Category Archives: Tutorials

A sub-250g copter in 3″ or 4″ — not the 40g pepperFIISH you are used to ;) [english]

[hier geht’s zur deutschen Version des Artikels] This is a blog post from Holger, another copter fanatic from my hometown Bielefeld 🙂 Thank you very much for giving the permission to share this build log with my readers. The original article was written in German, if you find any spelling/grammar bugs in this translation please… Read More »

Der sub-250g copter in 3″ oder 4″ — mal kein 40g pepperFIISH ;) [deutsch]

[click here for the english translation] Dieser Artikel ist ein Gast-Post von Holger, eines weiteren Copter-verrĂĽckten aus Bielefeld wie ich 🙂 Vielen Dank fĂĽr die Erlaubnis diesen Beitrag mit meinen Lesern teilen zu dĂĽrfen! Nun also viel SpaĂź beim lesen seines Artikels: … und es geht ganz leicht… Der sub 250g Copter Im Internet sprangen… Read More »

Eachine EV100: no audio problem — cause, fix, and technical background — UPDATE

Some days ago I published a post on how to fix the totally broken audio on the $99 Eachine EV100 FPV goggles. As it turned out the inbuilt receiver module, a Sinopine SP338RX, is missing “some” components that generate the audio output. Some people are lucky as their modules are only missing the 6.5MHz filter.… Read More »

Eachine EV100: no audio problem — cause, fix, and technical background

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, analyzed the “diversity” feature of the receiver, and wrote about how to fix the gray bar problem in my previous posts. There is another problem with those goggles: No… Read More »

Eachine EV100: gray bar & distorted image problem — cause, fix, and technical background

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 »

Pagoda 3/3B antenna — 60 sets + Assembly jig on one PCB panel – fishpepper edition

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 »