21-12-2014, 12:12 AM
It was also using a lot of power with the 8" props and duration was suffering badly
So I decided to go to 10" carbon props and with these nicely balanced the duration dramatically improved but the handling suffered and no amount of tuning would get it to approach the control I felt I had with the 8" props.
So I thought I'd have a go at flashing the firmware on the speed controllers in the hope that this would help. Simon K has famously written and shared some very nice firmware for just about every suitable ESC there's a big list you'll find if you google "simonK firmware"
Only trouble is that HK changed the board on their 20A Multistar esc, the one with on-board BEC. The firmware is no longer compatible with it and it'll smoke up big time as soon as the throttle is opened. The Multistar 20A opto ESC can be flashed and does work really well but it needs to be flashed with the 8kHz version of the firmware. It's called "keda 8kHz"
The first test flight with the new firmware went well I'm still tweaking the settings on the KK2 board to try and find the optimum but having the new firmware has made a big and positive difference I can notice it already.
here's a bit of video from todays adventure
http://www.youtube.com/watch?v=eb95veUK4VY&feature=youtu.be
So I decided to go to 10" carbon props and with these nicely balanced the duration dramatically improved but the handling suffered and no amount of tuning would get it to approach the control I felt I had with the 8" props.
So I thought I'd have a go at flashing the firmware on the speed controllers in the hope that this would help. Simon K has famously written and shared some very nice firmware for just about every suitable ESC there's a big list you'll find if you google "simonK firmware"
Only trouble is that HK changed the board on their 20A Multistar esc, the one with on-board BEC. The firmware is no longer compatible with it and it'll smoke up big time as soon as the throttle is opened. The Multistar 20A opto ESC can be flashed and does work really well but it needs to be flashed with the 8kHz version of the firmware. It's called "keda 8kHz"
The first test flight with the new firmware went well I'm still tweaking the settings on the KK2 board to try and find the optimum but having the new firmware has made a big and positive difference I can notice it already.
here's a bit of video from todays adventure
http://www.youtube.com/watch?v=eb95veUK4VY&feature=youtu.be
“The knack of flying is learning how to throw your machine at the ground and miss.”
"When once you have tasted flight, you will forever walk the earth with your thoughts turned skyward, for there you have been, and there you will always long to return." ~Leonardo Da Vinci