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projects:crazyflie:userguide:troubleshooting [2013-06-01 07:44] macke |
projects:crazyflie:userguide:troubleshooting [2014-10-10 21:34] chad [When I start the Crazyflie the red LED blinks 5 times and I can't fly it?] Sentence structure. |
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==== When I start the Crazyflie the red LED blinks 5 times and I can't fly it? ==== | ==== When I start the Crazyflie the red LED blinks 5 times and I can't fly it? ==== | ||
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- | During the start-up all the mounted sensors run a self test. If either | + | During the start-up all the mounted sensors run a self test. If any of these tests fail, the failure |
- | The picture shows the console tab with no errors but when you have an error it might say e.g //MPU6050: Self test acc Y [FAIL]. low: 0.300000, high: 0.949999, measured: 0.0.// This example means that the accelerometer Y axis didn't pass the self test and is probably defective. It is possible to get this error also if the Crazyflie is moved to much during the self test so try putting it on a sable surface before you power it on. | + | The picture shows the console tab with no errors but when you have an error it might say e.g //MPU6050: Self test acc Y [FAIL]. low: 0.300000, high: 0.949999, measured: 0.0.// This example means that the accelerometer Y axis didn't pass the self test and is probably defective. It is possible to get 5 blink error also if the Crazyflie is moved to much during the self test, so try putting it on a sable surface before you power it on. |
- | Another thing to try, if you get an accelerometer self test error with measured value 0.0, is to tap/bang it on the sides. E.g. use a table edge to tap/bangit | + | Another thing to try, if you get an accelerometer self test error with measured value 0.0, is to tap/bang it on the sides. E.g. use a table edge to tap/bang it against, and tap/bang the rounded corners of the PCB (where the LEDs are). This could in theory release the accelerometer lock-up. |
If anything of the above didn't fix it you probably have a broken sensor and the sensor needs to be replaced. Contact [[https:// | If anything of the above didn't fix it you probably have a broken sensor and the sensor needs to be replaced. Contact [[https:// | ||
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- | When the PCB arm breaks it breaks it almost always break as in the picture. Since there is a bit of it left it can be used to fix it. | + | When the PCB arm breaks it almost always break as in the picture. Since there is a bit of it left it can be used to fix it. |
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When upgrading the firmware the bootloader cannot be overwritten or modified so you always have the option of going into bootloader mode and upgrading the firmware again. [[projects: | When upgrading the firmware the bootloader cannot be overwritten or modified so you always have the option of going into bootloader mode and upgrading the firmware again. [[projects: | ||
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+ | ==== I'm having problems entering the bootloader mode ==== | ||
+ | Try the following steps: | ||
+ | - Power off the Crazyflie | ||
+ | - Un-plug and insert the Crazyradio again | ||
+ | - Start the cfclient | ||
+ | - Go to the menu // | ||
+ | - Power on the Crazyflie (not using USB, only battery) within 1-5 seconds after initiating the bootloader | ||
+ | - Flash new firmware **without** the //Verify// option enabled | ||
+ | |||
+ |