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Thread: Developing the LKTR120 Micro FPV Quad / LKTR100 / LKTR090

  1. #391
    Navigator LKTRSMG's Avatar
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    latest PIDs
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    CLI dump
    Current settings:
    looptime = 1630
    emf_avoidance = 0
    mid_rc = 1500
    min_check = 1100
    max_check = 1900
    rssi_channel = 0
    rssi_scale = 30
    input_filtering_mode = 0
    min_throttle = 1200
    max_throttle = 1950
    min_command = 1000
    servo_center_pulse = 1500
    3d_deadband_low = 1406
    3d_deadband_high = 1514
    3d_neutral = 1460
    3d_deadband_throttle = 50
    motor_pwm_rate = 400
    servo_pwm_rate = 50
    retarded_arm = 0
    disarm_kill_switch = 1
    auto_disarm_delay = 5
    small_angle = 25
    flaps_speed = 0
    fixedwing_althold_dir = 1
    serial_port_1_scenario = 1
    serial_port_2_scenario = 3
    serial_port_3_scenario = 0
    serial_port_4_scenario = 0
    reboot_character = 82
    msp_baudrate = 115200
    cli_baudrate = 115200
    gps_baudrate = 115200
    gps_passthrough_baudrate = 115200
    gps_provider = 0
    gps_sbas_mode = 0
    gps_auto_config = 1
    gps_auto_baud = 0
    gps_pos_p = 15
    gps_pos_i = 0
    gps_pos_d = 0
    gps_posr_p = 34
    gps_posr_i = 14
    gps_posr_d = 53
    gps_nav_p = 25
    gps_nav_i = 33
    gps_nav_d = 83
    gps_wp_radius = 200
    nav_controls_heading = 1
    nav_speed_min = 100
    nav_speed_max = 300
    nav_slew_rate = 30
    serialrx_provider = 0
    spektrum_sat_bind = 0
    telemetry_provider = 0
    telemetry_switch = 0
    telemetry_inversion = 0
    frsky_default_lattitude = 0.000
    frsky_default_longitude = 0.000
    frsky_coordinates_format = 0
    frsky_unit = 0
    battery_capacity = 0
    vbat_scale = 110
    vbat_max_cell_voltage = 43
    vbat_min_cell_voltage = 33
    vbat_warning_cell_voltage = 35
    current_meter_scale = 400
    current_meter_offset = 0
    multiwii_current_meter_output = 0
    current_meter_type = 1
    align_gyro = 0
    align_acc = 0
    align_mag = 0
    align_board_roll = 180
    align_board_pitch = 0
    align_board_yaw = 180
    max_angle_inclination = 500
    gyro_lpf = 42
    moron_threshold = 32
    gyro_cmpf_factor = 600
    gyro_cmpfm_factor = 250
    alt_hold_deadband = 40
    alt_hold_fast_change = 1
    deadband = 10
    yaw_deadband = 0
    throttle_correction_value = 0
    throttle_correction_angle = 800
    yaw_control_direction = 1
    yaw_direction = 1
    tri_unarmed_servo = 1
    default_rate_profile = 0
    rc_rate = 100
    rc_expo = 90
    thr_mid = 20
    thr_expo = 65
    roll_pitch_rate = 30
    yaw_rate = 30
    tpa_rate = 0
    tpa_breakpoint = 1500
    failsafe_delay = 10
    failsafe_off_delay = 10
    failsafe_throttle = 900
    failsafe_min_usec = 985
    failsafe_max_usec = 2115
    gimbal_flags = 1
    acc_hardware = 0
    acc_lpf_factor = 4
    accxy_deadband = 40
    accz_deadband = 40
    accz_lpf_cutoff = 5.000
    acc_unarmedcal = 1
    acc_trim_pitch = 0
    acc_trim_roll = 0
    baro_tab_size = 21
    baro_noise_lpf = 0.600
    baro_cf_vel = 0.985
    baro_cf_alt = 0.965
    mag_hardware = 0
    mag_declination = 0
    pid_controller = 0
    p_pitch = 15
    i_pitch = 72
    d_pitch = 60
    p_roll = 15
    i_roll = 72
    d_roll = 50
    p_yaw = 30
    i_yaw = 100
    d_yaw = 120
    p_pitchf = 2.500
    i_pitchf = 0.600
    d_pitchf = 0.060
    p_rollf = 2.500
    i_rollf = 0.600
    d_rollf = 0.060
    p_yawf = 8.000
    i_yawf = 0.500
    d_yawf = 0.050
    level_horizon = 3.000
    level_angle = 5.000
    sensitivity_horizon = 75
    p_alt = 50
    i_alt = 0
    d_alt = 0
    p_level = 30
    i_level = 10
    d_level = 100
    p_vel = 120
    i_vel = 45
    d_vel = 1
    blackbox_rate_num = 1
    blackbox_rate_denom = 1
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  2. #392
    Navigator LKTRSMG's Avatar
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    Quote Originally Posted by northernflyer View Post
    Anybody taken a look at these new ESCs?
    http://www.rcgroups.com/forums/showthread.php?t=2453721
    without the wires, maybe weight is comparable?

    Also these motors:
    http://www.hobbyking.com/hobbyking/s...tor_2_3g_.html
    The ESCs look like good candidates, the 6A look almost identical to the MultiStar 6A

    The motor is not a good choice, I have tested this motor and found it not very good (not efficient, bad startup, mounting tabs are generally not good)

  3. #393
    FPV = Empty wallet Adroc3905's Avatar
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    Built one, love it, flies great. Problem is noise in the video. I skimmed the thread looking for a solution and found that an LC filter yeilded no improvement nor did a seperate batt for vid equipment. Thinking about sheilded wire as the next attempt. What have others found to help?

    Current setup:
    6500kv motors
    MS 6A esc - BLHeli 14
    Afromini 32
    Lemon RX sat
    RMRC pico tx/camera bundle (5.8ghz)

    Video becomes blurry and distorted when throttling up. Vtx pulls power from flight batt currently.

    Thanks
    Last edited by Adroc3905; 2nd August 2015 at 12:08 PM.

  4. #394
    Navigator LKTRSMG's Avatar
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    Regarding noise in video: I have tested shielding wires - it does not help here and only adds weight (in larger aircraft shielding is usually always a good idea)

    What helped me as a temporary fix was step-up to 9V or 12V and then step-down to 5V again... using pololu regulators.

    I now have a 5V step-down from fpvhobby http://www.fpvhobby.com/233-5v.html which so far seems to be the silver bullet of clean power step-downs - no motor noise in the video at all.
    Last edited by LKTRSMG; 2nd August 2015 at 01:59 PM.

  5. #395
    FPV = Empty wallet Adroc3905's Avatar
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    Thanks for the link, bought 2.

    In the meantime, I will try the Spektrum VA1100 to see if that makes a difference being a more compact/centralized system. I have parts inbound for the surveilzone camera conversion to upgrade stock.

  6. #396
    FPV = Empty wallet Adroc3905's Avatar
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  7. #397
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    Hi,

    I'm looking to get this frame but just got a couple of questions before I dive in. Has anyone tried other motors like the 1104 or the 1306? What are the motor hole spacings? Are they the same for the 120 and 90 frames?

    Thanks in advance,
    el

  8. #398
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    Elusiver, I think the answer is no, the kv of these motors is not even close the speced motors.

  9. #399
    Navigator LKTRSMG's Avatar
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    yes. 1306 is way too big.

    1104 would be ok in terms of size/weight but too low kv for 2S and 56mm props.

    now banggood also has the 120 kit
    http://www.banggood.com/LKTR120-Micr...-p-989609.html

  10. #400
    Navigator SuperRoach's Avatar
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    While on that, what do you think of the new escs? http://www.fpvaces.com/collections/c...ini-20-amp-esc

    Seems like they are more narrow. Or maybe they are Multistar 6A sized nown.

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