29 Jul

FORAY - Test different motor + propellers combination with feather board esp32

Zhaoliang Zheng

I'm testing different motor + propellers combinations since we change our control board to feather board esp32. And I will use feather board as the development toolkit in the paper, so it's necessary to test these combinations because the thrust and weight are the input parameters to our system. ...

29 Jul

Tank-drive and Steering with origami robots (cars from rocolib)

Jillian Naldrien Pantig

For SURP 2021’s Week 5, I created a car in roco and equipped with a steering system. Last week, I made one that has a tank-drive system. Tank-drive system: Controlled using a Webpage -- Forward, Backward, Left, and Right buttons Steering system: Controlled using Sudarshan Seshadri's Dash (Rea...

29 Jul

FORAY - New feather board design and structure design

Zhaoliang Zheng

The feather board stack is a little bit heavy (22.3 g) so I tried the soldering way to assemble different motor board and esp32 feather board, which is only 14.55 g as shown in the following figure: The soldering stack mode is also lighter, which is 22.67g now as shown in the following figure, a...

28 Jul

FORAY - Completion of ML-based Detection of the Ball

Aaron John Sabu

We had learned from the non-ML-based ball detection algorithm that a color-and-contour-based algorithm cannot always detect the ball with enough accuracy. As a result, I have been developing an ML-based platform for training a model with multiple images of the ball and identifying a bounding box aro...

28 Jul

successful primitive blimp automation

Shahrul Kamil bin Hassan (Kamil)

Last week, the engineering effort was focused on setting up the hardware and building the blimp and any other required electronic components. Initially, we couldn't set it up using the balloon that we bought from Amazon, so we had to reuse the blimp that was used in the previous tournament. Due to t...

27 Jul

Dashboard Video Display

Sudarshan Seshadri

Over the past week, I have been working on getting the dashboard to display video. As shown in this image, the dashboard can now do so. To do this, one can pass in JPEG binary data or base64 encoded JPEG images, which it will then display. I do this by having the OpenMV cam send this info to the...

27 Jul

Dashboard Input Recording

Sudarshan Seshadri

I have been working on allowing the user to review their robots runs within the dashboard. There is now a Download txt file button at the top of the screen, which allows one to download a text file containing a JSON object that represents every input the dashboard received. However, this currentl...

27 Jul

Implementation of rudder steering

Grace Kwak

I have built the first prototype of a boat with rudder steering. This video shows the rudder steering in action. We ran the boat four times and obtained these results: When the rudder is straight, the boat goes (relatively) straight. When the rudder is tilted to the left, the boat veers to...

27 Jul

Latency Differences Between Wifi and 433 MHz Packet Radios in my Diverse Mesh Network

Bhavik Joshi

Last week, the two biggest things that we accomplished were making one node in the mesh network into an MQTT bridge, which would connect to an MQTT broker to be able to use the dash with the mesh network, as well as set up the RFM69HCW 433 MHz packet radios into a unicast mesh network. So, using t...

22 Jul

FORAY - Kalman Filtering of Barometer Data

Aaron John Sabu

Last week, I worked on filtering three independent data streams from barometers using a simple Kalman filter. The output is given below: The black lines represent the ground truth, the red dots represent each data point, the orange curve represents the output of a running average filter with 1...

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