Changes between Version 52 and Version 53 of 2012/Projects/ICEMAN


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Timestamp:
Jul 24, 2012, 1:45:49 PM (5 years ago)
Author:
petlin
Comment:

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  • 2012/Projects/ICEMAN

    v52 v53  
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    5858 
    59 == Bluetooth vs. SPI == 
     59== Bluetooth Connection == 
    6060 
    6161[[Image(Breadboard2.gif)]] 
    6262[[Image(Arduino Output2.png)]] 
    6363 
    64  * In Progress  
     64 * Arduino boards cannot use I2C to connect between each other 
     65 * I2C is already being used by 9DoF chips, whose addresses cannot be changed, so  sharing the I2C line will not allow us to differentate between the sensors 
     66 * Having a Bluetooth module attached to each Arduino board ensures easy setup and duplication 
     67 * Bluetooth implementation will require interrupts because smartphones can only read from 1 Bluetooth module at a time 
     68 * SPI wire connection was explored but was too slow 
     69 * SPI tranfer speed was tested to be less than 1 kbps 
     70 * Bluetooth tranfer speed was tested to be around 31 kbps 
     71 * Arduinos are not built designed to be connected to each other (not designed to be the slave, only the master) 
     72 
     73Master can’t receive data simultaneously from two slaves 
     74 
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