No matter if you are building a micro brushless quad or a 5″ racing monster, there is one motor related term that you should definitely know: Your motors velocity constant Kv measured in rpm/Volt. In order to get the most out of your quad you will select a motor and propeller combination that makes optimal… Read More »
Some weeks ago I wrote about using a silhouette portrait craft plotter for cutting solder paste stencils. The described process uses the collection of the gerber2graphtec python scripts to process the fabrication data from kicad and send the cutting instructions to the plotter. The solder paste stencils I did cut for the VESC came out… Read More »
Some more news on the previously hyped the $99 Eachine EV100 FPV goggle. Yesterday was bugfixing time (the distorted and gray bars are history!), today I found out a new tiny bit on the inner workings of this thing. This post is about the video receiver module. When I first opened the goggles and did… Read More »
There have been a lot of rumors and discussion about the $99 Eachine EV100 FPV goggles recently. I already did some teardown, component analysis, component identification, and analyzed the “diversity” feature of the receiver in my previous posts. With the goggles being more and more used, people experience a new problem with these goggles: Depending… Read More »
Roughly one year ago I started to work on the 1S tinyPEPPER ESC. At first, I did not want to design an ESC on my own. I had just finished my first tinyFISH FC PCB routing and was browsing banggood for a tiny and lightweight 1S ESC. To my surprise I could not find anything… Read More »
This post is a follow up on my recent Pagoda3/3B panel design. Recently I have been asked to do an updated revision of my previous pagoda antenna panel for easy ordering. Maarten Baerts recently updated his great pagoda design. My pre-previous article on how to order 160 antennas for 40 bucks was a great success… Read More »
I have been looking for a holder for my T12 soldering station tips for quite a while now. There is this one on banggood which looks good but seems to be priced a “bit” to high. I mean all it takes is some plastic and some holes. Wait plastic? Why not 3D print one? Firing… Read More »
Remember my post with the Eachine EV100 disassembly pictures? I was asking for help to identify the video decoder chip… It was this rcgroups post by Flycry who gave the decisive proof. He was suggesting that this is an Mstar MST7336. The logo looks good but the pin count did not match (100 vs 64)… Read More »
As you might have read I recently started to document the assembly of Benjamin Vedders insane 12S 50A (240A peak) motor controller called VESC. This is the third post in this series. In the previous VESC article I showed you how to cut a stencil for solder paste application on your own. This time I… Read More »
There have been a lot of rumors and discussion about the $99 Eachine EV100 FPV goggles recently. I already did some teardown and component analysis in my previous posts. The internet forums are full of people complaining about the small FOV and the missing or “not real” diversity feature. The small FOV can be checked… Read More »