FPV drone flips on takeoff

Help
21

I have just done a bit of research and it seems like the ESCs on the wizard can support Oneshot 125. So if the problem is still happening with this motor protocol selected then it is likely to be a different issue.

However, testing motors can be confusing. When I first tested the motors with the transmitter, the spun up initially as expected but then all started to change speeds on there own. even when my throttle was at zero. The reason I think it does this is because of the flight controller. When you increase the throttle (with no props on) the FC will expect to detect vertical acceleration (like it would if you had the props on). If it doesn’t, it thinks the motors haven’t spun up enough and starts to increase them until it does get a response but with no props on, it never will. So I think the only way to test the motors and be sure that they are working is with a hover test.

I was almost certain there was something wrong with my quad when it did this but later found that it flew fine. I would suggest that you make sure that your motor protocol is set to Oneshot 125 and try a hover test. Hope that this solves your problem.

1 Like
22

Yes thank you, i set it to the Oneshot 125 protocol and took it for a test hover and it all seemed to be working fine, i guess that must have been the problem and yes it appears that testing it on a desk without props doesn’t provide accurate results (did get a little excited during the test and crash resulting in a broken prop but that’s part of the fun) thanks for your help!!!

23

Glad that worked for you!

Hope you have got some spare props haha. Good luck flying!

24

nice work…

just do us a favor…
Send in another dump. (back it up at the same time)

25

CLI

# dump
# Betaflight / SPRACINGF3 (SRF3) 3.3.2 May  4 2018 / 10:02:58 (64a292f37) MSP API: 1.38
name -
resource BEEPER 1 C15
resource MOTOR 1 A06
resource MOTOR 2 A07
resource MOTOR 3 A11
resource MOTOR 4 A12
resource MOTOR 5 B08
resource MOTOR 6 B09
resource MOTOR 7 A02
resource MOTOR 8 A03
resource SERVO 1 NONE
resource SERVO 2 NONE
resource SERVO 3 NONE
resource SERVO 4 NONE
resource SERVO 5 NONE
resource SERVO 6 NONE
resource SERVO 7 NONE
resource SERVO 8 NONE
resource PPM 1 A00
resource PWM 1 A00
resource PWM 2 A01
resource PWM 3 B11
resource PWM 4 B10
resource PWM 5 B04
resource PWM 6 B05
resource PWM 7 B00
resource PWM 8 B01
resource SONAR_TRIGGER 1 B00
resource SONAR_ECHO 1 B01
resource LED_STRIP 1 A08
resource SERIAL_TX 1 A09
resource SERIAL_TX 2 A14
resource SERIAL_TX 3 B10
resource SERIAL_TX 4 NONE
resource SERIAL_TX 5 NONE
resource SERIAL_TX 6 NONE
resource SERIAL_TX 7 NONE
resource SERIAL_TX 8 NONE
resource SERIAL_TX 9 NONE
resource SERIAL_TX 10 NONE
resource SERIAL_TX 11 B05
resource SERIAL_TX 12 B01
resource SERIAL_RX 1 A10
resource SERIAL_RX 2 A15
resource SERIAL_RX 3 B11
resource SERIAL_RX 4 NONE
resource SERIAL_RX 5 NONE
resource SERIAL_RX 6 NONE
resource SERIAL_RX 7 NONE
resource SERIAL_RX 8 NONE
resource SERIAL_RX 9 NONE
resource SERIAL_RX 10 NONE
resource SERIAL_RX 11 B04
resource SERIAL_RX 12 B00
resource I2C_SCL 1 B06
resource I2C_SCL 2 NONE
resource I2C_SDA 1 B07
resource I2C_SDA 2 NONE
resource LED 1 B03
resource LED 2 NONE
resource LED 3 NONE
resource RX_BIND 1 NONE
resource RX_BIND_PLUG 1 NONE
resource SPI_SCK 1 NONE
resource SPI_SCK 2 B13
resource SPI_SCK 3 NONE
resource SPI_MISO 1 NONE
resource SPI_MISO 2 B14
resource SPI_MISO 3 NONE
resource SPI_MOSI 1 NONE
resource SPI_MOSI 2 B15
resource SPI_MOSI 3 NONE
resource ESCSERIAL 1 A00
resource CAMERA_CONTROL 1 NONE
resource ADC_BATT 1 A04
resource ADC_RSSI 1 B02
resource ADC_CURR 1 A05
resource ADC_EXT 1 NONE
resource BARO_CS 1 NONE
resource COMPASS_CS 1 NONE
resource PINIO 1 NONE
resource PINIO 2 NONE
resource PINIO 3 NONE
resource PINIO 4 NONE
mixer QUADX

mmix reset

servo 0 1000 2000 1500 100 -1
servo 1 1000 2000 1500 100 -1
servo 2 1000 2000 1500 100 -1
servo 3 1000 2000 1500 100 -1
servo 4 1000 2000 1500 100 -1
servo 5 1000 2000 1500 100 -1
servo 6 1000 2000 1500 100 -1
servo 7 1000 2000 1500 100 -1
smix reset


feature -RX_PPM
feature -INFLIGHT_ACC_CAL
feature -RX_SERIAL
feature -MOTOR_STOP
feature -SERVO_TILT
feature -SOFTSERIAL
feature -GPS
feature -RANGEFINDER
feature -TELEMETRY
feature -3D
feature -RX_PARALLEL_PWM
feature -RX_MSP
feature -RSSI_ADC
feature -LED_STRIP
feature -DISPLAY
feature -OSD
feature -CHANNEL_FORWARDING
feature -TRANSPONDER
feature -AIRMODE
feature -RX_SPI
feature -SOFTSPI
feature -ESC_SENSOR
feature -ANTI_GRAVITY
feature -DYNAMIC_FILTER
feature RX_PPM
feature TELEMETRY
feature RSSI_ADC
beeper GYRO_CALIBRATED
beeper RX_LOST
beeper RX_LOST_LANDING
beeper DISARMING
beeper ARMING
beeper ARMING_GPS_FIX
beeper BAT_CRIT_LOW
beeper BAT_LOW
beeper GPS_STATUS
beeper RX_SET
beeper ACC_CALIBRATION
beeper ACC_CALIBRATION_FAIL
beeper READY_BEEP
beeper MULTI_BEEPS
beeper DISARM_REPEAT
beeper ARMED
beeper SYSTEM_INIT
beeper ON_USB
beeper BLACKBOX_ERASE
beeper CRASH FLIP
beeper CAM_CONNECTION_OPEN
beeper CAM_CONNECTION_CLOSED
map AETR1234
serial 0 1 115200 57600 0 115200
serial 1 0 115200 57600 0 115200
serial 2 0 115200 57600 0 115200
led 0 0,0::C:0
led 1 0,0::C:0
led 2 0,0::C:0
led 3 0,0::C:0
led 4 0,0::C:0
led 5 0,0::C:0
led 6 0,0::C:0
led 7 0,0::C:0
led 8 0,0::C:0
led 9 0,0::C:0
led 10 0,0::C:0
led 11 0,0::C:0
led 12 0,0::C:0
led 13 0,0::C:0
led 14 0,0::C:0
led 15 0,0::C:0
led 16 0,0::C:0
led 17 0,0::C:0
led 18 0,0::C:0
led 19 0,0::C:0
led 20 0,0::C:0
led 21 0,0::C:0
led 22 0,0::C:0
led 23 0,0::C:0
led 24 0,0::C:0
led 25 0,0::C:0
led 26 0,0::C:0
led 27 0,0::C:0
led 28 0,0::C:0
led 29 0,0::C:0
led 30 0,0::C:0
led 31 0,0::C:0
color 0 0,0,0
color 1 0,255,255
color 2 0,0,255
color 3 30,0,255
color 4 60,0,255
color 5 90,0,255
color 6 120,0,255
color 7 150,0,255
color 8 180,0,255
color 9 210,0,255
color 10 240,0,255
color 11 270,0,255
color 12 300,0,255
color 13 330,0,255
color 14 0,0,0
color 15 0,0,0
mode_color 0 0 1
mode_color 0 1 11
mode_color 0 2 2
mode_color 0 3 13
mode_color 0 4 10
mode_color 0 5 3
mode_color 1 0 5
mode_color 1 1 11
mode_color 1 2 3
mode_color 1 3 13
mode_color 1 4 10
mode_color 1 5 3
mode_color 2 0 10
mode_color 2 1 11
mode_color 2 2 4
mode_color 2 3 13
mode_color 2 4 10
mode_color 2 5 3
mode_color 3 0 8
mode_color 3 1 11
mode_color 3 2 4
mode_color 3 3 13
mode_color 3 4 10
mode_color 3 5 3
mode_color 4 0 7
mode_color 4 1 11
mode_color 4 2 3
mode_color 4 3 13
mode_color 4 4 10
mode_color 4 5 3
mode_color 5 0 9
mode_color 5 1 11
mode_color 5 2 2
mode_color 5 3 13
mode_color 5 4 10
mode_color 5 5 3
mode_color 6 0 6
mode_color 6 1 10
mode_color 6 2 1
mode_color 6 3 0
mode_color 6 4 0
mode_color 6 5 2
mode_color 6 6 3
mode_color 6 7 6
mode_color 6 8 0
mode_color 6 9 0
mode_color 6 10 0
mode_color 7 0 3
aux 0 0 0 1700 2100 0
aux 1 1 1 1300 1700 0
aux 2 2 1 900 1300 0
aux 3 28 1 1700 2100 0
aux 4 0 0 900 900 0
aux 5 0 0 900 900 0
aux 6 0 0 900 900 0
aux 7 0 0 900 900 0
aux 8 0 0 900 900 0
aux 9 0 0 900 900 0
aux 10 0 0 900 900 0
aux 11 0 0 900 900 0
aux 12 0 0 900 900 0
aux 13 0 0 900 900 0
aux 14 0 0 900 900 0
aux 15 0 0 900 900 0
aux 16 0 0 900 900 0
aux 17 0 0 900 900 0
aux 18 0 0 900 900 0
aux 19 0 0 900 900 0
adjrange 0 0 0 900 900 0 0
adjrange 1 0 0 900 900 0 0
adjrange 2 0 0 900 900 0 0
adjrange 3 0 0 900 900 0 0
adjrange 4 0 0 900 900 0 0
adjrange 5 0 0 900 900 0 0
adjrange 6 0 0 900 900 0 0
adjrange 7 0 0 900 900 0 0
adjrange 8 0 0 900 900 0 0
adjrange 9 0 0 900 900 0 0
adjrange 10 0 0 900 900 0 0
adjrange 11 0 0 900 900 0 0
adjrange 12 0 0 900 900 0 0
adjrange 13 0 0 900 900 0 0
adjrange 14 0 0 900 900 0 0
rxrange 0 1000 2000
rxrange 1 1000 2000
rxrange 2 1000 2000
rxrange 3 1000 2000
vtx 0 0 0 0 900 900
vtx 1 0 0 0 900 900
vtx 2 0 0 0 900 900
vtx 3 0 0 0 900 900
vtx 4 0 0 0 900 900
vtx 5 0 0 0 900 900
vtx 6 0 0 0 900 900
vtx 7 0 0 0 900 900
vtx 8 0 0 0 900 900
vtx 9 0 0 0 900 900
rxfail 0 a
rxfail 1 a
rxfail 2 a
rxfail 3 a
rxfail 4 h
rxfail 5 h
rxfail 6 h
rxfail 7 h
rxfail 8 h
rxfail 9 h
rxfail 10 h
rxfail 11 h
rxfail 12 h
rxfail 13 h
rxfail 14 h
rxfail 15 h
rxfail 16 h
rxfail 17 h
set align_gyro = DEFAULT
set gyro_lpf = OFF
set gyro_sync_denom = 4
set gyro_lowpass_type = PT1
set gyro_lowpass_hz = 90
set gyro_notch1_hz = 400
set gyro_notch1_cutoff = 300
set gyro_notch2_hz = 200
set gyro_notch2_cutoff = 100
set gyro_stage2_lowpass_hz = 0
set moron_threshold = 48
set gyro_offset_yaw = 0
set gyro_overflow_detect = ALL
set align_acc = DEFAULT
set acc_hardware = AUTO
set acc_lpf_hz = 10
set acc_trim_pitch = 0
set acc_trim_roll = 0
set align_mag = DEFAULT
set mag_bustype = I2C
set mag_i2c_device = 1
set mag_i2c_address = 0
set mag_spi_device = 0
set mag_hardware = AUTO
set mag_declination = 0
set magzero_x = 0
set magzero_y = 0
set magzero_z = 0
set baro_bustype = I2C
set baro_spi_device = 0
set baro_i2c_device = 1
set baro_i2c_address = 0
set baro_hardware = AUTO
set baro_tab_size = 21
set baro_noise_lpf = 600
set baro_cf_vel = 985
set baro_cf_alt = 965
set mid_rc = 1500
set min_check = 1050
set max_check = 1900
set rssi_channel = 0
set rssi_scale = 41
set rssi_invert = OFF
set rc_interp = AUTO
set rc_interp_ch = RP
set rc_interp_int = 19
set fpv_mix_degrees = 0
set max_aux_channels = 14
set serialrx_provider = SPEK1024
set serialrx_inverted = OFF
set spektrum_sat_bind = 0
set spektrum_sat_bind_autoreset = ON
set airmode_start_throttle_percent = 32
set rx_min_usec = 885
set rx_max_usec = 2115
set serialrx_halfduplex = OFF
set input_filtering_mode = OFF
set blackbox_p_ratio = 32
set blackbox_device = SPIFLASH
set blackbox_record_acc = ON
set blackbox_mode = NORMAL
set min_throttle = 1070
set max_throttle = 2000
set min_command = 1000
set dshot_idle_value = 450
set dshot_burst = OFF
set use_unsynced_pwm = OFF
set motor_pwm_protocol = ONESHOT125
set motor_pwm_rate = 480
set motor_pwm_inversion = OFF
set thr_corr_value = 0
set thr_corr_angle = 800
set failsafe_delay = 4
set failsafe_off_delay = 10
set failsafe_throttle = 1000
set failsafe_kill_switch = OFF
set failsafe_throttle_low_delay = 100
set failsafe_procedure = DROP
set align_board_roll = 0
set align_board_pitch = 0
set align_board_yaw = 270
set gimbal_mode = NORMAL
set bat_capacity = 0
set vbat_max_cell_voltage = 43
set vbat_full_cell_voltage = 41
set vbat_min_cell_voltage = 33
set vbat_warning_cell_voltage = 35
set vbat_hysteresis = 1
set current_meter = ADC
set battery_meter = ADC
set vbat_detect_cell_voltage = 30
set use_vbat_alerts = ON
set use_cbat_alerts = OFF
set cbat_alert_percent = 10
set vbat_cutoff_percent = 100
set vbat_scale = 110
set vbat_divider = 10
set vbat_multiplier = 1
set ibata_scale = 400
set ibata_offset = 0
set ibatv_scale = 0
set ibatv_offset = 0
set beeper_inversion = ON
set beeper_od = OFF
set beeper_frequency = 0
set beeper_dshot_beacon_tone = 0
set yaw_motors_reversed = OFF
set 3d_deadband_low = 1406
set 3d_deadband_high = 1514
set 3d_neutral = 1460
set 3d_deadband_throttle = 50
set 3d_switched_mode = OFF
set servo_center_pulse = 1500
set servo_pwm_rate = 50
set servo_lowpass_hz = 0
set tri_unarmed_servo = ON
set channel_forwarding_start = 4
set reboot_character = 82
set serial_update_rate_hz = 100
set accxy_deadband = 40
set accz_deadband = 40
set acc_unarmedcal = ON
set imu_dcm_kp = 2500
set imu_dcm_ki = 0
set small_angle = 25
set auto_disarm_delay = 5
set gyro_cal_on_first_arm = OFF
set deadband = 0
set yaw_deadband = 0
set yaw_control_reversed = OFF
set pid_process_denom = 4
set runaway_takeoff_prevention = ON
set runaway_takeoff_deactivate_delay = 500
set runaway_takeoff_deactivate_throttle_percent = 25
set tlm_switch = OFF
set tlm_inverted = OFF
set tlm_halfduplex = ON
set frsky_vfas_precision = 0
set hott_alarm_int = 5
set pid_in_tlm = OFF
set report_cell_voltage = OFF
set ledstrip_visual_beeper = OFF
set osd_units = METRIC
set osd_warnings = -1
set osd_rssi_alarm = 20
set osd_cap_alarm = 2200
set osd_alt_alarm = 100
set osd_ah_max_pit = 20
set osd_ah_max_rol = 40
set osd_tim1 = 2560
set osd_tim2 = 2561
set osd_vbat_pos = 234
set osd_rssi_pos = 234
set osd_tim_1_pos = 234
set osd_tim_2_pos = 234
set osd_remaining_time_estimate_pos = 234
set osd_flymode_pos = 234
set osd_throttle_pos = 234
set osd_vtx_channel_pos = 234
set osd_crosshairs_pos = 234
set osd_ah_sbar_pos = 234
set osd_ah_pos = 234
set osd_current_pos = 234
set osd_mah_drawn_pos = 234
set osd_craft_name_pos = 234
set osd_gps_speed_pos = 234
set osd_gps_lon_pos = 234
set osd_gps_lat_pos = 234
set osd_gps_sats_pos = 234
set osd_home_dir_pos = 234
set osd_home_dist_pos = 234
set osd_compass_bar_pos = 234
set osd_altitude_pos = 234
set osd_pid_roll_pos = 234
set osd_pid_pitch_pos = 234
set osd_pid_yaw_pos = 234
set osd_debug_pos = 234
set osd_power_pos = 234
set osd_pidrate_profile_pos = 234
set osd_warnings_pos = 2377
set osd_avg_cell_voltage_pos = 234
set osd_pit_ang_pos = 234
set osd_rol_ang_pos = 234
set osd_battery_usage_pos = 234
set osd_disarmed_pos = 234
set osd_nheading_pos = 234
set osd_nvario_pos = 234
set osd_esc_tmp_pos = 234
set osd_esc_rpm_pos = 234
set osd_rtc_date_time_pos = 234
set osd_adjustment_range_pos = 234
set osd_core_temp_pos = 234
set osd_stat_max_spd = ON
set osd_stat_max_dist = OFF
set osd_stat_min_batt = ON
set osd_stat_min_rssi = ON
set osd_stat_max_curr = ON
set osd_stat_used_mah = ON
set osd_stat_max_alt = OFF
set osd_stat_bbox = ON
set osd_stat_endbatt = OFF
set osd_stat_bb_no = ON
set osd_stat_rtc_date_time = OFF
set osd_stat_tim_1 = OFF
set osd_stat_tim_2 = ON
set task_statistics = ON
set debug_mode = NONE
set rate_6pos_switch = OFF
set pwr_on_arm_grace = 5
set vtx_band = 4
set vtx_channel = 1
set vtx_power = 1
set vtx_low_power_disarm = OFF
set vtx_freq = 5740
set vtx_pit_mode_freq = 0
set vtx_halfduplex = ON
set displayport_msp_col_adjust = 0
set displayport_msp_row_adjust = 0
set esc_sensor_halfduplex = OFF
set led_inversion = 0
set camera_control_mode = HARDWARE_PWM
set camera_control_ref_voltage = 330
set camera_control_key_delay = 180
set camera_control_internal_resistance = 470
set rangefinder_hardware = NONE
set pinio_config = 1,1,1,1
set pinio_box = 255,255,255,255
profile 0

set dterm_lowpass_type = BIQUAD
set dterm_lowpass = 100
set dterm_notch_hz = 260
set dterm_notch_cutoff = 160
set vbat_pid_gain = OFF
set pid_at_min_throttle = ON
set anti_gravity_threshold = 350
set anti_gravity_gain = 1000
set setpoint_relax_ratio = 100
set dterm_setpoint_weight = 0
set acc_limit_yaw = 100
set acc_limit = 0
set crash_dthreshold = 50
set crash_gthreshold = 400
set crash_setpoint_threshold = 350
set crash_time = 500
set crash_delay = 0
set crash_recovery_angle = 10
set crash_recovery_rate = 100
set crash_limit_yaw = 200
set crash_recovery = OFF
set iterm_windup = 50
set iterm_limit = 150
set pidsum_limit = 500
set pidsum_limit_yaw = 400
set yaw_lowpass = 0
set p_pitch = 58
set i_pitch = 50
set d_pitch = 35
set p_roll = 40
set i_roll = 40
set d_roll = 30
set p_yaw = 70
set i_yaw = 45
set d_yaw = 20
set p_level = 50
set i_level = 50
set d_level = 75
set level_limit = 55
set horizon_tilt_effect = 75
set horizon_tilt_expert_mode = OFF
rateprofile 0

set thr_mid = 50
set thr_expo = 0
set rates_type = BETAFLIGHT
set roll_rc_rate = 100
set pitch_rc_rate = 100
set yaw_rc_rate = 100
set roll_expo = 0
set pitch_expo = 0
set yaw_expo = 0
set roll_srate = 70
set pitch_srate = 70
set yaw_srate = 70
set tpa_rate = 10
set tpa_breakpoint = 1650

#
26

That’s exactly what I was thinking. I have the rabbit 239 . The same thing happened to me. Accept I needed D shot 600