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Tuesday, March 28, 2023

on video How To Make 3.7V Battery Charger Using Diodes..3.7V Battery Charger With Battery Level Indicator


 I have received the glove liner from Amazon (though later than expected). This next Monday I will be focusing all of my effort on constructing / applying all of the flex sensors.

Using fake data, I created several ML python scripts in preparation for the flex sensors. Current plan is to have the ESP32 connect to laptop via Bluetooth in order to run the ML solution for the showcase. Unless the model is computationally cheap enough to run on the ESP32 (either main core or secondary).


Working with the servos currently, I have noticed the torque could be improved. This is something that I somewhat anticipated. Not going to address it in this iteration of the project, though the solution is to add a custom gearbox (perhaps worm gear?) to the output of the servo.


As for my power system, I have a USB battery pack  that I tested with the servos. It seems to handle the current draw with all three. It has two USB ports so it is possible to power both the controller and the servos using it, however I may purchase a secondary supply for the controller in order to isolate the voltage sag from servos.


For the poster I have started to lay out the information and determine which pictures I want to include. I need to find someone to assist me either as a hand model or to take the pictures.

 how to implement an IR transmitter using the Patricle Photon. I was able to make the circuit for doing so, but had some trouble with the code, as there was multiple errors in the IR codes.
Additionally, we sewed on one of the DIY flex sensors onto a glove for the in-class demonstration and were able to successfully turn on a smart light with the flex of a finger (with a 20 second delay). However, we had to look into a DIY sensor that used fabric instead of electrical tape, to integrate it into the glove well, and we were able to get  to work successfully
on the physical aspect of the glove and assembling the bits together. We initially sewed on a flex sensor we had made out of velostat and tape. However when we sewed it on, it did not integrate well with the fabric of the glove. The sensor also often dislocated reducing the consistency of our output.  After talking to the professor, we created a similar sensor using fabric as the insulator instead of tape. Although the readings were changing in much smaller granularity, it sewed on really well and a much better aesthetic choice.

I also tried making the android app, however the rest api error continued and the app did not work. We might fallback on IFTTT to the extent possible.


 I have received the glove liner from Amazon (though later than expected). This next Monday I will be focusing all of my effort on constructing / applying all of the flex sensors.

Using fake data, I created several ML python scripts in preparation for the flex sensors. Current plan is to have the ESP32 connect to laptop via Bluetooth in order to run the ML solution for the showcase. Unless the model is computationally cheap enough to run on the ESP32 (either main core or secondary).


Working with the servos currently, I have noticed the torque could be improved. This is something that I somewhat anticipated. Not going to address it in this iteration of the project, though the solution is to add a custom gearbox (perhaps worm gear?) to the output of the servo.


As for my power system, I have a USB battery pack  that I tested with the servos. It seems to handle the current draw with all three. It has two USB ports so it is possible to power both the controller and the servos using it, however I may purchase a secondary supply for the controller in order to isolate the voltage sag from servos.


For the poster I have started to lay out the information and determine which pictures I want to include. I need to find someone to assist me either as a hand model or to take the pictures.

 how to implement an IR transmitter using the Patricle Photon. I was able to make the circuit for doing so, but had some trouble with the code, as there was multiple errors in the IR codes.
Additionally, we sewed on one of the DIY flex sensors onto a glove for the in-class demonstration and were able to successfully turn on a smart light with the flex of a finger (with a 20 second delay). However, we had to look into a DIY sensor that used fabric instead of electrical tape, to integrate it into the glove well, and we were able to get  to work successfully
on the physical aspect of the glove and assembling the bits together. We initially sewed on a flex sensor we had made out of velostat and tape. However when we sewed it on, it did not integrate well with the fabric of the glove. The sensor also often dislocated reducing the consistency of our output.  After talking to the professor, we created a similar sensor using fabric as the insulator instead of tape. Although the readings were changing in much smaller granularity, it sewed on really well and a much better aesthetic choice.

I also tried making the android app, however the rest api error continued and the app did not work. We might fallback on IFTTT to the extent possible.

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