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.

Operation

This device offers several functions to the user. The device is intended to be held by the user for self-analysis.

Modes

Passive Mode

This device provides several passive functions when not placed in specific function modes. The passive mode consists of a thermal image with a actual 8x8 resolution that is interpolated out to 24x24. A distance of device from user is recorded by a time of flight laser range finder. The distance is displayed with a color bar graph. A bar color of RED indicates the distance to user is beyond 50cm. A bar of GREEN indicates a distance of 50cm or less. The final BLUE bar indicates a distance of less than 25cm and invokes the EXG Sensor mode. An Object and Ambient temperature is displayed.

Fingerprint Mode

Placement of a finger on the fingerprint scanner activated this mode. Onscreen instructions direct the user to place finger an scanner. This suspends the Passive Mode. The onscreen instructions tell the user to keep finger on scanner until a fingerprint image is captured and displayed on the screen. When the scanner ring is pulsing RED, a fingerprint is not displayed. A GREEN ring indicates a fingerprint image has been captured and is being displayed. Upon removal of finger from scanner, the device returns to Passive Mode.

Pulse Mode

Placement of a finger on the pulse sensor activates this mode. This suspends the Passive Mode. The sensor reads the pulse and provides a beat indicator as well as an estimate pulse rate. Future upgrades will display the O2 Saturation level (stray diagnosis number under pulse rate). Upon removal of finger from sensor, the device returns to Passive Mode.

EXG Mode

When the device distance is met, or a finger is placed on the distance sensor, the EXG Mode is engaged. This suspends the Passive Mode. The entire screen is cleared and converted to display ~152 readings with automatic scaling to screen. If the distance reading remains in this modes range, additional readings are made and displayed until distance criteria changes. Upon mode change, the entire screen is redrawn and the fingerprint information is reset to not recorded. (Finger is over distance sensor, readings are from the BioAmp EXG Pill in a black box)

Design (Updated 11/16/2021)

• 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.
• ECG,EMG,EEG,EOG Function depending on where you put the electrodes!

Parts List

• Arduino Due Generic Clone (alternative: ITEADUINO DUE)

• Arduino Mega Prototype Shield Generic Clone (alternative: KEYESTUDIO) (EXG connector added after photo)

• Audio Shield with VS1103

• Ports Hosted on Shield

• Dual Encoder Control with LED indicators

• BioAmp EXG Pill Excellent Hackaday.io Project by Deepak Khatri

• 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)

• IR Pulse Sensor with incorrect Labelling

• Grip and Reflex Sensor
  • Cylinder 5x5x15 cm. 0.25 cm. thickness
  • Copper Tape Hoop
  • Velostat Wrap Sheet
  • MPU6050 Sensor
  • Vibration Motor
  • Vibration Motor Control Circuit
  • Momentary Push Button Switch
  • Foam Wrap 0.5 cm.
  • RJ45 Socket Breakout Board

• Test Unit for Add-Ons
  • Arduino Proto-Shield w/ pins A4 and A5 clipped to simulate Wire1 Operation
  • RJ45 Connection Box
  • Wire1 Pull-Up Resistors

• NeoPixel I2C Controller
  • ATTINY85
  • Single NeoPixel
  • Local Reset Button

• EKG-Respiration Unit
  • NeoPixel I2C Controller
  • EXG BIO AMP Unit
  • Breathing Motion Sensor with Amplifier
  • RJ45 Socket Breakout Board

Assemblies

External EKG-Respiration Unit

External Hand Held Unit

Wiring

Main Shield

Pin Mapping
Due Pin	Function	MLX90614	AMG8833	VL53L0X	MAX30102	FP Scan	TFT	SD Socket	EXG
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
A0									Signal
SPI	MISO							SD_MISO
SPI	MOSI						SDA	SD_MOSI
SPI	SCK						SCK	SD_SCK

Encoders Panel

Pin Mapping
Device	SIGNAL	DUE Pin	Function
Controls	Vin	3.3V	Power
Controls	SDA	20	SDA-I2C
Controls	SCL	21	SCL-I2C
Controls	INT	2	GPIO
Controls	GND	GND	Power

MIDI Shield

Pin Mapping
Device	SIGNAL	DUE Pin	Function
VS1103	Vin	3.3V	Power
VS1103	GND	GND	Power
VS1103	TX	17	RX-Serial2
VS1103	RX	16	TX-Serial2
VS1103	GPIO0	30	GPIO
VS1103	GPIO1	32	GPIO
VS1103	RST	28	GPIO
VS1103	DREQ	24	GPIO
VS1103	BSYNC	26	GPIO
VS1103	CS	22	GPIO
VS1103	SO	SPI-HDR	MISO
VS1103	SI	SPI-HDR	MOSI
VS1103	SCLK	SPI-HDR	SCK

Ports Shield

Pin Mapping
Port #	Line #	DUE Pin	Function
0	1	3.3V	Power
0	2	GND	Power
0	3	70	I2C-SDA
0	4	71	I2C-SCL
0	5	53	GPIO0
0	6	51	GPIO1
0	7	49	GPIO2
0	8	65/A11	Analog0

Pin Mapping
Port #	Line #	DUE Pin	Function
1	1	3.3V	Power
1	2	GND	Power
1	3	70	I2C-SDA
1	4	71	I2C-SCL
1	5	27	GPIO0
1	6	29	GPIO1
1	7	31	GPIO2
1	8	60/A6	Analog0

Pin Mapping
Port #	Line #	DUE Pin	Function
2	1	3.3V	Power
2	2	GND	Power
2	3	70	I2C-SDA
2	4	71	I2C-SCL
2	5	64/A10	Analog0
2	6	63/A9	Analog1
2	7	62/A8	Analog2
2	8	61/A7	Analog3

Pin Mapping
Port #	Line #	DUE Pin	Function
3	1	3.3V	Power
3	2	GND	Power
3	3	70	I2C-SDA
3	4	71	I2C-SCL
3	5	59/A5	Analog0
3	6	58/A4	Analog1
3	7	57/A3	Analog2
3	8	56/A2	Analog3

External Hand-Held Unit

Pin Mapping
Line #	Device Signal	Function
1	3.3V	Power
2	GND	Power
3	MPU6050	I2C-SDA
4	MPU6050	I2C-SCL
5	MPU6050-INT	GPIO
6	Vibrating Motor I/O	GPIO
7	Momentary Push Button	GPIO
8	Grip Sensor	Analog

External EKG-Respiration Unit

Pin Mapping
Line #	Device Signal	Function
1	3.3V	Power
2	GND	Power
3	NeoPixel Controller	I2C-SDA
4	NeoPixel Controller	I2C-SCL
5	Breath Signal	Analog
6	Breath Signal Adjust	Analog
7	N/C	Analog
8	Heart Beat Signal	Analog

Schematics

Control Panel Circuit

EXG BIO AMP Circuit used as EKG

Note: Module is powered by 3.3V, not 5V

Respiratory Sensor

Vibrating Motor Circuit

Note: Module is powered by 3.3V not 5V

Code (Updated 11/16/2021)

Special Libraries

#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 "bmpHeader.h"

#include <SD.h>

#include <Adafruit_MPU6050.h>

#include <Adafruit_Sensor.h>

#include <pu2clr_pcf8574.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);

Code Listing

Pseudo-Medical Monitor Code

Video

YouTube Demo Video

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