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This tutorial reveals you methods to troubleshoot and repair a quadcopter that doesn’t arm. I may also clarify the frequent issues that stop a mini quad from arming with Betaflight.
If you’re utterly new to Betaflight, try my tutorials on methods to setup it up for the primary time.
Listed here are the primary belongings you wish to examine if you end up having bother arming your quad:
- Radio receiver is sure and dealing appropriately in Betaflight. Test within the receiver tab if the channels are responding to sticks motion within the right order and route (obtain the newest betaflight configurator)
- Test when you’ve got assigned a swap in your radio for ARM mode, and if it may be activated by that swap. The arm mode ought to flip yellow when activated, indicating that the swap is working
- As a security characteristic in Betaflight, the motors gained’t spin up even while you arm it if the flight controller is related to the configurator. Take away USB connection and check out once more
If all the things is nice however you continue to can’t arm the quad, then we should look a bit deeper.
You probably have Betaflight OSD, ensure you show “Warnings” in your display, and that “Arming Disabled” is chosen. It will let you understand what’s stopping arming.
In case you don’t have Betaflight OSD, it’s also possible to examine for the “Arming Disable Flag” in Betaflight. It will point out the problems which can be stopping you from arming.
There are a number of methods of checking for “Arming Disable Flag”:
- Betaflight Configurator
- CLI
- Buzzer Beeping
Betaflight Configurator
You probably have entry to a pc, you’ll be able to simply examine the Arming Disable Flag within the Setup Tab within the Betaflight configurator.
CLI
Alternatively, you’ll be able to examine within the CLI by getting into the command “standing”. The final line of the standing information is arming prevention flags listing. This characteristic was made out there after Betaflight 3.2.
Additional Studying: Tips on how to use CLI in Betaflight?
Buzzer Beeping
In case you don’t have entry to a pc, however you do have a buzzer in your quad, the beeping must also point out the explanations for the disabled arming. The beeping sample will be damaged down into:
- 5 quick beeps for consideration, which will be ignored
- a variety of lengthy beeps
- a variety of quick beeps with lengthy intervals
Every lengthy beep represents 5, whereas every quick beep represents 1. The ultimate flag quantity will be calculated as 5 x <the variety of lengthy beeps> + <the variety of quick beeps>.
For instance:
- 0 lengthy beep and a couple of quick beeps = 2
- 1 lengthy beep and three quick beeps = 8
- 2 lengthy beeps + 0 quick beeps = 10
Upon getting discovered the arming disable flag numbers or names, you’ll be able to look it up within the desk under to see what they really imply. The desk was taken from the Betaflight wiki web page for our readers’ comfort.
| Title | Description | Beep code | Required Actions | |||||
|---|---|---|---|---|---|---|---|---|
| 3.2 | 3.3 | 3.4/3.5 | 4.0 | 4.1 | 4.2+ | |||
NOGYRO |
A gyro was not detected | 1 | 1 | 1 | 1 | 1 | 1 | You might have a {hardware} failure, if a earlier firmware model works then it could be a firmware situation. |
FAILSAFE |
Failsafe is energetic | 2 | 2 | 2 | 2 | 2 | 2 | Rectify the failure situation and check out once more. |
RXLOSS(1) |
No legitimate receiver sign is detected | 3 | 3 | 3 | 3 | 3 | 3 | Your receiver is both defective or has no hyperlink to the transmitter. |
BADRX(1) |
Your receiver has simply recovered from receiver failsafe however the arm swap is on | 4 | 4 | 4 | 4 | 4 | 4 | Change the arm swap off. |
BOXFAILSAFE |
The ‘FAILSAFE’ swap was activated | 5 | 5 | 5 | 5 | 5 | 5 | See FAILSAFE |
RUNAWAY |
Runway Takeoff Prevention has been triggered | 6 | 6 | 6 | 6 | 6 | Disarm to clear this situation. | |
CRASH |
Crash Restoration has been triggered | 7 | 7 | Disarm to clear this situation. | ||||
THROTTLE |
Throttle channel is simply too excessive | 6 | 7 | 7 | 7 | 8 | 8 | Decrease throttle under min_check. |
ANGLE |
Craft will not be stage (sufficient) | 7 | 8 | 8 | 8 | 9 | 9 | Stage craft to inside small_angle levels (default 25). |
BOOTGRACE |
Arming too quickly after energy on | 8 | 9 | 9 | 10 | 10 | 10 | Wait till pwr_on_arm_grace seconds (default 5) have elapsed. |
NOPREARM |
Prearm swap will not be activated or prearm has not been toggled after disarm | 9 | 10 | 10 | 10 | 11 | 11 | Toggle the prearm swap. |
LOAD |
System load is simply too excessive for protected flight | 10 | 11 | 11 | 11 | 12 | 12 | Revisit configuration and disable options. |
CALIB |
Sensor calibration remains to be ongoing | 11 | 12 | 12 | 12 | 13 | 13 | Watch for sensor calibration to finish. |
CLI |
CLI is energetic | 12 | 13 | 13 | 13 | 14 | 14 | Exit the CLI. |
CMS |
CMS (config menu) is Energetic – over OSD or different show | 13 | 14 | 14 | 14 | 15 | 15 | Exit the CMS (or OSD menu). |
OSD |
OSD menu is energetic | 14 | 15 | 16 | Exit OSD menu. | |||
BST |
A Black Sheep Telemetry gadget (TBS Core Professional for instance) disarmed and is stopping arming | 15 | 16 | 16 | 15 | 16 | 16 | Check with the guide on your {hardware}. |
MSP |
MSP connection is energetic, most likely through Betaflight Configurator | 16 | 17 | 17 | 16 | 17 | 17 | Terminate the Betaflight Configurator connection (disconnect). |
PARALYZE |
Paralyze mode has been activated | 18 | 17 | 18 | 18 | Energy cycle/reset FC board. | ||
GPS |
GPS rescue mode is configured however required variety of satellites has not been mounted | 19 | 18 | 19 | 19 | Watch for GPS repair or disable GPS rescue mode. | ||
RESCUE_SW |
GPS Rescue swap is in an unsafe place | 19 | 20 | 20 | Flip off the GPS Rescue swap to arm. | |||
RPMFILTER(2) |
Motor RPM-based filtering will not be functioning | 21 | 21 | 21 | A number of ESC’s will not be supplying legitimate RPM telemetry. | |||
REBOOT_REQD |
Reboot required | 22 | 22 | Reboot the flight controller for settings modifications to take impact. | ||||
DSHOT_BBANG |
DSHOT Bitbang will not be working | 23 | 23 | (3) | ||||
ACC_CALIB |
Accelerometer calibration required | 24 | Calibrate the accelerometer or disable options that use it | |||||
ARMSWITCH |
Arm swap is in an unsafe place | 17 | 18 | 20 | 21 | 24 | 25 | Toggle the arm swap to arm. |
In case you don’t get any arming disabled flag in Betaflight, then the issue is perhaps one thing else. Attempt to undergo the next examine listing.
Accelerometer Associated
Possibly your mini quad will not be on a stage sufficient floor, or the ACC (accelerometer) will not be calibrated. Calibrate ACC on a stage floor first, if nonetheless no luck, attempt rising “small_angle levels” in CLI (default is 25).
Or just disable ACC in case you don’t fly Angle mode.
CPU Utilization Too Excessive?
When CPU load is simply too excessive, the flight controller will merely refuse to arm. Attempt to keep under 50% by reducing looptime, and disabling pointless options.
Throttle Associated
Test if the bottom worth in your throttle channel is simply too excessive, be certain the throttle stick is at its lowest place when making an attempt to arm. Ideally each channel together with throttle ought to have endpoints of 1000 and 2000. If they aren’t then you definitely would possibly wish to calibrate your radio endpoints first.
Betaflight doesn’t arm in case your minimal throttle is simply too excessive (greater than the setting “Min_Check”). It is a security characteristic in order that the quad doesn’t instantly spin up the motors and damage you when it’s armed. You will need to make sure that your throttle is decrease than min_check when it’s within the lowest stick place. Min_check is ready to 1050 by default, double examine if it’s not been modified by mistake.
Moron threshold
Some FC might need extra delicate gyro’s and the quad would refuse to initialize after energy up, and subsequently you’ll be able to’t arm it. By enhance Moron Threshold in CLI can scale back gyro sensitivity throughout initialization. Attempt setting it to 100 and even 120.
I hope that was useful! Let me know within the remark in case you had drawback with arming that was brought on by one thing else that wasn’t lined on this tutorial. If you’re nonetheless having issues arming your quad after following this information, please publish your query on our discussion board, I’m more than pleased to assist.
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