ExpressLRS SPI Receiver Range Test (Crux35 Analog ELRS FPV Drone) 👍
This little board here actually runs an on board express lrs spi that stands for serial properly interface, uh receiver and anyone whos dealt with spi receivers on their drones, like whoops like this knows that these are not very good for range. Typically, if youre running the free sky ones, i just want to jump into this range test with you guys to show you that the spi receivers of this of this drone is shockingly good. So lets lets. Take a look. Let me go over the test parameters before we fly so im running the happy model. Slim pro for my dbs tango 2.. I have set my output power to 100 milliwatts. I think thats comparable to my team, black sheep frisky mpm, which also runs at 100 milliwatts and i kind of dont feel like walking so were gon na try to avoid that today with this range test, so yeah thats, the test parameters express rs, 250 hertz, 100 Milliwatts so lets get it up in the air. I want you to notice the lq in the lower right hand corner there, look at how crazy that is two minutes. Just ignore that thats my transmitter. This is, i mean this is crazy. To me, this is an integrated receiver, guys express lrs, integrated receiver. All right, lq is dipping to like 99 there all right im coming back now, but like do you see that this whole stretch here is about one mile wide, so i made it pretty much all the way to the end of this stretch, just amazing for an Integrated receiver guys uh Music, one minute.
One thing i also want to point out is the control link is just amazing, whether youre, far away or nearby theres, no latency it just it feels great, and my hands are shaking a little bit and my hearts pounding, because i i really didnt want to go. Get it this is uh. This has no gps, so its quite a bit ways away lets uh land, and then i want to do another test for this next test. Im actually going to fly into the woods but im going to make it a little more difficult on express lrs im, dropping it to 25 milliwatts lets see if i can fly into those woods see if we get any fail safes with the elrs spi receiver. On the crux 35, all right were launching im gon na try to take it easy here, because theres, a lot of ghost branches now remember, im not sitting hardly optimally at all, not bad going into all this scraggle Music, oh Music, its not even well there. We go a little bit of drop Music. Music lets go under here. Music again were all still operating on 25 milliwatts. Here minute i mean thats really impressive to me guys for just 25 milliwatts integrated receiver, again, Music, all right so thats a little test. So lets talk about what weve learned, so, although i sounded excited about the results that i got, lets take a moment here and pull back and examine the technical details of all this, and why actually my result is not that surprising lets go back to what weve Been using thus far in terms of the serial peripheral interface or the spi receivers on drones, like this, the frisky spi receiver, implementation has actually never been official, frisky, d8 receivers or d16 integrate receiver integrated receivers on models like this have always been reverse engineered and thats Part of the reason why there is such a variance from model to model theres, no consistency over the years, ive flown a lot of different models, and you just never really know what kind of frisky receiver spi receiver experience youre going to get with express lrs.
There are no reverse engineered elements. The specifications are completely totally open source. Any hardware based quality issues aside. You should actually be able to expect considering same antennas and everything else you should be able to consid get the same experience as a full, fledged external express, lrs receiver right, and not only that. It should be a consistent experience from model to model. As long as the manufacturer is implementing it properly and because its open source, that spec is out there its easy to find its not a mystery, they should have no problem implementing it. And i think that, with the crux 35 and the onboard express receiver thats, what were seeing here, in my opinion, in the long term, frisky d8 or d16 spi receivers, theyre dead. I would be surprised – and you could come back to me and uh – give me hell on this video if im wrong, but id be surprised if, in a couple years that many of the manufacturers are at all bothering to provide a frisky, spi receiver. I think a lot of them are going to jump on board. Integrate express lrs and for the micro world express lrs is likely going to become extremely dominant for years, frisky d8 and the sbi receivers we had they did their job, but im looking forward to getting away from that and doing express lrs for my micro. So i hope you learned that spi receiver is maybe not gon na, be a thing that you should dread, especially when you see that its powered by express lrs all right.
So with that being said, guys, let me know if you have any questions and, as always, have a great day im gon na do some flying the crux by the way, the crux 35: this drone kicks ass. I love it. Im gon na have a full review for you guys, but this was just a look at express lrs for today uh. So anyway, you guys take care im gon na.