Recent content by --Oz--

EDIT: The admin's replied, there was some technical difficulty, all are fixed now Thanks!

Two of my threads are gone, others are reporting the same? Post if this happened to you too.

What the heck is going on, two of my threads are gone, others are reporting the same?

That is an average 130,000 rpm acceleration every 1ms (0.001sec) for 25ms! After many many attempts for personal rpm record, I did get my record of 3.34 Mrpm on Friday (5-17-2019). I always set the scope vertical cursors to my current record (in microseconds), so I can see when I beat my...

Bummer, same here, one of my threads disappeared too. This forum is dead, so no worries, so many other active threads (like RCgroups) and with much better formatting/features.

Taking your batteries down to 3.7 volts is bad for them, you will get way less life cycles out of them. 3.85v is the prefered landing, that leaves about 40% in them. Also dont charge them and let them sit for days. I have 6 turnigy graphene 4s-1300-65c (btw, there is no battery over 60C rating...

If that thing is sipping the juice (10min on 1.55AH pack), you dont need 100C rated pack. What about 3400/3500mAH Panasonic 18650 Li-Ion cells ( NCR18650B) ? Should give twice as long flight. They seem to be the highest energy density. I am guessing they will not just slide in, they are 18mm...

UPDATE: 5-18-2019 3,808,800 RPM, 63,480 RPS, 1338mph, 2153kph, 24.3M G's My other thread disappeared today, so I posted info here. OLD NEWS: Today I stepped it up a notch. Using a new circuit (hall sensor, fet driver, more coil voltage, 3mm ball, etc) I got to 1,579,800rpm, 26,330 revs...

Compatible with the iA6, iA6B, iA6C, iA10B range of receivers. I like sbus fir my quads, does your flight controller accept sbus? if yes, go that route.

I wanted to see how fast I could spin a ball magnet. Top speed sofar is 1,140,901rpm, 19.02KHz, maximum ball equator speed = 668mph (979kph), calculated the G's on the equator at that speed is 3.64 million G's, then,,,disintegration!

Get a $12~20 F4 FC thats compatible with chibeOs Arducopter, here is the latest firmware for the compatible boards. http://firmware.ardupilot.org/Copter/latest/ rcg info https://www.rcgroups.com/forums/showthread.php?3102183-Most-Integrated-Ardupilot-Flight-Controller-%28ChiBios%29&perpage=100...

I just looked at the instructables link, I highly don't recommend building a quad with them specs (plastic frame, crappy motors, low end esc). It also looks like he is using a low end normal transmitter/receiver.

MSP is simply multiwii serial protocol, all the FC use this, mostly just for setting up through the usb cable and the gui (betaflight/cleanflight/etc), but i guess, you can control roll/pitch/yaw/thro with it, usually that control comes from the receiver.

RC commands are mostly PWM signals, but most new FC use SBUS serial protocol. Its quicker and has upto 16 channels on one wire. The number one RC signal is PWM, its been around since the 1950's I think. Its simple 1.0ms to 2.0ms pulse width signal. 1ms being left, 2ms being right and 1.5ms...

i think the fc is 5v, its a ancient processor and firmware compared to the new stuff. for $12 get a stm32 F4 fc from ebay, its 3.3v, run betaflight, be happy whats the project, got a picture?