Blog

Make Life Accessible - Clear Walk - Melting Snow - blog 19

dougw

This update to the Clear Walk project is to demonstrate its performance in the snow, but first I should show the android app I made to run this test. Note it is in the style of Star Trek LCARS because the Clear Walk system is also the "Main Deflector...
- 2 Jan 2017
Step Five: 5 Hardware - Intelligent Elbow-motion Assistance Acuator

fyaocn

5.1 Function DescriptionMy projectl is Intelligent Elbow Motion-Assistance Actuator. This device is comprised of two parts. On part is intelligent arm gesture sensing and pattern matching implemented by FRDM-KV31. The other part is bi-direction elbow...
- 5 Jul 2016
Step Four: 4.2 Programming and Software Design

fyaocn

4.2 The revised Program Flow4.2.1 My previous plan is running on FreeRTOS, which is fit for time-critical tasks and more concise in programming.Of course, application of interruption can do same job but if I have enough resource, I still would like t...
- 5 Jul 2016
Step Four: 4.1 Software_Description of Demo Project

fyaocn

4.1 Description of Demo Project4.1.1 NXP has provided a demo project for PMSM control. With a counter increment, the speed of motor change from 1000rpm, 2000rmp to 4000rpm, then to -1000rpm, -2000rpm, -4000rpm.The Freemaster embedded in this pr...
- 5 Jul 2016
Make Life Accessible - ELapShelf - Completed Project - Blog 13

rsc

Here it is, I put the electrical components in a box and bolted it to the arm, added a power switch and a reset switch to the box. players.brightcove.net/.../index.html
- 4 Jul 2016
Make Life Accessible - Clear Walk - Moving Mirrors - blog 18

dougw

I have to squeeze in one more update before I have to drive to Boston. The video below shows the fully functional Clear Walk system, with mirrors installed, capable of redirecting sunlight anywhere it is needed under remote control. It could be...
- 2 Jul 2016
Make Life Accessible - Clear Walk - Operational - blog 17

dougw

The Clear Walk system is finally fully operational under battery power. I have packaged the electronics in a small case which can be mounted on the frame. You can see a demo of the mechanics in operation in the following video.players.brightcove.net/...
- 1 Jul 2016
EyePrints - Post 17 - Final demo

amgalbu

Previous postsPost 1 - Introduction Post 2 - Installing OpenCV - Prerequisites Post 3 - Installing OpenCV Post 4 - Installing Pygaze Post 5 - Installing eye tracker Post 6 - SPI communication Post 7 - SPI communication in Python EyePrints - Post 8 - Getting...
- 30 Jun 2016
Make Life Accessible - Clear Walk - Bluetooth Motor - blog 16

dougw

It has taken months to get the Clear Walk mechanics and motors built up and functional, but only one evening to get the motor driver electronics working under Bluetooth control. Finding the H-bridge motor controller card amongst my old projects was q...
- 30 Jun 2016
Step Three: 3.3 Use of Capacitive touch sensors TI-FDC2114

fyaocn

1、The schedule is tight when time is ticking. I have selected FDC2114 by TI as direction control switch. One FDC2114 can monitor 4 channels for hand or arm approximate detection.The FDC2x1x family targets proximity sensing and liquid level sensing ap...
- 29 Jun 2016
Make Life Accessible - ELapShelf - Touch Lamp - Blog 12

rsc

To complete the touch lamp for the shelf I made a small box from balsa to match the shelf.The power for the lamp is a small flat 2300mah USB phone charger LiPo battery pack.The schematic for the circuit is shown below:
- 28 Jun 2016
Smart Storage - Blog 6 - things are (still) moving

grahamwebberjhb

I have made some progress and the end is in sight though I am not sure if I will finish in time, but we shall see. I have hacked and chopped and glued an old gearbox together, I found that the output shaft ran at nice speed with the first gear s...
- 28 Jun 2016
Step Three: 3.2 Programming environment based on KDS3.2.0+SDK1.3.0

fyaocn

1. As I have mentioned in last blog. The KMS1.0.0.0 seems do not work well. With different mixed type installation for drivers, IDE and SDK. Finally, my development environment has come to good result and work OK now. PMSM-demo has passed the debug a...
- 28 Jun 2016
Make Life Accessible - Clear Walk - Motorized Azimuth - blog 15

dougw

This update demonstrates motorized azimuth rotation. Finally there is a fully mechanically working system. Only the mirrors need to be mounted, plus some weatherproof covers.players.brightcove.net/.../index.htmlHere is a closeup of the azimuth motor....
- 28 Jun 2016
Make Life Accessible - ELapShelf - Blog 11

rsc

After a week of modifying the original gear train I decided to start over with a fresh set of arm struts with thicker oak trim.This added some needed stiffness and let me embed the shaft bearings deeper into the wood. The system is still a bit ...
- 27 Jun 2016
Make Life Accessible - Clear Walk - Motorized Elevation - blog 14

dougw

Another intense week - including 2 all-nighters trying to get the drive mechanisms designed, build and assembled. The image below has eighteen 3D printed parts, and there are more not shown.Progress in this update:I have mounted the solar panel which...
- 26 Jun 2016
Step Three: 3.1 Updated Plan to Solve the Coming Problems

fyaocn

As I have mentioned in last blog. There have been new challenges to me. With thorough I have got new solution and new parts to make it work.1. Solution to heavier motorI have to add a new worm reducer which can change the rotary direction in 90 degre...
- 24 Jun 2016
Make Life Accessible - ELapShelf - Blog10

rsc

I needed to attach the shelf to my workbench next to the computer so I could update the software easily.I removed the clamp from the monitor arm parts and bolted it to the ELapShelf, here's a photo:After modifying the software to simply move the ...
- 21 Jun 2016
EyePrints - Post 16 - The unhappy end

amgalbu

Posted by amgalbu Jun 17, 2016 Previous postsPost 1 - Introduction Post 2 - Installing OpenCV - Prerequisites Post 3 - Installing OpenCV Post 4 - Installing Pygaze Post 5 - Installing eye tracker Post 6 - SPI communication Post 7 - SPI communication i...
- 21 Jun 2016
Make Life Accessible - Clear Walk - Drive Pulley - blog 13

dougw

It has been a very busy week at work, plus working on 3 major projects at home, plus playing in a softball tournament - so 5 softball games and 2 hockey games, each taking several hours. I did manage to get in about 12 hours on the Clear Walk project...
- 20 Jun 2016
EyePrints - Post 15 - The plotter

amgalbu

Previous postsPost 1 - Introduction Post 2 - Installing OpenCV - Prerequisites Post 3 - Installing OpenCV Post 4 - Installing Pygaze Post 5 - Installing eye tracker Post 6 - SPI communication Post 7 - SPI communication in Python EyePrints - Post 8 - Getting...
- 17 Jun 2016
Make Life Accessible - ELapShelf - Touch Lamp Accessory - Blog 9

rsc

To make the ELapShelf even more useful, I've decided to add some accessories.The first will be a touch activated reading lamp.The lamp will be powered from 5VDC and be controlled using a NXP PCF8883 Capacitive touch proximity switch IC that was inclu...
- 16 Jun 2016
Design Challenge Project Summary #21: The Intelligent Elbow Motion-Assistance Actuator

CharlesGantt

Welcome to installment number 21 of the Design Challenge Project Summary series here at Element14. For those of you who are new to my content, in this series I will pick a single Design Challenge project from the current challenge, and write a short ...
- 14 Jun 2016
EyePrints - Post 14 - The drawing board

amgalbu

Previous postsPost 1 - Introduction Post 2 - Installing OpenCV - Prerequisites Post 3 - Installing OpenCV Post 4 - Installing Pygaze Post 5 - Installing eye tracker Post 6 - SPI communication Post 7 - SPI communication in Python EyePrints - Post 8 - Getting...
- 13 Jun 2016
Make Life Accessible - ELapShelf - Getting it all together - Blog 8

rsc

The gears on the shelf are not working very well. I need to add bearings to the inside shafts to lower the drag and torque on the motor.Lining up gears with just shafts in holes in the wood is a bit tricky.The current solution looks like this:F...
- 13 Jun 2016