459MHz UHF legal Tx and Rx - Arduino based programability.

[Devonian]

Well done Mihai.
I'll test it as soon as I get 5 minutes to spare...

Nigel.

[thundead]

Be sure to check this thread http://www.fpvuk.org/forum/index.php?topic=3642.0 for updates :)

[papa_lazerous]

Funny you should suggest that thread I am there right now :)  I am just reading about the RSSI, and the lightweight FW.  I want the lightest FW possible as I dont see the point of bloating the Tx and Rx with code that I dont need, no telemetry wanted or needed through the OpenLRS but I do want good RSSI to feed into my EagleTree OSD Pro.  What pin is the RSSI feed coming from on a V2 Rx board? can I feed my OSD direct or do I need a filter to smooth it out a little

[thundead]

nup, no filter needed. you could add a 1-2k reistor ion your sig line to limit the current drawn by the osd.

[SouthPawPaul]

You're doing some great work Mihai. Keep it up.

I've got my OpenLRS sat on the bench here and haven't had the balls to fly it yet or fiddle with it, but my time will come :)

[thundead]

Cheers :) I'm still not confident enough on it to trust it with my tri but its getting there. Would be great if you could upload the current FWs and do some range checks/ FS checks etc. I will constantly try to improve the ultra light FW.

Mihai.

You're doing some great work Mihai. Keep it up.

I've got my OpenLRS sat on the bench here and haven't had the balls to fly it yet or fiddle with it, but my time will come :)

[papa_lazerous]

nup, no filter needed. you could add a 1-2k reistor ion your sig line to limit the current drawn by the osd.

Where on the Rx is the RSSI output?

[thundead]

OOh dear forgot about that sorry. It's the servo channel marked R. Its the first one from the right.

[papa_lazerous]

OOh dear forgot about that sorry. It's the servo channel marked R. Its the first one from the right.

Sorry if I am asking too much, Im on bed rest with pneumonia after the mother of all flu and I am going kinda stir crazy that I cant test out my OpenLRS.  Getting all the facts straight so I have everything in place.  There is no marking that you mention so I took a picture of my board and labelled it as I understand it.  The schematic doesnt help a whole lot as it doesnt show me how the actual Rx is laid out and my brain isnt working great right now (sickness sucks) is my labelling correct I hope so ;)

[thundead]

LOOOOOL riiiiight , you got the v2 board. I'm still on the v1 hardware haha

I'll have a look for the v2 boards and let you know but you got RSSI right, SCL SDA is for I2C protocol (sensors etc) and you program the thing from the 6 upper pins :) I'll draw u a diagram in a while

[papa_lazerous]

Yh V2 board here, brand new fresh out of the pack.  Just waiting to be used and abused :)  I know it isnt plug and play but some stuff really should be documented over at Flytron, as I am sure it wouldnt be hard to screw up the hardware without trying too hard

[SouthPawPaul]

I know what you mean. I'm a commercial programmer and also studied electronics for 10 years. This doesn't make me helpful, it just makes me dangerous!

[thundead]

Soo true haha. My gf always keeps 5m distance from me, the soldering iron and any other things that I have around me when I'm in the workshop haha

[thundead]

SouthPawPaul,

if you know anything about random number generators with an initial seed and how to resync a sequence would be v helpful for the FHSS implementation :) I'll make a new thread for some brainstorming.

I know what you mean. I'm a commercial programmer and also studied electronics for 10 years. This doesn't make me helpful, it just makes me dangerous!

[papa_lazerous]

LOOOOOL riiiiight , you got the v2 board. I'm still on the v1 hardware haha

I'll have a look for the v2 boards and let you know but you got RSSI right, SCL SDA is for I2C protocol (sensors etc) and you program the thing from the 6 upper pins :) I'll draw u a diagram in a while

I just looked over at Flytron at the V1 Rx and the Schematic for it, much easier to follow! all the connections are kinda obvious lol

Then I figured I would have a proper look at the V2 board and the pinout shown on the schematic, I would appreciate a double check but I think I got it right....