Bitcraze Forums

I can't use a z-ranger deck i bought on one of my crazyflies because the VM does not recognize the option to switch to height-hold mode. It greys out height-hold and only lets me choose between position hold and altitude hold. I have three other crazyflies that all work fine with the same firmware, dongle, etc. I have tried switching out batteries and motors and everthing. I only have one z-ranger deck so I know it works on the other three crazyflies.

First thing I would check is that you have an up to date firmware as the functionality is only present in the FW 2017.04 and newer.

I have tried flashing both the 2017.04 and 2017.05 versions, neither of which worked.

Now in addition to not recognizing the z-ranger deck, it also doesn't receive commands from the gamepad at all EXCEPT for the 'altitude assist' command, which sets the throttle to 50% and can't be adjusted. It also doesn't recognize battery life or pitch/roll/yaw in the displays in the VM, so I don't know if the reason for this behavior is the battery dying.

Could you copy-paste the console output after connecting the crazylfie (you can get it in the client in the console tab). It shoud show if the deck has been detected and initialized.

The client is checking for which deck is installed to activate the height hold mode. If all is working correctly the height hold mode should be possible to choose.

Here is the output:

INFO:cflib.crazyflie:Callback->Connection initialized[radio://0/80/250K]
INFO:cflib.crazyflie:We are connected[radio://0/80/250K], request connection setup
INFO:cflib.crazyflie:Resending for pattern (93, 5)
INFO:cflib.crazyflie:Resending for pattern (93, 5)
INFO:cflib.crazyflie:Callback->Connected to [radio://0/80/250K]
INFO:cflib.crazyflie:Resending for pattern (93, 5)
INFO:cflib.crazyflie.toc:TOC for port [5] found in cache
INFO:cflib.crazyflie:Log TOC finished updating
INFO:cflib.crazyflie.mem:Requesting number of memories
INFO:cflib.crazyflie.mem:3 memories found
INFO:cflib.crazyflie.mem:Requesting first id
INFO:cflib.crazyflie.mem:Requesting information about memory 1
INFO:cflib.crazyflie.mem:Memory: id=1, type=LED driver, size=24
INFO:cflib.crazyflie.mem:Requesting information about memory 2
INFO:cflib.crazyflie.mem:Memory: id=2, type=Loco Positioning, size=5632
INFO:cflib.crazyflie.mem:Done getting all the memories, start reading the OWs
INFO:cflib.crazyflie:Memories finished updating
INFO:cflib.crazyflie.toc:TOC for port [2] found in cache
INFO:cflib.crazyflie:Param TOC finished updating
INFO:cflib.crazyflie:Callback->Connection setup finished [radio://0/80/250K]
INFO:cfclient.utils.logconfigreader:Parsing [stabilizer.json]
INFO:cflib.crazyflie.mem:Writing new chunk of 24bytes at 0x0
INFO:cflib.crazyflie.mem:Updating content of memory 0
INFO:cflib.crazyflie.mem:Requesting new chunk of 16bytes at 0x0
INFO:cfclient.ui.tabs.LEDTab:Memory: id=1, type=LED driver, size=24
INFO:cflib.crazyflie.mem:WRITE: Mem=1, addr=0x0, status=0x0
INFO:cflib.crazyflie.mem:This write request is done
INFO:cflib.crazyflie.mem:Write to LED driver done
INFO:cfclient.ui.main:LED write done callback
INFO:cflib.crazyflie.mem:READ: Mem=0, addr=0x0, status=0x0, data=(48, 120, 66, 67, 1, 80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 231)
INFO:cflib.crazyflie.mem:READING: We are still interested in request for mem 0
INFO:cflib.crazyflie.mem:Got new data: bytearray(b'0xBC\x01P\x00\x00\x00\x00\x00\x00\x00\x00\x00\xe7')
INFO:cflib.crazyflie.mem:Requesting new chunk of 5bytes at 0x10
INFO:cflib.crazyflie.log:Have successfully started logging for id=23
INFO:cflib.crazyflie.mem:READ: Mem=0, addr=0x10, status=0x0, data=(231, 231, 231, 231, 1)
INFO:cflib.crazyflie.mem:READING: We are still interested in request for mem 0
INFO:cflib.crazyflie.mem:{'radio_address': 996028180455, 'version': 1, 'pitch_trim': 0.0, 'radio_channel': 80, 'radio_speed': 0, 'roll_trim': 0.0}
INFO:cflib.crazyflie.log:Have successfully started logging for id=25
INFO:cflib.crazyflie.log:Have successfully started logging for id=26
INFO:cfclient.ui.tabs.FlightTab:[imu_sensors.HMC5883L]: 1
INFO:cfclient.ui.tabs.FlightTab:[imu_sensors.MS5611]: 1
INFO:cflib.crazyflie.log:Have successfully started logging for id=27
INFO:cflib.crazyflie.log:Have successfully started logging for id=28
INFO:cfclient.ui.tabs.FlightTab:Changed effect to 0
INFO:cflib.crtp.radiodriver:Dongle reported ACK status == None


the Dongle reported ACK status == None messages went on until I disconnected so I cropped them out except for the first one.

I meant the console of the crazyflie. In the client you can click to "view/tabs/console" to see the Crazyflie console.

For reference when connecting the z-ranger deck I get:

My bad, here you go

Then my best guess is that there is a connection problem to the 1-wire memory in the deck. Can you try to check if there is anything strange with e.g. the connector in the pin marked OW in yellow in the pinout chart. Could be the the soldering of that pin or inside the connector. If it is inside, it is possible to bend them out, gently with a small needle.

....hmm. It seems to have fixed itself over the weekend when I wasn't working on it. Thank you for your advice, and i'll be sure to remember it if this problem ever crops back up.