Anchors not recognized in clients

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Joined: Thu Feb 23, 2017 6:59 pm

Anchors not recognized in clients

Post by szx0112 » Sun Jan 28, 2018 5:41 am

I just update the LPS to the newest 2018 version and also flashed the CF to the latest firmware. In cfclient, I find I cannot identify all the anchors (6 in my case). I have re-flashed the LPS anchors several times but cannot have all anchor nodes work. I am wondering if I need to upgrade the tag node (attached on CF) also. I just attached it on CF when updating the firmware of CF in cfclient. Any comment is appreciate.
Screenshot from 2018-01-27 23-39-48.png

Posts: 1888
Joined: Tue Feb 06, 2007 12:36 pm

Re: Anchors not recognized in clients

Post by arnaud » Mon Jan 29, 2018 12:45 pm


You should just have to flash the Crazyflie with the latest firmware and flash and configure the anchor.

A couple of questions:
1) Was all the anchor working before the update?
2) Are you sure all the anchors are in TWR mode?
3) Are you sure all the anchor are configured with the right address/ID?
4) What is the state of the LEDs on the anchors? If in TWR mode, the "MODE" LED should be lit and all 4 communication LEDs should blink when the Crazyflie is ranging.

You can check the state of the anchors by opening there serial port using a serial terminal. When it is open, the anchors will send the current configuration.

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