Spring 2016 A-TechTop Seizure Watch Subgroup Solution for Decreasing Size

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By Marena William (Manufacturing Engineer)

Introduction

After the group was debriefed on the Critical Design Review (CDR), we realized that our housing dimensions (maximum dimensions) need to be changed. Throughout the course of the semester our goal was to have a fully functional seizure watch however after the PCB layout was done this goal seemed unachievable. This post discusses how we approached this problem.
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Spring 2016 A-TeChToP 3D Printed Case

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By Mimy Ho (Manufacturing Engineer)

Introduction

We received the PCB back from the manufacturer in 2 weeks, soldering the PCB was done by the Manufacturing Division a week later. And we finally have the completed PCB, the next step is to design the 3D printed case for housing the PCB and battery.

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Spring 2016 A-TeChToP Seizure Watch SAMB11 Bluetooth Connection

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By Robin Yancey (Systems Engineer)

Introduction

In order to meet the communication requirements for the ATeChToP device, such as requirement 11 to use BLE v4.1 protocol, the flash memory had to be programmed to meet the services and characteristic properties of the HM-10 module that Arxterra was scanning for. The following PowerPoint presentation introduces the layers of the protocol and then focuses on the top control layers the GATT and GAP that must be used when programming the flash memory.

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Spring 2016 A-TeChToP Seizure Watch Sensor Testing

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By Rose Leidenfrost (Electronics and Control Engineer)

Overview

This blog post provides an outline of experiments used to test the functionality of the sensors used for the wrist worn device. Results conclude the feasibility of the sensor data to be used for seizure detection.

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Spring 2016 A-TeChToP CDR Debrief

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By Cody Dunn (Project Manager)

Overview

This blog post provides insight into the CDR debrief for team A-TeChToP (the CDR Presentations were posted on an earlier blog post). The group did not perform at the expectation level of the customer and must improve before the end of the semester.

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Spring 2016 A-TeChToP Seizure Watch PCB Layout

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By Marena William (Manufacturing Engineer)

Overview

The 3D printed housing of the seizure watch will contain the PCB board which consists of the EDA sensor, accelometer, clock and the ATSAMB11. The electrodes’ wires will be connected to the EDA connector. Eagle CAD software was used to generate the PCB schematic and layout.

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Spring 2016 A-TeChToP Central Sensor Suite PCB Layout

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By Mimy Ho (Manufacturing Engineer)

Overview

The chest harness prototype of the central sensor suite will have the 3D printed case which contains a printed circuit board and a 9V battery. The PCB includes the Arduino Pro Mini, accelerometer, temperature sensors, ECG circuitry, pulse oximeter circuitry. The PCB supports and electrically connects all the sensors to the Arduino Pro Mini. The schematic and layout were generated by Eagle CAD software.

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Spring 2016 A-TeChToP Critical Design Review

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Posted By Cody Dunn (Project Manager)

This blog post contains the Critical Design Review presentations for both the Central Sensor Suite and Seizure Watch subgroups.

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Spring 2016 A-TeChToP: Arxterra Interface

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By: Omar Rojas (Systems Engineer)

After successfully creating an ECG circuit, the next part of our demonstration was to show that the output from the ECG circuit can be displayed on the Arxterra control panel found on the Arxterra website. The Arduino code for the ECG circuit was successfully implemented in the Arxterra firmware. We also implemented some code for a temperature sensor since the Arxterra Control Panel has a temperature widget within its structure.

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