_Library/#63ff52373e71
--- a/main.cpp Wed Oct 28 15:06:56 2015 +0000
+++ b/main.cpp Tue Dec 06 21:23:57 2022 +0000
@@ -1,171 +1,63 @@
-// uLCD-144-G2 demo program for uLCD-4GL LCD driver library
-//
#include "mbed.h"
+#include "ens160_i2c.h"
#include "uLCD_4DGL.h"
-uLCD_4DGL uLCD(p9,p10,p11); // serial tx, serial rx, reset pin;
+ENS160 myENS(p9, p10, ENS160_ADDRESS_HIGH);
+DigitalOut myled(LED1);
+Serial pc(USBTX, USBRX);
+uLCD_4DGL uLCD(p28,p27,p30); // serial tx, serial rx, reset pin;
+
+bool printedCompensation = false;
+int ensStatus;
+
+float rh;
+float tempC;
int main()
{
- // basic printf demo = 16 by 18 characters on screen
- uLCD.printf("\nHello uLCD World\n"); //Default Green on black text
- uLCD.printf("\n Starting Demo...");
- uLCD.text_width(4); //4X size text
- uLCD.text_height(4);
- uLCD.color(RED);
- for (int i=10; i>=0; --i) {
- uLCD.locate(1,2);
- uLCD.printf("%2D",i);
- wait(.5);
- }
- uLCD.cls();
- uLCD.printf("Change baudrate......");
- uLCD.baudrate(3000000); //jack up baud rate to max for fast display
- //if demo hangs here - try lower baud rates
- //
- // printf text only full screen mode demo
- uLCD.background_color(BLUE);
- uLCD.cls();
- uLCD.locate(0,0);
- uLCD.color(WHITE);
- uLCD.textbackground_color(BLUE);
- uLCD.set_font(FONT_7X8);
- uLCD.text_mode(OPAQUE);
- int i=0;
- while(i<64) {
- if(i%16==0) uLCD.cls();
- uLCD.printf("TxtLine %2D Page %D\n",i%16,i/16 );
- i++; //16 lines with 18 charaters per line
+ if (!myENS.init())
+ {
+ pc.printf("Hello, ENS160! Reading raw data from registers...\n");
+ while(1);
}
- wait(0.5);
- //demo graphics commands
- uLCD.background_color(BLACK);
- uLCD.cls();
- uLCD.background_color(DGREY);
- uLCD.filled_circle(60, 50, 30, 0xFF00FF);
- uLCD.triangle(120, 100, 40, 40, 10, 100, 0x0000FF);
- uLCD.line(0, 0, 80, 60, 0xFF0000);
- uLCD.filled_rectangle(50, 50, 100, 90, 0x00FF00);
- uLCD.pixel(60, 60, BLACK);
- uLCD.read_pixel(120, 70);
- uLCD.circle(120, 60, 10, BLACK);
- uLCD.set_font(FONT_7X8);
- uLCD.text_mode(TRANSPARENT);
- uLCD.text_bold(ON);
- uLCD.text_char('B', 9, 8, BLACK);
- uLCD.text_char('I',10, 8, BLACK);
- uLCD.text_char('G',11, 8, BLACK);
- uLCD.text_italic(ON);
- uLCD.text_string("This is a test of string", 1, 4, FONT_7X8, WHITE);
- wait(2);
-
-//Bouncing Ball Demo
- float fx=50.0,fy=21.0,vx=1.0,vy=0.4;
- int x=50,y=21,radius=4;
- uLCD.background_color(BLACK);
- uLCD.cls();
- //draw walls
- uLCD.line(0, 0, 127, 0, WHITE);
- uLCD.line(127, 0, 127, 127, WHITE);
- uLCD.line(127, 127, 0, 127, WHITE);
- uLCD.line(0, 127, 0, 0, WHITE);
- for (int i=0; i<1500; i++) {
- //draw ball
- uLCD.filled_circle(x, y, radius, RED);
- //bounce off edge walls and slow down a bit?
- if ((x<=radius+1) || (x>=126-radius)) vx = -.90*vx;
- if ((y<=radius+1) || (y>=126-radius)) vy = -.90*vy;
- //erase old ball location
- uLCD.filled_circle(x, y, radius, BLACK);
- //move ball
- fx=fx+vx;
- fy=fy+vy;
- x=(int)fx;
- y=(int)fy;
- }
+ if( myENS.setOperatingMode(SFE_ENS160_RESET) )
+ pc.printf("Ready.\n");
+ wait(0.1);
+ myENS.setOperatingMode(SFE_ENS160_IDLE);
wait(0.5);
-//draw an image pixel by pixel
- int pixelcolors[50][50];
- uLCD.background_color(BLACK);
- uLCD.cls();
-//compute Mandelbrot set image for display
-//image size in pixels
- const unsigned ImageHeight=128;
- const unsigned ImageWidth=128;
- //"c" region to display
- double MinRe = -0.75104;
- double MaxRe = -0.7408;
- double MinIm = 0.10511;
- double MaxIm = MinIm+(MaxRe-MinRe)*ImageHeight/ImageWidth;
- double Re_factor = (MaxRe-MinRe)/(ImageWidth-1);
- double Im_factor = (MaxIm-MinIm)/(ImageHeight-1);
- unsigned MaxIterations = 2048;
- for(unsigned y=0; y<ImageHeight; ++y) {
- double c_im = MaxIm - y*Im_factor;
- for(unsigned x=0; x<ImageWidth; ++x) {
- double c_re = MinRe + x*Re_factor;
- double Z_re = c_re, Z_im = c_im;
- int niterations=0;
- for(unsigned n=0; n<MaxIterations; ++n) {
- double Z_re2 = Z_re*Z_re, Z_im2 = Z_im*Z_im;
- if(Z_re2 + Z_im2 > 4) {
- niterations = n;
- break;
- }
- Z_im = 2*Z_re*Z_im + c_im;
- Z_re = Z_re2 - Z_im2 + c_re;
+ myENS.setOperatingMode(SFE_ENS160_STANDARD);
+ ensStatus = myENS.getFlags();
+ pc.printf("Gas Sensor Status Flag: ");
+ pc.printf("%d\n", ensStatus);
+ while (1)
+ {
+ if( myENS.checkDataStatus() )
+ {
+ if( printedCompensation == false)
+ {
+ pc.printf("---------------------------\n");
+ pc.printf("Compensation Temperature: ");
+ pc.printf("%f\n", myENS.getTempCelsius());
+ pc.printf("---------------------------");
+ pc.printf("Compensation Relative Humidity: ");
+ pc.printf("%f\n", myENS.getRH());
+ pc.printf("---------------------------\n");
+ printedCompensation = true;
+ wait(0.5);
}
- if (niterations!=(MaxIterations-1))
- uLCD.pixel(x,y,((niterations & 0xF00)<<12)+((niterations & 0xF0)<<8)+((niterations & 0x0F)<<4) );
+
+ pc.printf("Air Quality Index (1-5) : ");
+ pc.printf("%d\n", myENS.getAQI());
+
+ pc.printf("Total Volatile Organic Compounds: ");
+ pc.printf("%d", myENS.getTVOC());
+ pc.printf("ppb\n");
+
+ pc.printf("CO2 concentration: ");
+ pc.printf("%d", myENS.getECO2());
+ pc.printf("ppm\n");
+
}
- }
- wait(5);
-// PLASMA wave BLIT animation
-//draw an image using BLIT (Block Image Transfer) fastest way to transfer pixel data
- uLCD.cls();
- int num_cols=50;
- int num_rows=50;
- int frame=0;
- double a,b,c=0.0;
- while(frame<75) {
- for (int k=0; k<num_cols; k++) {
- b= (1+sin(3.14159*k*0.75/(num_cols-1.0)+c))*0.5;
- for (int i=0; i<num_rows; i++) {
- a= (1+sin(3.14159*i*0.75/(num_rows-1.0)+c))*0.5;
- // a and b will be a sine wave output between 0 and 1
- // sine wave was scaled for nice effect across array
- // uses a and b to compute pixel colors based on rol and col location in array
- // also keeps colors at the same brightness level
- if ((a+b) <.667)
- pixelcolors[i][k] = (255-(int(254.0*((a+b)/0.667)))<<16) | (int(254.0*((a+b)/0.667))<<8) | 0;
- else if ((a+b)<1.333)
- pixelcolors[i][k] = (0 <<16) | (255-(int (254.0*((a+b-0.667)/0.667)))<<8) | int(254.0*((a+b-0.667)/0.667));
- else
- pixelcolors[i][k] = (int(255*((a+b-1.333)/0.667))<<16) | (0<<8) | (255-(int (254.0*((a+b-1.333)/0.667))));
- }
+ wait(0.1);
}
- uLCD.BLIT(39, 39, 50, 50, &pixelcolors[0][0]);
- c = c + 0.0314159*3.0;
- if (c > 6.2831) c = 0.0;
- frame++;
- }
- //Load Image Demo
- uLCD.cls();
- //SD card needed with image and video files for last two demos
- uLCD.cls();
- uLCD.media_init();
- uLCD.printf("\n\nAn SD card is needed for image and video data");
- uLCD.set_sector_address(0x001D, 0x4C01);
- uLCD.display_image(0,0);
- wait(10);
- //Play video demo
- while(1) {
- uLCD.cls();
- uLCD.media_init();
- uLCD.set_sector_address(0x001D, 0x4C42);
- uLCD.display_video(0,0);
- }
-}
-
-
-
+}
\ No newline at end of file
