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The architecture of our PCB
Some days ago, we discussed about the architecture of our PCB. I will be short, and just give you the overall design. This PCB will be used as well for the emitters and the card which will emit...
View ArticleWAMI: Where AM I
Description The aim of the project is to implement an indoor localisation system using ultrasounds. The localisation system shall be able to locate a given cell phone in a 3D space of approximatively...
View ArticleD-22
Choice and implementation of the localisation algorithm : Finding the solution of a localisation problem thanks to tdoa (time difference of arrival) of the beeps and knowing the position of each...
View ArticleD-21 : XBEE communication protocol
Here is a post concerning the XBEE communication protocol (hence the title) that we will use to synchronize the different slave tweeters. We named the different messages to be able to be able to...
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WAMI PCB soldered -> check !
Hello everyone, today I’m glad to introduce WAMI PCB, that has been soldered yesterday night. We’ve got 5 buddies that I would like to show you, (see the photo below) I’m not a pro at editing photos...
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That awkward moment when… your led blinks and you’re the happiest man of the...
Besides the fact that the title of the post is too long and that you should punish me for that, today I started developping on the WAMI project trying to do some basic tasks. you may tell me that the...
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A little success
That was a bip at 440Hz detected by an Android phone, using cross-correlation All the structure of the Android application is there, I’ll come to that in a future post. As soon as the localization...
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WAMI – some more success — H bridge responds correctly
Hi, Tell you what ? WAMI is fine. How’d you know that, would you tell me ? The H bridge has been tested right at the moment and the sound on our tweeters is emitted correctly. Here are some screen...
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Structure of the Android application
Just a little post to describe you the current architecture of our Android application As we are not 200% sure on the algorithms to use to detecting the time arrival differences, the localization and...
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The Android application localizes !
On the last day, we’ve rebuilt the Android application completely from scratch and it works ! This screenshot has been made in the foyer of Telecom. In red are the tweeters, in black our position. The...
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