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 iFlight Alpha A85 is the big brother of the A65. As the name suggests, this one is 85mm from motor post to motor post. And is capable of recording HD footage to the onboard DVR.
The quadcopter is advertised as “Indoor” - I don’t really think that this is true for any 85mm quad, except if you really have a big indoor space. At least for my apartment, 85 mm is way too big. I mean, I can fly it - but it is simply no fun. In a bando on the other hand, this is obviously a different situation - any place that you can explore, you will have a lot of fun with this one.
RSSI is the abreviation for Received Signal Strength Indicator - this sounds pretty self explanatory, but let’s look a little bit more into it. With wireless signal the RSSI metric is often used with wireless signal to get an idea about the strength of a received signal.
There is no standardized relationship of any particular physical parameter to the RSSI value, vendors usually define that for themselves. But what is standard is, that higher is better and 0 is the lowest possible (and thus, worst) value.
Thinking about building a 1S brushless whoop and you are not sure which AIO flight controller to use? I want to show you a couple FC’s which I think are viable choices and explain what I am looking for in my 1S flight controllers.
Obviously there is no ONE perfect flight controller, otherwise this article would be pretty short. It depends on what you are looking for, and this might be different for everyone. I will show you what I look for and how my decision process looks like.
The Alpha A65 is iFlights rendition of a 1S, 65mm whoop. I was very excited to see an iFlight whoop since I usually really enjoy their ready to fly products, like the Green Hornet Cinewhoop which I reviewed a couple of months ago.
Their products are usually very well thought out and super solid. Spoiler alert: The iFlight Alpha A65 is no different in that regard. But let’s see what exactly it brings to the table.
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.
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.