Happymodel was the first manufacturer to seize the opportunity for a quick buck and produce ELRS hardware. ELRS is an open source control link and I am pretty sure you have heard about it by now. I am a big fan of ELRS - been watching them basically since the beginning.
I am super stoked seeing more and more manufacturers implementing this Open Source hardware and I am confident that sooner or later it will replace FrSky D8 compatible SPI receivers on AIO boards.
In this article I would like to feature a project that I have recently learned about - the YOLO flight controller. Actually it is not a single flight controller, rather a family of designs that share the same base. The aim is to provide something for everyone: from 1S to 6S!
Finding this now, after writing my article about my “perfect” flight controller is a big coincidence, really fits perfectly and makes me totally pumped about this flight-controller.
The Eachine US65 Pro has some sentimental value for me, since the first article I wrote on this blog over three years ago was about the Eachine US65. A lot has happened since then and I was super excited when Banggood offered to send me one for review - unfortunately at this point I am already a bit late to the party since this copter has been released in late 2020. If it is still a good choice in 2021 you will find out here.
The Eachine US65, is a 65mm, 2S whoop set - it comes with the copter, batteries, charger, props and a nice carrying case.
C Rating? Mili Amp Hours? How many cells?
When it comes to the LiPo batteries we use in our hobby, there are a couple of specs you simply need to know about, what they mean, how to interpret them and most importantly how to compare them.
At first all those specs seem a little bit overwhelming, but when you look at them one at a time, they all make sense and are not all too complicated.
And this is what this post is all about, I will look at all the different specs and explain what they mean and how they interact with each other. I will also give you some general LiPo related tips.
The Happymodel Crux 3 is a super light weight 3” toothpick based on Happymodels CrazybeeX all in one board. And light weight is not just a buzzword in this case - the model weighs in at just under 42g without a battery (just 70g with a 2S 450mAh GNB battery).
When I first saw the URUAV UZ85 on Banggood, I could not believe it - a 85mm copter for 78$? I have to try this one! When I received it, I was wondering about the package - why is it so small - did I get the wrong item?
A lot of brushless whoops came out lately, but which one is the best? In my opinion there is no one single best brushless whoop - it depends on what you want to do, this is why I decided to go with different categories.
Are you just starting out, do you want to fly indoors or do you prefer to fly outdoors, do you want HD footage or is DVR enough for you?
In this article I want to talk a little bit about battery connectors. Battery connectors - you wonder? Yes! What might at first sound like a boring topic with not much to say, turns out to be a quite interesting one, especially when it comes to brushless whoops.
Every mechanical connection is a place where electrical energy can be “lost” - or to be physically correct - translated into heat. You want your plugs to be as lossless as possible, so that all the energy can reach the place where it should be used - mainly the motors.
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.
When I first saw the Geelang Wasp85 on Banggood I thought: “Ah something different” - I want to take a look at that. Bangood was kind enough to send me one to check it out.
I was hoping that it is a bit of a sleeper and surprises by just being plain awesome, unfortunately that was not completely the case.
The total weight is 46.5g without batteries and 63g including two 300mAh, 1S batteries. I like to fly it with GNB 2s, 450mAh batteries and with those it weighs in at 75.2g.