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RoadTests & Reviews

194 posts
This project is about building an interesting medical application project around Honeywell pressure sensors and a Cypress PSoC6 BLE Kit. I am partnered with glennvanderveer on this project. He will be doing most of the heavy lifting now that he has recieved a PSoC6 BLE Kit from jomoenginer . Thanks jomoenginer. Our project aims to use a Honeywell pressure sensor to measure shock waves that could damage ears. The project will also experiment with different types of ear protection to see how eff ...
When I first read about the Omron HVC-P2 roadtest I was excited about the possibility of implementing a security monitoring application with a camera/image processor that had human image recognition built in.  Based on the specs I thought I could monitor an area 20 feet deep by 10 feet wide (about the size of either the outside or inside entry area to my house).  I discussed the applicable parameters in my "Application Feasibilty" blog post.  As I've been testing the unit, I've co ...
Road-Test Blog 3 from MyIoT: Infineon Shield2Go Boards for IoT - Review   Here I used the Wemos mini D1 module and interfaced the 3D magnetic sensor TLV493D-A1B6 & DPS310 Pressure Sensor via I2C bus. I broke the mini board of 3D sensor head for portability. But the mini DPS310 head can only communicate via 3 wire SPI and not I2C. The Infineon Github repository has only I2C library for the DPS310 Pressure Sensor so I decided to keep the whole sensor board. The Wemos communicates via the ...
This is a next blog from the Road-Test Part2 MyIoT: Infineon Shield2Go Boards for IoT - Review   Installing DAVE4.0 LED BlinkyTest with Dave4.0 and XMC1100 BootKit Working with Arduino UNO and S2Go sensors Testing XMC1100 and S2Go sensors with Arduino IDE   Installing DAVE4.0  DAVE is a professional development platform for XMC microcontrollers from Infineon. It uses the the Eclipse IDE and is loaded with different software examples. I also tested the Infineon ...
It's time to switch the host for the HVC-P2 from the RPi3 to the RPi0W.   Integration Steps: 1) Load software OS and python code and libraries 2) Connect using USB OTG cable 3) Test that application software is operating correctly 4) Modify case and install the RPi0W.   Software installation: As usual, the easy stuff takes more time than expected.  I had a RPi0W with an 8GB SD card that I had used for a Pi camera project.  It had Raspbian Jessie installed and I wanted to u ...
The previous blogs are here MyIoT: Infineon Shield2Go Boards for IoT - Review Here I present some results from the tests of the Wemos D1 mini Wifi module. This is a common module which is used with many IOT products and very cheap to buy. It is a mini wifi board with 4MB flash based on ESP-8266.   The features of wemos are   11 digital input/output pins, all pins have interrupt/pwm/I2C/one-wire supported(except D0) 1 analog input(3.2V max input) a Micro USB connection Compatibl ...
This is a continuation of results of my performance testing.  I realize that I'm collecting a huge amount of data and it doesn't make sense to present the analysis of all of it, so I'm just going to summarize what I believe will be of interest and also data that is necessary to illustrate a conclusion.   Just a quick addendum to the previous data.  I thought it might be interesting to see if the variations in response time had any correlation to the confidence in the detection re ...
As I started to think about what my test matrix would look like, I quickly realized that I had far too many variables and that I needed to try to eliminate some of them.   The first parameter that I wanted to measure was detection acquisition time and to see how it varied based on function (body, face, etc), detected image size and stabilization. I decided to try body detection first.  I labeled the images 1-5 with 1 being the largest.  Then I did 100 sequential detections for e ...
In this blog post I'm going to detail the process that I'll be using to test the performance of the HVC-P2.  In following posts I'll document the test results.   As I discussed in my previous post, key parameters that I am trying to evaluate are the accuracy and repeatability versus the acquisition distance from the detected object.  It would have been nice to have the ability to load images into the HVC-P2 so that the image processor/algorithm could be evaluated independently fr ...
In evaluating the HVC-P2, I'm going to focus on the feasibility of using it in a security monitoring application.  As I began to think about what features that I might want in the application, I realized that I may be putting the cart before the horse, i.e. I'm using a paper spec to determine which features to implement without comprehending how those specs would translate into real life application performance (primarily because I don't know how those specs were tested).   As I gain ...
There is good news and bad news related to the availability of software for the HVC-P2.  The good news is that there is an evaluation GUI application for Windows that is ready to run.  And the product website has sample code available for C, Python, and Android.  The bad news is that most of the software is somewhat dated and the documentation is somewhat lacking.  The Evaluation Software is reasonably straightforward to use and provides a good basis for getting a sense of th ...
Here I did some experiments targeted to PYNQ Embedded Vision applications. It includes reading the USB camera in FPGA and projecting the image output via HDMI display on PC, testing the real time edge detection with the USB camera interfaced to the FPGA, and testing the face recognition software code on the HDMI display.   What is PYNQ? Display image via USB Camera to HDMI display Real time edge detection with the USB camera Testing the Face Recognition Software What is P ...
Here I tried to learn different methods to program the Digilent ARTY Z7 Dev Board. One simple way is to program .vhdl file in the Vivado and then create the sdk. Another way is to create the Block diagram in the vivado and then export the hardware to the SK.   VHDL code program on ARTY Z7 Vivado Block Diagram design to program ARTY Z7 FPGA LED, button and SW in VivadoSDK to program ARTY Z7 FPGA   VHDL code program on ARTY Z7  Here I have a simple .vhdl code and I p ...
The MIMXRT1020-EVK is the i.MX RT1020 Evaluation Kit, a 2-layer, low cost through-hole, USB-powered PCB, which recently I had the chance to test drive. On June 2018, NXP released an addition to their i.MX RT Series, the i.MX RT1020, which main differences with the other products of the series are, the removal of the support for graphics and the availability on LQFP package, all while maintaining the high performance with the Arm® Cortex-M7® core at up to 500 MHz.   Other impor ...
This is part 2 from the blog MyIoT: Infineon Shield2Go Boards for IoT - Review   Here I will explain in detail about the tests I performed with the Infineon Shield2Go boards and the sensors. After setting up the Arduino IDE for the XMC_BOOTKIT and XMC2GO micro-controller and installing the libraries needed to work with the S2Go sensors I made a simple setup to test the S2Go sensors.   Blinking LED Test on XMC1100 Boot Kit Blinking the LEDs on the XMC2Go board Testing the S2 ...

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