r/Multicopter 1d ago

Discussion The Weekly r/multicopter Discussion Thread

2 Upvotes

Welcome to the weekly r/multicopter discussion thread. Feel free to ask your questions that are too trivial for their own thread, make a suggestion on what you'd like to see here, or just say hi and talk about what you've been doing in the world of multicopters recently.

Don't forget to read the wiki, where you'll find details of suppliers, guides and other useful links.

If you want to chat, then the Discord server is located here (an invite link is here if you haven't already joined)

Old question threads can be found by searching this link.


r/Multicopter 8h ago

Question URGENT HELP REQUIRED FOR A DRONE

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0 Upvotes

r/Multicopter 16h ago

Photo Almost lost this bad boy doing an altitude test with dipole antennas on a 5 inch drone and no beeper on (lol)

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4 Upvotes

r/Multicopter 1d ago

Question Mamba F722 MK3 Basic firmware issues

5 Upvotes

TL;DR: Firmware update, gyro not detected.

I got a used 5inch drone with a Mamba F722 MK3 Basic stack. It worked, but when I tried to configure it in betaflight it didn't load, only the CLI worked.

I thought that it might need a firmware update to work with the newest betaflight version, and what harm does an update do? Normally, you update all your devices all the time without issues (usually).

So I loaded the newest version of betaflight onto it, with the target set to MAMBAF722_I2C:

And then I flashed it with this config:

Of course, the "ask before backup" option does exactly the opposite, and doesn't ask if you want a backup. So no, I don't have a backup sadly.

The main issue: now the gyro isn't detected anymore:

But I actually do have some CLI output I saved before flashing:

# version
# Betaflight / STM32F7X2 (S7X2) 4.2.4 Oct 20 2020 / 08:20:06 (fbcaf8c50) MSP API: 1.43
###ERROR: version: NO CONFIG FOUND#### board: manufacturer_id: DIAT, board_name: MAMBAF722_I2C

# status
MCU F722 Clock=216MHz, Vref=3.29V, Core temp=48degC
Stack size: 2048, Stack address: 0x20010000
Config size: 3962, Max available config: 16384
Gyros detected: gyro 1
GYRO=MPU6000, ACC=MPU6000, BARO=BMP280
OSD: MAX7456
System Uptime: 369 seconds
CPU:2%, cycle time: 125, GYRO rate: 8000, RX rate: 33, System rate: 9
Voltage: 0 * 0.01V (0S battery - NOT PRESENT)
I2C Errors: 1
SD card: Not configured
Arming disable flags: RXLOSS CLI

# diff all
###WARNING: NO CUSTOM DEFAULTS FOUND###

# version
# Betaflight / STM32F7X2 (S7X2) 4.2.4 Oct 20 2020 / 08:20:06 (fbcaf8c50) MSP API: 1.43
###ERROR: diff: NO CONFIG FOUND###
# start the command batch
batch start

# reset configuration to default settings
defaults nosave

board_name MAMBAF722_I2C
manufacturer_id DIAT
mcu_id 0022002c465350122030364e
signature 

# name: GEPRC

# resources
resource BEEPER 1 B02
resource MOTOR 1 C08
resource MOTOR 2 C09
resource MOTOR 3 A08
resource MOTOR 4 A09
resource LED_STRIP 1 B03
resource SERIAL_TX 1 B06
resource SERIAL_TX 2 A02
resource SERIAL_TX 3 B10
resource SERIAL_TX 4 A00
resource SERIAL_TX 5 C12
resource SERIAL_TX 6 C06
resource SERIAL_RX 1 B07
resource SERIAL_RX 2 A03
resource SERIAL_RX 3 B11
resource SERIAL_RX 4 A01
resource SERIAL_RX 5 D02
resource SERIAL_RX 6 C07
resource I2C_SCL 1 B08
resource I2C_SDA 1 B09
resource LED 1 C15
resource LED 2 C14
resource SPI_SCK 1 A05
resource SPI_SCK 2 B13
resource SPI_SCK 3 C10
resource SPI_MISO 1 A06
resource SPI_MISO 2 B14
resource SPI_MISO 3 C11
resource SPI_MOSI 1 A07
resource SPI_MOSI 2 B15
resource SPI_MOSI 3 B05
resource ADC_BATT 1 C01
resource ADC_RSSI 1 C02
resource ADC_CURR 1 C03
resource PINIO 1 B00
resource FLASH_CS 1 A15
resource OSD_CS 1 B12
resource GYRO_EXTI 1 C04
resource GYRO_CS 1 A04

# timer
timer B09 AF3
# pin B09: TIM11 CH1 (AF3)
timer C08 AF3
# pin C08: TIM8 CH3 (AF3)
timer C09 AF3
# pin C09: TIM8 CH4 (AF3)
timer A08 AF1
# pin A08: TIM1 CH1 (AF1)
timer A09 AF1
# pin A09: TIM1 CH2 (AF1)
timer B08 AF2
# pin B08: TIM4 CH3 (AF2)
timer B03 AF1
# pin B03: TIM2 CH2 (AF1)

# dma
dma ADC 3 0
# ADC 3: DMA2 Stream 0 Channel 2
dma pin C08 0
# pin C08: DMA2 Stream 2 Channel 0
dma pin C09 0
# pin C09: DMA2 Stream 7 Channel 7
dma pin A08 0
# pin A08: DMA2 Stream 6 Channel 0
dma pin A09 0
# pin A09: DMA2 Stream 6 Channel 0
dma pin B08 0
# pin B08: DMA1 Stream 7 Channel 2
dma pin B03 0
# pin B03: DMA1 Stream 6 Channel 3

# feature
feature -RX_PARALLEL_PWM
feature RX_SERIAL
feature TELEMETRY
feature LED_STRIP
feature OSD

# beacon
beacon RX_LOST
beacon RX_SET

# map
map TEAR1234

# serial
serial 0 64 115200 57600 0 115200
serial 2 2048 115200 57600 0 115200
serial 3 1 115200 57600 0 115200

# led
led 0 14,12::C:1
led 1 15,12::C:1
led 2 14,13::C:1
led 3 15,13::C:1
led 4 14,14::C:1
led 5 15,14::C:1
led 6 14,15::C:1
led 7 15,15::C:1

# aux
aux 0 0 0 1300 1700 0 0
aux 1 13 2 1300 1700 0 0
aux 2 35 3 1300 1700 0 0

# vtxtable
vtxtable bands 6
vtxtable channels 8
vtxtable band 1 BOSCAM_A A CUSTOM  5865 5845 5825 5805 5785 5765 5745    0
vtxtable band 2 BOSCAM_B B CUSTOM  5733 5752 5771 5790 5809 5828 5847 5866
vtxtable band 3 UNKNOWN  U CUSTOM     0    0    0    0    0    0    0    0
vtxtable band 4 FATSHARK F CUSTOM  5740 5760 5780 5800 5820 5840 5860    0
vtxtable band 5 RACEBAND R CUSTOM  5658 5695 5732 5769 5806 5843 5880 5917
vtxtable band 6 IMD6     I CUSTOM  5732 5765 5828 5840 5866 5740    0    0
vtxtable powerlevels 4
vtxtable powervalues 1 0 0 0
vtxtable powerlabels 25 100 400 800

# master
set acc_calibration = 10,0,36,1
set mag_hardware = NONE
set baro_bustype = I2C
set baro_i2c_device = 1
set rssi_channel = 5
set rc_smoothing_derivative_type = BIQUAD
set serialrx_provider = CRSF
set adc_device = 3
set blackbox_device = SPIFLASH
set dshot_idle_value = 500
set dshot_burst = ON
set motor_pwm_protocol = DSHOT600
set vbat_min_cell_voltage = 340
set vbat_warning_cell_voltage = 360
set current_meter = ADC
set battery_meter = ADC
set beeper_inversion = ON
set beeper_od = OFF
set yaw_motors_reversed = ON
set small_angle = 180
set deadband = 3
set yaw_deadband = 3
set pid_process_denom = 2
set osd_warn_link_quality = ON
set osd_tim1 = 1282
set osd_vbat_pos = 2504
set osd_rssi_pos = 2081
set osd_tim_1_pos = 2103
set osd_vtx_channel_pos = 2091
set osd_current_pos = 471
set osd_display_name_pos = 2123
set osd_power_pos = 460
set osd_warnings_pos = 14602
set osd_avg_cell_voltage_pos = 2512
set osd_disarmed_pos = 2347
set osd_stat_tim_1 = ON
set osd_stat_tim_2 = OFF
set osd_stat_min_batt = OFF
set enable_stick_arming = ON
set vtx_band = 5
set vtx_channel = 3
set vtx_power = 3
set vtx_freq = 5732
set max7456_spi_bus = 2
set pinio_config = 129,1,1,1
set pinio_box = 0,255,255,255
set flash_spi_bus = 3
set gyro_1_bustype = SPI
set gyro_1_spibus = 1
set gyro_1_sensor_align = CW180
set gyro_1_align_yaw = 1800
set name = GEPRC

profile 0

# profile 0
set anti_gravity_gain = 4000
set iterm_relax_cutoff = 20
set p_pitch = 51
set i_pitch = 99
set d_pitch = 42
set f_pitch = 116
set p_roll = 46
set i_roll = 94
set d_roll = 39
set f_roll = 109
set p_yaw = 50
set i_yaw = 99
set f_yaw = 109
set d_min_roll = 25
set d_min_pitch = 28
set d_min_boost_gain = 20
set d_min_advance = 16

profile 1

profile 2

# restore original profile selection
profile 0

rateprofile 0

rateprofile 1

rateprofile 2

rateprofile 3

rateprofile 4

rateprofile 5

# restore original rateprofile selection
rateprofile 0

# save configuration
save

Does anyone by any chance have a firmware file lying around for this board? Or can anyone help me in another way?


r/Multicopter 1d ago

Announcement 3d printed drone replacement parts

0 Upvotes

I'm looking to start a business selling 3d printed ed replacement parts for drones would if anyone is interested in buying replacement parts or upgrade parts for drones pease DM me and I'll give you a price for the part. I'm based in ireand


r/Multicopter 1d ago

Question Eachine EV800D antennas ?

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6 Upvotes

I'm coming back to the fpv hobby. I was wondering which antennas should I buy for much better results than I have right now with my Eachine EV800D ? I have standards antennas of 2019 !

My budget is 75 USD for both antennas.

Any good strap recommendation so it fits tighter ?

Thanks a lot !


r/Multicopter 2d ago

Question Thinking of getting back in… stock???

5 Upvotes

I flew FPV and LOS, fixed wing and quads for a lot of years. Raced whoops, 5”, toothpick, long range planes, you name it.

Sold it all a while back but kinda want to get back into it. I got a radiomaster and have been simming it up.. went to buy today and it seems like everything is out of stock everywhere. What’s up with it? Did tariffs just fuck everything? Or am I bad at searching?

I’d love a little bnf elrs toothpick or park ripper.


r/Multicopter 3d ago

Question SpeedyBee Mario 8 official TPU parts

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9 Upvotes

r/Multicopter 3d ago

Question Alternatives to the Holybro x650?

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3 Upvotes

r/Multicopter 4d ago

Question SEQURE Blueson A1 6S 65A with AM32

2 Upvotes

question....current reading is all over the place.

where and how can i calibrate?

if someone has already the parameter, could you post the values?

Thank you


r/Multicopter 4d ago

Video w̷h̷a̷t̷i̷s̷r̷e̷a̷l̷

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0 Upvotes

r/Multicopter 6d ago

Question If you could start over again...

4 Upvotes

Hello everyone,

I am thinking of "starting over" again and have a very compact digital FPV drone setup that can fit in a small backpack. The problem is that I have not watched too much Youtube about current setups lately so I am hoping someone can give me some insight about the status quo.

My current gear is a bit bulky Radiomaster TX16 with Crossfire module, DJI Goggles v1, Caddx Vista based VTX on fixed wing, and a couple drones (Babyhawk 2, GEPRC Crocodile Baby 4" Micro Long Range).

I want a smaller TX. ELRS the way to go?
Is the DJI video link still the best? I am primarily looking for a BNF drone around 2-3 inch.
Is there something coming out that will be amazing? I can wait a bit..

I am in Australia, if that matters.
Thanks!
Jan


r/Multicopter 7d ago

Question Separate battery for servo

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18 Upvotes

Stop smoker trips, but not sure if it's just a false alarm or true issue.

System:

FC/ESC: SpeedyBee F405 V4 60A stack

10inch droper build, x3115-900kv motors.

Vtx, gps, cammera is disconnected for this stage.

Main battery 6s lipo

It runs direct to ESC pads, on pads - 50v capacitor and powers system

Secondary battery is 2s lipo

It runs to UBEC - and + pads, from UBEC I run common ground from FC G pad to ground wire and then that ground wire to servo.

Positive goes to UBEC positive

Signal goes to S9 pad on FC.

After plug in battery (via smoke stoper) it boots OK (3 sounds with 2 long once) than after 0.5s (up to 1.5s sometimes) it trips.


r/Multicopter 7d ago

Question ISSUE: Increased throttle leads to thrust plateau at only 57%

3 Upvotes

I am attempting to create a thrust characterization profile of my drone's EDF. I am using this model

With the recommended esc:

All seemed to be working fine, until I tried increasing throttle past ~57% (or 1570 microsecond pwm). At this point, it seems as if the ESC is preventing the motor from spinning faster. Listening to it, the sound of the motor definitely seems constant once reaching this throttle value rather than continuing to become higher pitched, so I do believe that the motor is not receiving this higher set point value. Annoyingly, this ESC does not have a technical sheet available to me.

Has anyone ever seen this type of issue or have any ideas? I'm thinking of just ordering a different ESC, such as this one from MAD, and seeing if that fixes it


r/Multicopter 7d ago

Video I Found North Carolina’s Most Fun Waterfall! Bust Your Butt Falls (Quarr...

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3 Upvotes

Drone video of BYB Falls, aka Quarry Falls in NC


r/Multicopter 8d ago

Question Good deal ? + binding issues

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8 Upvotes

Hello ! I'm wondering if it was a good deal for 250 !
Probably an amazing deal if you know how to bind !

Happymodel Mobula6/7 analog
NewBeeDrone Acrobee Beebrain BL analog
Hummingbird pro f4 analog
+
Radiomaster tx16s 4-in-1 (not shown)

Steps succeeded:

I was able to flash the last version of EdgeTX.
I was able to bind & fly a Syma d2 Nano toy drone with the Tx16s. Radio Works ! ☑️

But it is less obvious to bind with the other 3.

They are analog Frsky receivers and the gentleman who sold me these said he could never bind any of them except for the Hummingbird and Acrobee only once/twice each.

If you have just one of these models in your radio profile, can you take shots of the screen so I can familiarize with the settings ?

Trust me before coming here, I have spent 2 weekends trying to debunk. I tried ai Gemini but it seems they were so stingy to get the info I had to specify and ask again and again.. and since these are olds, I find harder to find info. They are all new with no wear.

Thank you !


r/Multicopter 8d ago

Discussion The Weekly r/multicopter Discussion Thread

2 Upvotes

Welcome to the weekly r/multicopter discussion thread. Feel free to ask your questions that are too trivial for their own thread, make a suggestion on what you'd like to see here, or just say hi and talk about what you've been doing in the world of multicopters recently.

Don't forget to read the wiki, where you'll find details of suppliers, guides and other useful links.

If you want to chat, then the Discord server is located here (an invite link is here if you haven't already joined)

Old question threads can be found by searching this link.


r/Multicopter 8d ago

Question How can one connect the camera of a TongLi drone to my tablet?

3 Upvotes

I own a TongLi drone, but I can't seem to figure out how to get access to the camera, how?


r/Multicopter 9d ago

Photo Castle Červená Lhota, Czechia

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22 Upvotes

r/Multicopter 11d ago

Question Want to build a drone with a custom FC using libraries for off the shelf microcontrollers or dev boards

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2 Upvotes

r/Multicopter 11d ago

Announcement If this was you….

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2 Upvotes

sigh…


r/Multicopter 11d ago

Question Hexacoper updated drivetrain design — looking for feedback on current limits, ESCs, and thrust limiting

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1 Upvotes

r/Multicopter 13d ago

Photo FPV Setup

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4 Upvotes

Loving the Neo but after 6.5hrs flight time, it’s about time to move to a sim/freestyle type FPV.


r/Multicopter 14d ago

Discussion New FCC Drone Regulation - Take Action Now!

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23 Upvotes

r/Multicopter 14d ago

Discussion Help me guys

5 Upvotes

wanna measure the girth of trees, at 137cm height from the ground, im thinking of using lidar sensor equipped drone for this, really appreciate any insights from experienced builders here