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| How to open up Pleos body is described at the end of the spy cam tutorial. |
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| First of all, we need to prepare both XBee modules. So install all drivers and the software of the 'XBee Developement Starter Kit'. Then plug in the first XBee module into the USB-board and connect it with your PC. |
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| The XBee modules are preconfigured to communicate on 9600 baud whereas Pleos serial port has a baud rate of 115200. To change the settings of the XBee module open the X-CTU software. The settings should be as shown above. If you press 'Test / Query', the communication with the modem should work. |
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| Switch over to 'Terminal'. Now type '+++' and wait for aprox. 1 second. The Terminal should give an 'OK'-output. Now we are on the command-level of the XBee module. Type in 'ATBD7' and Enter. Once again 'OK' should show up. By this command we have changed the baud rate to 115200. Now type 'ATWR' and Enter to save the settings to the XBee module and then 'ATCN' and Enter to leave the command-level. Repeat all steps with the other XBee module. |
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| Im Pleos body is only very little space for additional installed equipment. But behind this coverage next to the main power cable a XBee module fits in. |
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| To reduce the height of the module, we carefully bend the pins of the XBee module 90 degrees. |
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| Because we don't have a fitting connector, we decided to solder a 4-wire ribbon cable directly to Pleos serial port. By the way: The orange and the whithe-orange wire don't belong to this. It was just an attempt to connect the spycam to Pleos own power supply. |
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| The configurations of the used pins of Pleos serial port and the XBee module. |
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| Now we have to shield the ribbon cable against the electromagnetical interfering fields inside of Pleos body. |
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| I use some aluminum foil ... |
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