Pseudo-Medical Monitor Hand-Held External Unit Design

UNIT
Device	Interactions	Port Description	Connection Diagram
Hand-Held Grip and Reflex Sensor	Steady Hold Grip Strength User Response Switch Vibration Generation	Pin Mapping Line # Device Signal Function 1 3.3V Power 2 GND Power 3 MPU6050/ATTiny85 Token I2C-SDA 4 MPU6050/ATTiny85 Token I2C-SCL 5 MPU6050-INT GPIO 6 Vibrating Motor I/O GPIO 7 Momentary Push Button GPIO 8 Grip Sensor Analog

This Amazing, Affordable, Earth Changing Device, for which no endorsement is to be inferred, is designed as a shot in the dark.

Hand-Held Grip and Reflex External Unit

Components and Materials

Items
Device	Use
Momentary Switch	Provide user response
Vibrating Motor	Provide sensory input to user
ATTiny85 Token	Identify External Unit to Main Unit
Single RJ45 Port	Connection to Main Unit
Foam Sheet	Outer Cover
Copper Tape	Conductive surface for Velostat sheet readings
Polycarbonate Tube (Size/Length/Diameter/Thickness varied according to use)	Grip Structure

Sensors

Sensors
Device	Description	Interface
MPU6050 6 DOF Micro Electro-Mechanical Systems (MEMS)	3-axis Accelerometer and 3-axis Gyroscope	I2C Address 0x68 or 0x69
Velostat Pressure-Sensitive Conductive Sheet	Resistance measurement between points	Analog Voltage Output

Wiring

Sub-Assembly	Elements	Schematic
Hand Held Unit PCB	MPU6050 Vibrating Motor Circuit Velostat Wrap Copper Rings Momentary Switch ATTiny85 Token

Assembly

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Build

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Pseudo-Medical Monitor