[SOLVED] Crazyflie 2.0 flashes red, IMU: LPS25H Fail

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chromebookbob
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Posts: 12
Joined: Sat Dec 06, 2014 11:40 pm

[SOLVED] Crazyflie 2.0 flashes red, IMU: LPS25H Fail

Post by chromebookbob »

Code: Select all

SYS: ----------------------------
SYS: Crazyflie is up and running!
SYS: Build 0:1ab92e55c44b (2014.12.0) CLEAN
003B and I have 1024KB of flash!
IMU: MPU9250 I2C connection [OK].
IMU: AK8963 I2C connection [OK].
I2CDEV: Error callback nr: 1024
IMU: LPS25H I2C connection [FAIL].
EXPBRD: Found 0 memories.
EEPROM: I2C connection [OK].
AK8963: Self test [OK].
OW: Found 0.
30 78 42 43 0 50 0 0 0 0 0 0 0 0 0 7D 
Status 0
30 78 42 43 0 50 0 0 0 0 0 0 0 0 0 7D 
Status 0
I just turned on my crazyflie today, it self-tested and connected to my pc, but there is a red flashing light on it and it won't fly. Any help would be appreciated. I have tried tapping it as per the troubleshooting guide, I don't really understand what is going on.
Last edited by chromebookbob on Sun Feb 22, 2015 10:27 am, edited 1 time in total.
tobias
Bitcraze
Posts: 2339
Joined: Mon Jan 28, 2013 7:17 pm
Location: Sweden

Re: Crazyflie 2.0 flashes red, IMU: LPS25H Fail

Post by tobias »

Something happened with the pressure sensor chip, probably soldering that has gone bad. You can contact Seeedstudio support to get it fixed. I have also attached a firmware that disables the pressure sensor functionality so it will work again without it (altitude hold will not work).
Attachments
cf2 2014.12.0-17 - No pressure.dfu
Dfu file to be flashed with USB.
(74.21 KiB) Downloaded 447 times
cf2 2014.12.0-17 - No pressure.bin
Bin firmware to be flashed with Crazyradio
(73.91 KiB) Downloaded 524 times
chromebookbob
Beginner
Posts: 12
Joined: Sat Dec 06, 2014 11:40 pm

Re: Crazyflie 2.0 flashes red, IMU: LPS25H Fail

Post by chromebookbob »

Thanks so much, I have contacted seeedstudio.com, but the firmware is just what I need in the meantime. I can keep working without the pressure sensor. Thanks again
qubitter
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Posts: 28
Joined: Wed Mar 11, 2015 8:47 pm

Re: [SOLVED] Crazyflie 2.0 flashes red, IMU: LPS25H Fail

Post by qubitter »

I have the same issue. Will the new board cost me anything?
tobias
Bitcraze
Posts: 2339
Joined: Mon Jan 28, 2013 7:17 pm
Location: Sweden

Re: [SOLVED] Crazyflie 2.0 flashes red, IMU: LPS25H Fail

Post by tobias »

No it wont as it is a manufacturing error, I sent you a PM.
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