The GEPRC Stable 12A stack is intended as an all in one solution for toothpicks and microquadcopters.
Being an AIO, it is flight controller and ESC in one board. But this is not all - it would not be a stack without the video transmitter. The flight controller does not come with an onboard SPI receiver, so you have to provide your own receiver of choice.
A couple of days ago I had a chat with a guy who had troubles to get his quadcopter up and running. This made me think: if he had those issues, he might not be the only one. Especially when you are just coming into the hobby, all of this can get quite overwhelming.
Although this checklist is aimed at pre built - ready to fly - quadcopters, basically the same steps can be taken when building your own - in this case I would apply the “test early, test often” paradigm to catch mistakes as soon as possible. Going back one step is not as bad as having to disassemble the quadcopter completely to fix the one cold solder joint.
The Tramp Nano is ImmersionRC’s attempt at a nano sized video transmitter - but this one is different in a couple of ways. First, and most importantly, this video transmitter is capable of an output power of up to 500mW (25, 200, 350, 500mW).
The Flywoo Goku TX-Nano is a nano sized video transmitter and weighs in at just 1.4g without antenna and 2.3g including the antenna. The solder pads are very spacious and easy to solder to. Those are definitely the biggest pads I have ever seen on a nano sized VTX.
The VTX can be switched between 25, 50, 100, 200 and 450mW. Power and channel can be switched with the on-board button or via IRC Tramp protocol.
The BetaFPV M02 VTX is BetaFPV’s newest addition in the Nano VTX segment. I always liked the BetaFPV VTX’, because you can connect your FPV cam directly to it and from there wire everything to your flight controller - it is just a way cleaner setup in my opinion.
The M02 has a couple of very interesting tricks up its sleeve, some features that I have not yet seen on any other video transmitter of its size.
The EMAX Tinyhawk 2 Freestyle is the third micro quad released by EMAX that is built on basically the same stack as the Tinyhawk 2 and the Tinyhawk 2 Race both of which I have reviewed before.
Both are super solid quads that you can have a lot of fun with. One to fly at home and one aimed at micro racers. I have put a couple of hundred packs through each of them and have especially been enjoying the Tinyhawk 2 Race. Now lets have a look at the newest addition to the Tinyhawk 2 family.
The one thing that was annoying me with BetaFPV’s Lite Radio 2 is the power up/down time - you need to press that power button for what feels like an eternity to switch the radio on or off.
Unfortunately with OpenTX 2.2.x you cannot adjust the time needed to press to button to power cycle it, with 2.3.x you can. According to this thread in the Betaflight OpenTX fork you can run 2.3.x without any bigger issues (Big thank you to user knoopx for trying that out).
I have been asking BetaFPV for quite some time for an AIO with blackbox - obviously I was not the only one.
This toothpick sized flight-controller comes with 20A ESC’s and 8MB flash for blackbox logging. But the blackbox is not its only selling point. Apart from that it also comes with three full UARTS. Since it is tootphick sized, it will unfortunately not fit into most whoop frames.
BetaFPV’s LiteRadio 2 is a low priced transmitter aimed at newcomers to the hobby. This is quite a step up from their toy grade first iteration of this radio. In my opinion those two versions are not even worth being compared to each other, instead I will be comparing it to FrSky’s X-Lite (Pro) throughout this article.
There are two versions of the LiteRadio 2 - one for FrSky receivers, supporting the D8 and D16 protocol. And one version for the Bayang protocol which is often used in Silverware enabled whoops.
You can get the LiteRadio 2 in Mode 1 or Mode 2. If you are just starting out - go with Mode 2 - that is basically the de-facto default layout most of the people in the quadcopter hobby are using (throttle and yaw on the left gimbal, roll and pitch on the right one).