{"id":122,"date":"2019-11-16T17:57:22","date_gmt":"2019-11-16T17:57:22","guid":{"rendered":"http:\/\/course.ece.cmu.edu\/~ece500\/projects\/f19-teama4\/?p=122"},"modified":"2019-11-16T22:57:46","modified_gmt":"2019-11-16T22:57:46","slug":"charlotte-status-update-11-16-2019","status":"publish","type":"post","link":"http:\/\/course.ece.cmu.edu\/~ece500\/projects\/f19-teama4\/2019\/11\/16\/charlotte-status-update-11-16-2019\/","title":{"rendered":"[Charlotte] Status Update 11.16.2019"},"content":{"rendered":"
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What did you personally accomplish this week on the project?<\/strong><\/div>\n<\/div>\n
Towards the beginning of this week we made sure that at Pi Cap and PIR sensor worked properly when both connected to the same RPi.\u00a0 We also updated the object that we are sending from our sub hubs to the UI, so it receives a list from each sub hub and that list is made up of objects that contain a zone, rpi ID, carrel ID, and the occupancy status.\u00a0 We worked together to be able to ssh into the RPi because it was proving to be tedious to either send code to the rpi over email or code in vi.\u00a0 We also ordered more parts and tested that they were working properly.\u00a0 Today I built a study carrel out of foam poster board.\u00a0 I also spent a lot of time getting the 3 RPi Zeros setup with Noobs and then installing Raspbian.\u00a0 I had some difficultly getting them to connect with the wifi even after I registered the devices.\u00a0 That said, we are mostly working with our 2 RPi 3B’s now because they reliably connect to the wifi.\u00a0 We also tested that multiple sub hubs could communicate to the UI, and that worked well.\u00a0 Finally, we tested that multiple carrells could work for each sub hub.\u00a0 In the image I have included below we have 4 PIR sensors and a Pi Cap connected to an RPi and they all behaved properly and worked together at the same time.<\/div>\n<\/div>\n
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Is your progress on schedule or behind? If you are behind, what actions will be taken to catch up to the project schedule?<\/strong><\/div>\n<\/div>\n
We are on schedule based on the schedule that we showed at the demo a week or so ago.<\/div>\n
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What deliverables do you hope to complete in the next week?<\/strong><\/div>\n
I plan to come up with a digital circuit schematic of how we are wiring everything together.\u00a0 This will help prevent us from making errors when we solder and will be nice in our final doc.\u00a0 I also plain to work on painting paper with the capacitive paint, and having a sub hub connected to our study carrel.<\/div>\n
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What are the most significant risks that could jeopardize the success of the project?\u00a0 How are these risks being managed? What contingency plans are ready?<\/strong><\/div>\n
We have not done a full test with our sensors actually in place on the study carrel yet.\u00a0 So, even though we have tested that the sensors work together and multiple sub hubs can communicate with the UI, we still haven’t proven to ourselves that the sensors will behave properly in the environment we plan to place them in.\u00a0 That said, I am confident, but it is probably the biggest risk in our project.<\/div>\n<\/div>\n
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I worked on whiteboarding what the wire connections within the sensor system should be.<\/figcaption><\/figure>\n
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A printout of RPI pins that we have marked up to try to determine which pins don’t need to be connected to the pi cap.<\/figcaption><\/figure>\n
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Image of what is being sent from the sub hub to the UI.<\/figcaption><\/figure>\n
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Image of sub hub connected to a pi cap and 4 PIR sensors.<\/figcaption><\/figure>\n<\/div>\n<\/div>\n
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What did you personally accomplish this week on the project? Towards the beginning of this week we made sure that at Pi Cap and PIR sensor worked properly when both connected to the same RPi.\u00a0 We also updated the object that we are sending from our sub hubs to the UI, so it receives a list from each sub hub and that list is made up of objects that contain a zone, rpi ID, carrel ID, and the occupancy status.\u00a0…<\/p>\n

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