OpenLRS - thUndead's MODs :D

[thundead]

Thank you very much for the Beer :) will be used wisely for the upcoming firmware :D

I'm currently working on improving recovery times.

Let me know how the flashing went :D

Mihai.

Hmm I kinda thought that was the case, serial ppm isnt an option. So I'm limited to 8 channels right now.

I am going to use 1 switch to control my OSD (apparently possible using a 3pos switch) and have pan control only on my cam and use another pot on my tgy9x for the gain on my guardian.  Once I have everything set up and i have proved that the guardian works well and my RTH function works well I will take the gain channel and use it for tilt.  So I will swap everything about, kinda long winded way of doing my setup but it should work.  I have been reading up on adding a head tracker to my radio so with the OpenLRS and your firmware things should be pretty slick.

I have just tested that the OpenLRS all works out of the box with the standard FW on it (ok its on the wrong frequency but I doubt it will matter for 5 minutes in my house lol) just about to flash with 459Mhz FW wish me luck

PS I added to your beer fund as a thanks, as you sent me enough information on youtube replies and are doing allot here. Dont drink it all at once or your head will hurt

John

[SouthPawPaul]

Now that's odd as I get an RSSI voltage on Servo pin 9 with my v2 hardware unless of course servo pin 9 is actually channel 7?

[thundead]

hmmm try this:
in the config.h section go to
#if (RX_BOARD_TYPE==2)

and change #define RSSI_OUT 10 //Servo7 or RSSI to

#define RSSI_OUT 12 //Servo9 or RSSI

Mihai :)

[thundead]

hows the fhss holding up btw ?

[Devonian]

I flashed my v1 boards with the RSSI firmware and made a short video of the output (pin 9 on v1 Rx)
I use these RSSI signal strength meter on some of my VTx's:
http://www.dpcav.com/xcart/product.php?productid=16562&cat=0&page=1

You can see the signal strength percentage at the bottom right of the video...


OpenLRS_RSSI_459MHz


I notice no beeps for lost signal packets at the Tx end now - should it be like that Mihai?
Would be nice to retain that I think.
Haven't looked through the code, I simply uploaded your f/w and made the quick test.
I got to about 25 metres and several brick walls in the way in micro power mode - pretty good I think.

Nigel.

[thundead]

Thanks for the quick test Nigel :)

Nope, its not beeping because the FW is uni-directional so no telemetry.

I'm still improving the FHSS feature so telemetry mode is not a priority yet.

Anyway, everyone uses RSSI on their OSDs and RSSI goes to 0 whenerver a packet is lost or if FS initializes :)

If you feel that RSSi voltage is still jumpy, just play with the RSSI settings a bit :) My RSSI_SMOOTH is 100 now and really happy with it :)

Mihai.

[thundead]

yup, ch 7 is definitely the RSSI out for the v2 board apparently. I'll have a quick look again over the code and maybe I can spot something lol.

Re-change the code to the original until I figure out what's the prob.

Cheers,
Mihai

[thundead]

Right, try this

as before , in the board 2 section
paste this over:

#define RSSI_OUT 12 //Servo9 or RSSI
     
      #define Servo1_OUT_HIGH PORTD |= _BV(3) //Servo1
      #define Servo2_OUT_HIGH PORTD |= _BV(5) //Servo2
      #define Servo3_OUT_HIGH PORTD |= _BV(6) //Servo3
      #define Servo4_OUT_HIGH PORTD |= _BV(7) //Servo4
      #define Servo5_OUT_HIGH PORTB |= _BV(0) //Servo5
      #define Servo6_OUT_HIGH PORTB |= _BV(1) //Servo6
      #define Servo7_OUT_HIGH PORTB |= _BV(2) //Servo7
      #define Servo8_OUT_HIGH PORTB |= _BV(3) //Servo8
      #define Servo9_OUT_HIGH PORTB = PORTB  //Servo9 /RSSI

let me know if that did it :)

[thundead]

Hmmm that is strange.....

I'm looking into the issue now.

[SouthPawPaul]

I am properly confused.

Your v1 RSSI video shows your RSSI up @ around 2.6v and then drops when you put it in your makeshift Farady cage :)

The v2 boards seem to show a 3.29v RSSI voltage. (confusion #1).

When I read up about analogWrite it tells me that calling this function with a pin number and a value in the range of 0-255 will output a PWM signal on the specified pin.

A PWM signal is a square wave, and the duty cycle of this square wave is altered depending on the value passeed to analogueWrite(Pin#, 0-255); according to the docs.

How are you measuring a voltage drop on a PWM signal with a DMM? As far as I can tell, the voltage should remain constant and the frequency of the pwm signal changes? (confusion #2)

This is hurting my head.  :shrug:

[thundead]

Yup, I'm getting over 3v in the last FW as well.

THe max output from the arduino is 3.3v and I limited the pwm to 250.

It's not a voltage drop that's the thing. What pwm does is it switches 3.3v on and off very fast.
What the multi-meter sees is a voltage depending on how the PWM duty cycle is.

Same principle applies for motor speed control. You PWM the motor's VCC and motor sees a specific voltage according to the duty cycle.

Hope that sorted things out :)

I am properly confused.

Your v1 RSSI video shows your RSSI up @ around 2.6v and then drops when you put it in your makeshift Farady cage :)

The v2 boards seem to show a 3.29v RSSI voltage. (confusion #1).

When I read up about analogWrite it tells me that calling this function with a pin number and a value in the range of 0-255 will output a PWM signal on the specified pin.

A PWM signal is a square wave, and the duty cycle of this square wave is altered depending on the value passeed to analogueWrite(Pin#, 0-255); according to the docs.

How are you measuring a voltage drop on a PWM signal with a DMM? As far as I can tell, the voltage should remain constant and the frequency of the pwm signal changes? (confusion #2)

This is hurting my head.  :shrug:

[thundead]

Ok please try this :
in config.h

#define Servo9_OUT 11 //Servo9

#define RSSI_OUT 12 //Servo9 or RSSI

Hope it was that easy :))
Lemme know if it worked.

Mihai.

getting 0.000v on channel 9 now :(

EDIT

Seems I can put the RSSI only channel 8 easy enough

#define RSSI_OUT 12 //Servo9 or RSSI


changing the 12 to 11 meaning...

#define RSSI_OUT 11 //Servo8 or RSSI


It is strange I can move it around from where it was on channel 7 to channel 8 but not 9

[thundead]

melih's coding is a bit weird. For example, the fw sends 8 channel servo data so in theory channel 9 shouldn't do anything anyway.

Could you please test the FS and maybe do a quick range test in micro mode ?

Cheers,
Mihai.

Ive tried what you suggested, its a no go.  I posted over at Flytron also about the issue of it being on Channel 7 not 9 and that I cant change it.  I think Melih may have goofed with the coding

[Devonian]

Mihai,

Would it be possible to simply copy/paste your various bit of code into the fully working OLRS_V_1_10 firmware?

If so, I may just have a go at that over the weekend...(wish I could program properly!!).

Nigel.

[thundead]

FS aka Fail Safe :) with everything on , hook up a servor or something and hold it in some position. Hold the TX button pressed until it beeps :) , turn tx off and see if the servo goes to where you put it :)

Test the FS?