I already did a video on these super tiny receivers, see right here, um and also the micro module, which you can see is in this 3d printed case. Already that video, i will link down in the video description check that out. If you want to see details on those uh, they sent some additional parts here that expand their ecosystem, um i’m kind of curious as to why there’s, no other companies besides happy model getting into this express lrs parts – hopefully uh we’ll get some more competition in here, Because um, i do know that a lot of you guys are like weary about happy model and their quality control. Um now my thinking is under quality control is that they sell a lot more stuff than other companies. So uh say that you know company a is a really good company, but they only sell 10 parts and one person complains about a bad part: okay, that’s, a ten percent error rate um and everyone thinks it’s a good company, but company b let’s just say everyone Thinks they’re a bad company. You see 10 complains online 10 times the number of complaints, but then they they sell 10 times as more. They sell 100 of the same part but it’s the same 10 error rate or failure rate. So both companies are the same. Just the perception of company b is worse because they just happen to sell more because the failure is the same.
You get more complaints. You never hear about people that are like oh it’s great. It works perfectly. You only hear about the complaints so that’s my view on that i’m not going to get into that whole thing there, but i do wish that there was more competition in this area. I do like the fact that half a mile is um making some really interesting parts here and um. I hope to see more anyway. I have two all in one boards, uh they’re, basically their whoop boards, and so we have the uh 915 megahertz board here and what’s, interesting that i post some photos of these up on instagram and they’re like oh, this. These receivers are way too big they’re gigantic, and this is not a receiver. This is an all in one flight controller board, so okay, let’s just put one of these down. This is this board. Here has a 400 ac flight controller, um it’s got a video transmitter and the express lrs receiver built into the board, which is incredible so yeah if it were just a receiver, yeah it’d be too big, but this is like a you could basically build a whole Quad this little thing, which i’m going to eventually do and which is the point of this video, is: i want to show you what these look like before. I stick them into a quad and you can’t see them up close um. This board does come in a 950 megahertz version and 860 megahertz version so depending upon your region, you’re going to want to get the correct one for your region.
Just come with this uh standard, uh key uh antenna here. If you want like uh the antenna, that’s uh like like an immortal t, i think you have to get a separate. You can buy them separately for extra cost, but then for for smaller builds. You want something like this for reduction of weight, but yeah the antenna is detachable on this one here, but the vtx antenna is not on this particular version. But if you look at the 2.4 gigahertz version, this is what the 2.4 gigahertz version looks like. They got. The ceramic antenna so there’s no additional antenna for the receiver that whole receiver and the antenna is built into the board like that, but the vtx antenna is removable on this particular version. So comes separately like this. This is the other parts you get. The antenna plus uh that’s, the connector for the video and then uh. Of course, you get your battery lead here. It’S gon na be ph2 connector that’s pretty standard for this. I think the escs are um and everything. So basically, this is um this these. Both these words are based off of the crazybx um design, which has like the video transmitter and the receiver built in. So this is really only for 1s and the esds are only rated up to 5 amps, so you’re pretty limited in terms of what you could put this in uh. You know if you want to put this into like a 5 inch, 6s quad.
No! This is not going to work on that. This is going to be limited, like whoops um, maybe some toothpick class type of boards uh. You know on 1s, but you know again at 5 amps if you’re really pushing things and you crash, for example, and uh put a nice little burst of power or voltage through this board. It probably pops me c’s and some other components, because this is very densely packed, so for those of you guys that are probably pushing things really super hard and crashing a lot, i would not recommend this for you. This is. This is really going to be for those guys that are trying to build things that are super light. You know trying to maximize flight time those kind of things and um, not really, you know doing a lot of bashing. I don’t think these things are going to be able to take a lot of crashing uh, but for maybe you know, whoop style flying indoors on 1s uh should be okay, we’ll see, you know, um i’m, not sure. If i’m gon na put this into work. I’M thinking i’m gon na put this into the recon uh three actually see if it actually survives that one or not it’s gon na that’s, probably the upper limit of something you’ll probably want to put this in, but um just you know again looking at the board Again, get your power lead here for the battery lead and that a lot of you know things to solder.
You can disable the video transmitter on these boards. There is a uh solder blob here, somewhere, okay, so the solder blob is right there if that’s bridged uh. That means there’s power to the video on board with the transmitter. But if you don’t want to use the onboard video transmitter and you want to use a external video transmitter, you have to destolder that or get rid of that solar blob. And then you have solder pads here for the video in and video out for an external video transfer. I think the internal video transmitter is only limited to 25 ml watts, so you’re not going to be flying super far away. But if you disable the onboard video transmitter and solder on an external video transmitter, then you should be able to get more range that way all right. So this is how much the 2.4 gigahertz board weighs 4.58 grams. Now this is how much the uh 915 mega is boardways, with the antenna like i take it off. Uh 4.93 grams said yeah just think about about under five grams, for pretty much everything that you need to build a quad, except for the frame, the motors and camera. I think that’s it. You got a camera motors and a frame, and you got a whole quad and uh yeah, depending on what those other components weigh you know the quad could weigh pretty much next to nothing all right. So take a quick look at the uh module here.
This is actually only for the tea light, so here’s the antenna, it’s removable this uh, another 3d printed module case here, it’s actually like made out of aluminum or metal it’s for heat dissipation. They um designed this power module and so you’re going to have to consult the product pages, some diagrams and wiring diagrams on how to plug everything in don’t believe any soldering is going to be needed because you have to basically do some rewiring inside your tea light To basically reroute the power that’s, what this power module is for. It basically allows the 1s power to power the transmitter module without burning out the radio. So i actually bought another tea light here brand new one, because the one that i’m using for crossfire is actually modified already and it’s also broken so it’s not going to probably work with the setup here so i’m going to have a i’ll probably make a separate Video, maybe later the actual uh is pretty simple. You have to open it up and then these all the connectors and everything are right in the bag here and it’s fairly straightforward as to how you’re supposed to do the power rewiring. So basically, you have power coming in the battery in over here and battery out over here, and then that goes to the you know module here. So basically, you have a pass through that’s coming from the the 1s lipo it’s a battery and battery out.
This just goes back to the tealight board, and then these two here are one goes to the module this one over here and then another one goes to the tea light and that’s for the control of the um, the signal and everything pretty straightforward. If you look at the diagram, it shouldn’t be that hard to figure out, but it looks like um. This is a kind of a permanent install because it has like a thermal pad here and you have to screw this onto the back of the tea light. So this isn’t one of those where you can kind of swap it out in and out for a crosswire, you know maybe i’ll look into maybe see if that’s possible to do it could be possible, could be done if uh there’s some modifications, or maybe some 3d Printer parts might be able to do something like that, but it looks like this is basically going to be just for this tea light, so that’s. Why i’m? I got a separate tea light just for this one and another one for crossfire um, because it looks like it’s to be able to switch back and forth between this, and crossfire is probably not going to be that easy, also kind of wondering if this power module Might be uh useful for crossfire as well in terms of rerouting the power around um that 1s power limitation, if you don’t do the modification, so that i’m not 100 sure i’m going to investigate that, but putting this together and on the delay shouldn’t.
Be that difficult. If you just follow the wiring diagrams on the product page now regarding like tutorials and all this kind of stuff i’m, considering putting some of that together, um, basically, if you go to the discord and like the wiki page, they do have instructions on how to like. Do the flashing and all that kind of, and also on the product, page there’s, going to be some instructions on how to do the binding, for example, these the binding on on these all in one boards, uh it’s, just via the beautiful spi, bind rx command, because These are just spi receivers, they’re, just using a different protocol, so binding shouldn’t be too difficult, getting it going on on the board and then, of course, you use the um express lrs, lure script and open tx on your radio to initiate binding on that side. So none of the firmware, i think, needs to be updated at this time, but later on, when more because everything right now is still in beta. So later on, when more finalized trimmer comes out, i may do a tutorial on how to do firmware flashing, because right now things are still kind of early days, and i don’t want to put a video out that’s going to be outdated in a couple weeks. That’S happened before and i hadn’t end up just doing a lot of work and then taking the video down after like a couple weeks, which really is pretty annoying so i’m gon na wait and hold off on that until things kind of settle down.
You know this is really still for early adopters. In my opinion, if you’re someone that wants, like you know easy carefree type of like updates, you know you probably want to be looking at crossfire, because you don’t have to worry about like firmware. Mismatching problems. Make sure that all the firmware on there all the receivers and everything are exactly matched because crossfire takes care of that for you in the background, i don’t believe this system. This ecosystem does that yet um so you’re responsible for making sure that the firmware on the module and the firmware on the receiver are all compatible with each other. That’S kind of the big problem with the r9 system is that firmware mismatching problems, let’s tell massive um headaches and just all sorts of issues for end users, because it’s the ecosystem, wasn’t very friendly. So right now i think this is really for early adopters um. You know if you’re a newbie, i would stick with something a little bit more user friendly like crossfire or tracer, and just pay a little bit more money for that, and obviously, if you’re looking to the future, this might be the future if they can’t figure out The sort of firmware problems or the so the ecosystem, in terms of like that, making the firmware updates and all that kind of stuff, very user friendly and easy to do without a lot of thinking then yeah. This could be something for you down the road, but i think right now, it’s still kind of a wait and see sort of situation anyway, here’s just a quick look at the transmitter board regarding whether or not this will work with the x light.
It does not. This is specifically for the t light and whether or not i’ll work work for any other radios with the the s with the micro module or the not the micro module. Then the this, the nano modulus, what these are called there’s going to be a separate version. Later so happy model will make a separate version for the x light in the future, but that isn’t out yet um, hopefully i’ll get a hold of that one. But i don’t have an x like to test anyway, so i’m, not sure if they’re going to send me that so, but if you’re looking for that, one don’t get this, because this one is only for the tea light. Um wait for the next version. If you’re looking for ones that’s going to work for the x lite, okay, that’s going to do it for this, video i’ll have more videos on this later, as things develop and, of course, i’m gon na do some testing um, probably gon na put one of those All in one boards and my recon three is what i’m thinking right now uh one is too thick um let’s kind of cruise around see what kind of range you get. Oh yeah, you know again regarding questions regarding range uh. Your mileage may vary um it’s gon na totally depend on where you’re, flying and um what kind of obstacles are in the way 2.4 gigahertz is a little bit more um susceptible to things.
Um. You know blockages from like buildings and stuff like that versus 900. Megahertz can penetrate a little bit better in this, in that case um, but yeah range is really going to be totally dependent on where you’re flying you can put it on max power and in a urban environment you’re not going to get as far as someone in A really open, wide, open space, but generally speaking, the 2.4 gigahertz system here, i’ve from what i’ve been seeing from other you, people that have this, they are getting much better range than any existing 2.5 2.4 gigahertz system, um and much better latency. So, if you’re looking for much better range of latency over an existing 2.4 gigahertz system like a free sky, fly sky, etc, spectrum yeah, this is definitely going to outperform that uh to what extent um still a little bit up in the air. I know a lot of people are getting really far and then, of course, you know it really depends on on the uh. You know the specific situation that they’re flying under, so i would um yeah. If you’re looking for maximum reliable provable range, you know it’s, probably going to still be crossfire 900. You know that’s kind of the gold standard.