Replies to This Discussion

Permalink Reply by Ian forbes on March 11, 2012 at 2:23pm

I can't help, but I am having issues with my 900 mhz xbees, My xstream adaptor on the drone side is doing nothing now but solid leds, it worked great for a few days and seems to have died.  I am powering directly off the bec on the esc.  I have been posting all weekend, with no response.  My multi meter is dead, so I can't go as in depth, but I think it is the xsteam bee having an issue.  What manufacture date is on your xstream drone side?

 

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Permalink Reply by Tops on March 11, 2012 at 2:50pm

Hi,

06/26/10...

The CTS modification was made by Buildyourowndrone, I think that this mod is not necessary for the 900MHz module !?... That mod is only a workaround for the 2.4GHZ module not a real/tested solution...

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Permalink Reply by Tops on March 18, 2012 at 1:03pm

Nobody has this 2.4GHz kit ?

Can some on check the voltage between the GND and the 3.3V pin ?

Thanks

Tops

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Permalink Reply by Paul Feely on March 18, 2012 at 2:25pm

Tops, I don't use the XtreamBee board so can't check but have you contacted Build Your Own Drones - Martin there is alway helpful and I'm sure he'll know what it should be,

Paul 

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Permalink Reply by Tops on March 19, 2012 at 3:22am

Paul, I contacted Martin about this problem. He checked only the functionality of a new kit ! My kit was working (hot)... But burned after I connect a 5.2V source.

I ask him to measure the voltage between GND and 3.3V but no reply !

Tops

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Permalink Reply by Helmut H. on March 19, 2012 at 4:31am

Hallo,spreche leider kein Englisch.

Habs gerade gemessen, 3,78 V

Mein Xbee ist auch von Martin

Grüße, Helmut

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Permalink Reply by Tops on March 19, 2012 at 6:01am

Danke Helmut,

Es ist nicht sehr gut! Den Xbee Module ist max. 3.3V !?

Is not good ! The Xbee module can't handle more than 3.3V !

Ok, is a general problem ? The workaround (connection between the CTS and the 5V) can burn your XBee module ?

Can someone else check the voltage ?

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Permalink Reply by Umer on April 17, 2012 at 11:13pm

3.28 Volts

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Permalink Reply by Tops on April 18, 2012 at 2:14am

Thanks Umer, with a 2.4Ghz XBee Pro S1 module connected?

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Permalink Reply by Umer on April 18, 2012 at 10:30am

Yes with the 2.4 GHz XBee-PRO RF Module RPSMA S1 connected. My 2.4 GHz XBee-PRO RF Module Whip Antenna S1 is unserviceable so with it the voltage was around 0.3 V. See

http://diydrones.com/forum/topics/xbee-2-4-ghz-problem?xg_source=ac...

The repercussions of the failed Xbee were huge. My APM1 got fried. Now ordering the 3DR RadioTelemetry Kit-433Mhz. Lets see how it performs.

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Permalink Reply by Paul Gregory on April 21, 2012 at 6:44am

I have a 2.4GHz kit from buildyourowndrones in the UK which I have just got working today.  With my initial set up, I measure 4.69V across the GND to + 5V pin (output from the AMP 2 board) and 3.67V across the GND to 3.3Vpin.  The 5V input pin is solder bridged to the CTS line. 

I am planning to add a separate UBEC to power the APM2.  If the voltage on this is closer to 5V, then the 3.3V would also rise and I could face the same problems.  Is there a fix for this?

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Permalink Reply by Tops on April 22, 2012 at 9:03am

Martin from buildyourowndrone send me a replacement kit (thanks to him). I will check the voltage across GND and 3.3V pin... You can try to remove the connection between the CTS en 5V and connect the CTS to 3.3V...

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