Category Archives: Mod

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 »

Not all motors spinning on full battery with F3D8 + Star 4 ESC — Fix it!

As you all might know racerstar cloned my opensource tinyFISH FC and tinyPEPPER 4in1 ESC, claiming it is their very own invention. Sadly they messed things up… There are lots of reports of not all motors spinning when you arm the FC with a fully charged Lipo battery. The symptoms fade away once your battery… Read More »

SkyRC quattro mini / Hitec X4 – TinyWhoop battery connector mod

I recently bought a SkyRC quattro / Hitec X4 charger for my TinyWhoop and pepperF1SH batteries. Unfortunately this charger does not have the 1.25mm molex picoblade connector you find on the standard picoblade connector used on the TinyWhoop batteries. The MX connector is a close fit, but having a different spacing (1.5mm VS 1.25mm) damages… Read More »