kvosd / mwosd Perfect Companion for naze32

[MrBen]

well I will either try kv2.3 or mwosd later

[Martink1974]

did try mw osd before , worked ok in flight

rssi when working with ezuhf seems to respond slightly slower (not much takes a extra sec to reactwhen turn of uhf tx)
on other hand pwm rssi is reported to work so you might want to tag off pin 26(rssi) and 21(gnd) ben and connect them up will prolly function better
saving pids now works (big plus for me with no bt)
virtual current sensor don't show amps no matter what I do (prolly still under development)


Im gunna put it on both of mine the pc gui is better and its in development where has kv development has stopped at 2.3
will have to hook up a gps when I put a naze32 on something bigger

naze32 4 win

I did edit config.h before compiling in arduino
uncomment following lines

#define BASEFLIGHT                // Undefine this if you are using BASEFLIGHT / others to correct for incorrect heading  - (thanks papa)
#define FASTPIXEL                 // Optional - may improve resolution - especially hi res cams                                       - (was better with my cam that's 800tvl)

[MrBen]

Here is KVOSD in action

KVOSD 2.2 on a Spanky FPV Quadcopter	Small | Large

[papa_lazerous]

Thanks for the heads up about the fast pixel define I wasn't aware of that. I'm going to flash the other font pack later to compare

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[xxpitt]

looks great, nice and clean just the essentials on there you need. the altitude didn't look very accurate though, was saying you was 20m up when you was about 3m

[MrBen]

yeah I didnt have a sponge/foam over my baro, cant find them on ebay uk for a tenner anymore now either

[xxpitt]

can you get ground speed on there?

[MrBen]

yes if you add a gps

[xxpitt]

thats good to know could replace tiny with it on the qav, unless i go with the naza on there

[Martink1974]

help calibrating mw osd


Calibration - Voltage

Main or video voltage connected directly to OSD
1.If > 4s select "Enable ADC 5v ref"
2.If "Enable ADC 5v ref" is changed, save and restart the OSD
3.With a voltage meter, change "Voltage adjust" and save until the voltage on the OSD matches the meter
4.Repeat for video if appropriate



Calibration - Current

Hardware current sensor - with a current meter
1.Select "Enable ADC 5v ref"
2.If "Enable ADC 5v ref" is changed, save and restart the OSD
3.Starting at zero, increase "Zero adjust" to display correct Amps at motors off
4.Starting at max, decrease "Amps adjust" to display correct Amps at mid - high throttle setting
Software current sensor - with a current meter 1.Starting at zero, increase "Zero adjust" to display correct Amps at motors off
2.Starting at max, decrease "Amps adjust" to display correct Amps at approx hover


Software current sensor alternative method - with a battery charger
1.Change "Zero adjust" to display correct Amps at motors off - typically 0.3
2.Change "Amps adjust" to display "approx" correct Amps at mid throttle ( try bat capacity*8 where capacity is in Ah )
3.Fly a complete battery and note the total mah used on the OSD and put back into the battery by your charger
4.The correct amp adjust = old amp adjust * charger mah used / OSD mah used

Calibration - RSSI
1.If using analogue RSSI on the OSD select "Enable ADC 5v ref"
2.If "Enable ADC 5v ref" is changed, save and restart the OSD

Via OSD menu
1.With TX approx 2-3 m from the RX, select calibrate RSSI from OSD menu
2.When timer reaches 10, turn the tx off and wait until the timer finishes counting down before turning back on
3.Save settings
4.Minor adjustments can be made on the GUI if necessary


Via GUI
1.Set RSSI min to zero and RSSI max to 255 and write
2.With TX off, increase RSSI min and write. Repeat until OSD reads 0% consistently
3.With TX on, decrease RSSI max and write. Repeat until OSD reads 100% consistently




this video will help many with on screen config


https://www.youtube.com/watch?v=pd_PXnG_PkI

[Martink1974]

Quick vid showing mw-osd in action

Used this flight to calibrate virtual current sensor

It's way out in vid but does work pretty well now

https://www.youtube.com/watch?v=QBYFYbscE04

[papa_lazerous]

I was messing with my osd firmware last night I went back to kv osd 2.3 with the large font as I'd only tried it with small before. Quite happy with that, but figured I'd go back again to mw osd firmware and when I did I get nothing on the osd only my video. Probably something stupid couldn't find out what it was last night though. Thinking I might need to erase the eeprom to be safe. Anyone else had this issue?

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[Martink1974]

At one point I had a similar weird problem, I tried kv EPROM thing to no, wish I could say what got it working but I was messing in mw config tool when it started working again , maybe pal NTSC settings not sure , I'll post screen shot of what works if no joy , a little mad really I messed for an hour, Ben had problem maybe he could comment if he knows what fixed it other than witchcraft

[papa_lazerous]

I probably did miss something like pal NTSC it was late and I'd had a beer. Will look again tonight but other than that I'm not sure what it could be as I've had it working before

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[papa_lazerous]

I got everything running again, I did have it set on NTSC like a numpty

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