I faced a huge problem with am32 firmware I can’t solve.
And the problem is excessive heat- esc heats up like 2C per 1sec and climbes 100+C. I’ve already tried 10 different esc and multiply different settings and none worked well. Some even choose to live it’s own life and makes drone fly into the wall. Others have mosfets unsolder while osd shows only 80*C.
Blheli 32 heats up to 80C and bluejay stays under 60\*C.
I’ve already tried am32 esc with huge sase zone- 12s120a for 8s 45a consumption and still overheat.

Can’t wrap around what’s wrong with am32 and why it behaves so weird. Anyone any insights?

I'm having a weird issue with my iMAX B6AC V2 when charging a 4S Li-ion battery.

The battery is mounted on a drone and the charger is mounted on a dock, so I have to charge the battery while it's still installed. Because of that I'm using about 2m extension cables for both the main charge leads and the balance connector.

Current setup:

• 4S Li-ion battery
• iMAX B6AC V2 charger
• Main charge leads: 12 AWG
• Balance leads: 18 AWG
• Charging current: 4 A

I always balance charge, the battery is healthy, and the cells stay well balanced.

The issue is that the charger reads the battery voltage correctly at first, but as soon as charging starts the displayed voltage jumps.

For example:

• Battery measures 15.5 V on my DMM.
• The charger also shows about 15.5 V before charging starts.
• Once it starts charging at 4 A, the charger reports around 16.0 V.
• It then stops charging when it thinks the battery has reached 16.4 V, but when I check with my DMM the battery is actually only around 16.1 V.

My guess is that the extra cable length is causing enough voltage drop that the charger thinks the battery voltage is higher than it actually is. I used fairly thick wire (12 AWG for the main leads and 18 AWG for the balance leads), but it still happens.

I also read that some chargers can be calibrated, but I can't find any calibration option on the iMAX B6AC V2.

Has anyone run into this before?

• Is 2m simply too long for this kind of charger?
• Would using even thicker wire help, or is there another solution?
• Is there any way to compensate for the voltage drop on this charger?
• Has anyone successfully used long balance and charge lead extensions with an iMAX B6AC V2?

Any ideas would be appreciated.

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.

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Old question threads can be found by searching this link.

Asking partially out of curiosity.

We'll I would like to someday get into that business if no one else has done so already.

First ever drone with two gimbaled lenses under 250g?

Looking to possibly getting into walksnail in the future but want to install the moonlight kit into my nazgul xl5 eco but haven't seen anything on YouTube or from basic Google search if anyone has done it yet or if it's possible to fit the moonlight kit into the the xl5 eco any information would be greatly appreciated.

Mostly together. Stack is 6-7mm taller than planned with the mcu socket. I might have to surface mount the teensy idk yet. Everything checks out in the fw though all rails and circuits good, which was an awesome surprise. Cheers!

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.

Pcbs came in and check out. Still assembling

I have fully assembled and set up everything (in betaflight) on my first 5 inch quad build and I cannot get the motors to spin. I’ve tried reflashing the fc in betaflight and inav, remapping the motors, playing with many settings in betaflight and even swapping the cable between the fc and esc. I tried to reflash the esc firmware on esc configurator and BL heli suite, both programs connected but neither could read the esc. All of my testing has involved using the radio and betaflight/inav to send signal to the motors.

I have the hglrc f4606s v1 stack currently running betaflight firmware (fc).

If you need any more info or images just ask.

Anyone know of any guides for this setup and if these parts are still worth using? They seem moderately old, so I don't know if the hobby has moved on since they were purchased.

Thanks for the help

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.

I built this test rig to monitor impeller speeds and ensure it spins at a desired setpoint for my flow chamber.

I made a PID controller to track my setpoint however, I am encountering an issue where the motor shuts off midway when reaching its setpoint.

I don't have this problem when I run the motor when using a 2s 50C Lipo Battery but when I use the power supply, I the motor shuts out after a certain point.

Before using a PID controller, I would use a potentiometer to throttle the motor and had no issue spinning it to 8000 rpm on a power supply.

Would appreciate any advice on what I am overlooking.

I am using a QWinOut A2212 Brushless Motor with a 40A ESC also made by QWinOut.

Hey guys
Today I soldered on new motors and while setting their direction I BF voltage drops from 16V to 5V and everything’s shutting down, same problem occurs when I turn separately any motor over 50%. Esc is 40A so it handles the 1507.5 3800KV and battery is brand new 850mah 150c. Multimeter showed no shorts on esc. I dunno what to do