Pseudo-Medical Monitor

Pseudo-Medical Monitor for Christmas Cheap Gift

In preparation for the expected Christmas Gift availability crisis, I present the Pseudo-Gift of the season. The time honored tradition of knockoff products hitting the market before Christmas is alive and well. What better than a multi-property knockoff device? Star Trek / Arduino / Medical knockoff device gift for everyone. This Pseudo-Medical Tricorder ripoff is the stocking stuffer for 2021.

Operations

• Thermal Image from AMG8833 Sensor.
• Ambient and Object Temperature from MLX90614 Sensor.
• Distance of device from user via VL53L0X Laser TOF Sensor.
• Pulse Rate from MAX30102 Sensor
• Fingerprint Scan image capture from Capacitive Sensor with ID809 processing capabilities.

Parts List

• Arduino Due Generic Clone (alternative: ITEADUINO DUE)

• Arduino Mega Prototype Shield Generic Clone (alternative: KEYESTUDIO)

• MLX90614 Contactless Temperature Sensor Generic Clone (alternative: )

• AMG8833 Thermal Imager Sensor Generic Clone (alternative: TinyCircuits)

• VL53L0X TOF Laser Distance Sensor Generic Clone (alternative: Onyehn)

• MAX30102 Pulse and O2 Saturation Sensor Generic Clone (alternative: MH-ET Live)

• Capacitive Touch Fingerprint Scanner Generic Clone (alternative: DFROBOT)

• 160x128 LCD TFT SPI 1.8" Module with SD Socket Generic Clone (alternative: Heyaodz111208)

Wiring

Pin Mapping
Due Pin	Function	MLX90614	AMG8833	VL53L0X	MAX30102	FP Scan	TFT	SD Socket
3	Interrupt					IRQ
4	Interrupt				INT
5	Interrupt		INT
6	Digital I/O			GPIO1
7	Digital I/O			XSHUT
8	Digital I/O							SD_CS
9	Digital I/O						RST
10	Digital I/O						CS
11	Digital I/O						AO
18	TX_1					RX
19	RX_1					TX
20	SDA	SDA	SDA	SDA	SDA
21	SCL	SCL	SCL	SCL	SCL
SPI	MISO							SD_MISO
SPI	MOSI						SDA	SD_MOSI
SPI	SCK						SCK	SD_SCK

Code

Libraries

#include <Wire.h>

#include <SPI.h>

#include <Adafruit_GFX.h>

#include <Adafruit_ST7735.h>

#include <Adafruit_VL53L0X.h>

#include <Adafruit_AMG88xx.h>

#include <MAX30105.h>

#include <SparkFunMLX90614.h>

#include <DFRobot_ID809.h>

#include <SD.h>

Library Modification

// In this Library : #include <SparkFunMLX90614.h>

//Change the following line in the bool IRTherm::I2CReadWord(byte reg, int16_t * dest) routine.

//

// I2C processing change needed for Arduino Due implementation

//

// Comment Out Line Below

// _i2cPort->requestFrom(_deviceAddress, (uint8_t) 3, (uint8_t) true);

// Add Line Below

     _i2cPort->requestFrom(_deviceAddress, (uint8_t) 3, (uint32_t)reg, (uint8_t)1, (uint8_t)true);

Defines - Variables - Routines

//low range of the sensor (this will be blue on the screen) #define MINTEMP 20

//high range of the sensor (this will be red on the screen) #define MAXTEMP 28

//the colors we will be using const uint16_t camColors[] = {0x480F,

                             0x400F, 0x400F, 0x400F, 0x4010, 0x3810, 0x3810, 0x3810, 0x3810, 0x3010, 0x3010,
                             0x3010, 0x2810, 0x2810, 0x2810, 0x2810, 0x2010, 0x2010, 0x2010, 0x1810, 0x1810,
                             0x1811, 0x1811, 0x1011, 0x1011, 0x1011, 0x0811, 0x0811, 0x0811, 0x0011, 0x0011,
                             0x0011, 0x0011, 0x0011, 0x0031, 0x0031, 0x0051, 0x0072, 0x0072, 0x0092, 0x00B2,
                             0x00B2, 0x00D2, 0x00F2, 0x00F2, 0x0112, 0x0132, 0x0152, 0x0152, 0x0172, 0x0192,
                             0x0192, 0x01B2, 0x01D2, 0x01F3, 0x01F3, 0x0213, 0x0233, 0x0253, 0x0253, 0x0273,
                             0x0293, 0x02B3, 0x02D3, 0x02D3, 0x02F3, 0x0313, 0x0333, 0x0333, 0x0353, 0x0373,
                             0x0394, 0x03B4, 0x03D4, 0x03D4, 0x03F4, 0x0414, 0x0434, 0x0454, 0x0474, 0x0474,
                             0x0494, 0x04B4, 0x04D4, 0x04F4, 0x0514, 0x0534, 0x0534, 0x0554, 0x0554, 0x0574,
                             0x0574, 0x0573, 0x0573, 0x0573, 0x0572, 0x0572, 0x0572, 0x0571, 0x0591, 0x0591,
                             0x0590, 0x0590, 0x058F, 0x058F, 0x058F, 0x058E, 0x05AE, 0x05AE, 0x05AD, 0x05AD,
                             0x05AD, 0x05AC, 0x05AC, 0x05AB, 0x05CB, 0x05CB, 0x05CA, 0x05CA, 0x05CA, 0x05C9,
                             0x05C9, 0x05C8, 0x05E8, 0x05E8, 0x05E7, 0x05E7, 0x05E6, 0x05E6, 0x05E6, 0x05E5,
                             0x05E5, 0x0604, 0x0604, 0x0604, 0x0603, 0x0603, 0x0602, 0x0602, 0x0601, 0x0621,
                             0x0621, 0x0620, 0x0620, 0x0620, 0x0620, 0x0E20, 0x0E20, 0x0E40, 0x1640, 0x1640,
                             0x1E40, 0x1E40, 0x2640, 0x2640, 0x2E40, 0x2E60, 0x3660, 0x3660, 0x3E60, 0x3E60,
                             0x3E60, 0x4660, 0x4660, 0x4E60, 0x4E80, 0x5680, 0x5680, 0x5E80, 0x5E80, 0x6680,
                             0x6680, 0x6E80, 0x6EA0, 0x76A0, 0x76A0, 0x7EA0, 0x7EA0, 0x86A0, 0x86A0, 0x8EA0,
                             0x8EC0, 0x96C0, 0x96C0, 0x9EC0, 0x9EC0, 0xA6C0, 0xAEC0, 0xAEC0, 0xB6E0, 0xB6E0,
                             0xBEE0, 0xBEE0, 0xC6E0, 0xC6E0, 0xCEE0, 0xCEE0, 0xD6E0, 0xD700, 0xDF00, 0xDEE0,
                             0xDEC0, 0xDEA0, 0xDE80, 0xDE80, 0xE660, 0xE640, 0xE620, 0xE600, 0xE5E0, 0xE5C0,
                             0xE5A0, 0xE580, 0xE560, 0xE540, 0xE520, 0xE500, 0xE4E0, 0xE4C0, 0xE4A0, 0xE480,
                             0xE460, 0xEC40, 0xEC20, 0xEC00, 0xEBE0, 0xEBC0, 0xEBA0, 0xEB80, 0xEB60, 0xEB40,
                             0xEB20, 0xEB00, 0xEAE0, 0xEAC0, 0xEAA0, 0xEA80, 0xEA60, 0xEA40, 0xF220, 0xF200,
                             0xF1E0, 0xF1C0, 0xF1A0, 0xF180, 0xF160, 0xF140, 0xF100, 0xF0E0, 0xF0C0, 0xF0A0,
                             0xF080, 0xF060, 0xF040, 0xF020, 0xF800,
                            };

Adafruit_AMG88xx amg; unsigned long delayTime;

1. define AMG_COLS 8
2. define AMG_ROWS 8

float pixels[AMG_COLS * AMG_ROWS];

1. define INTERPOLATED_COLS 24
2. define INTERPOLATED_ROWS 24

float get_point(float *p, uint8_t rows, uint8_t cols, int8_t x, int8_t y); void set_point(float *p, uint8_t rows, uint8_t cols, int8_t x, int8_t y, float f); void get_adjacents_1d(float *src, float *dest, uint8_t rows, uint8_t cols, int8_t x, int8_t y); void get_adjacents_2d(float *src, float *dest, uint8_t rows, uint8_t cols, int8_t x, int8_t y); float cubicInterpolate(float p[], float x); float bicubicInterpolate(float p[], float x, float y); void interpolate_image(float *src, uint8_t src_rows, uint8_t src_cols,

                      float *dest, uint8_t dest_rows, uint8_t dest_cols);

void setup_AMG() {

 if (!amg.begin()) 
   {
     Serial.println("Could not find a valid AMG88xx sensor, check wiring!");
     while (1) { delay(1); }
   }

 //  Serial.println("-- Thermal Camera Test --");

}

void drawpixels(int x_offset, int y_offset, float *p, uint8_t rows, uint8_t cols, uint8_t boxWidth, uint8_t boxHeight) {

 int colorTemp;

// int x_offset = 4, y_offset = 0;

 for (int y = 0; y < rows; y++) 
 {
   for (int x = 0; x < cols; x++) 
   {
     float val = get_point(p, rows, cols, x, y);
     if (val >= MAXTEMP) colorTemp = MAXTEMP;
     else if (val <= MINTEMP) colorTemp = MINTEMP;
     else colorTemp = val;

     uint8_t colorIndex = map(colorTemp, MINTEMP, MAXTEMP, 0, 255);
     colorIndex = constrain(colorIndex, 0, 255);
     //draw the pixels!
     uint16_t color;
     color = val * 2;
     tft.fillRect(x_offset + (boxWidth * x), y_offset + (((rows-1)  - y) * boxHeight), boxWidth, boxHeight, camColors[colorIndex]);
   }
 }

}

int AMG_x_offset = 44; int AMG_y_offset = 0; int AMG_x_width = 74; int AMG_y_height = 74;

void AMG_Frame() {

 int AMG_box_top = AMG_y_offset;
 int AMG_box_left = AMG_x_offset;
 int AMG_box_bottom = AMG_box_top + AMG_y_height;
 int AMG_box_right = AMG_box_left + AMG_x_width;
 int AMG_box_width = AMG_x_width;
 int AMG_box_height = AMG_y_height;
 int AMG_frame_left = AMG_box_left + 1;
 int AMG_frame_top = AMG_box_top + 1;
 
 int box_size = 3;
 
 //read all the pixels
 amg.readPixels(pixels);
 float dest_2d[INTERPOLATED_ROWS * INTERPOLATED_COLS];
 int32_t t = millis();
 interpolate_image(pixels, AMG_ROWS, AMG_COLS, dest_2d, INTERPOLATED_ROWS, INTERPOLATED_COLS);

// Serial.print("Interpolation took "); Serial.print(millis() - t); Serial.println(" ms"); // uint16_t boxsize = min(tft.width() / INTERPOLATED_COLS, tft.height() / INTERPOLATED_COLS);

 tft.drawRect(AMG_box_left, AMG_box_top, AMG_box_width, AMG_box_height, ST7735_ORANGE);
 drawpixels(AMG_frame_left,AMG_frame_top,dest_2d, INTERPOLATED_ROWS, INTERPOLATED_COLS, box_size, box_size);  

}

void setup() {

 Wire.begin();
 Serial.begin(115200);

 Serial.println("SETUP - Begin");
 Serial.println("TFT");
 setup_TFT();
 Serial.println("CT");
 setup_CT();
 Serial.println("AMG");
 setup_AMG();
 Serial.println("VL");
 setup_VL();  
 Serial.println("HB");
 setup_HB();
 Serial.println("FP");
 setup_FP();
 Serial.println("SETUP - End");

}

void loop() {

 VL_Frame();
 AMG_Frame();
 CT_Frame();
 FP_Frame();
 HB_Frame();

}