electronics problems

So I built a Bushwacker yesterday, when I plug in my battery everything works but sometimes when I plug it in the elevator dose not move. And when it dose move the elevator jiggles (just dose a super fast little movement) randomly. I tried turning my TX on after I plugged the battery but it dose...

Hello, I don't know where to ask so please help me I have a project that is required to connect the Caddx Ant Ultra Light Global WDR With OSD Nano FPV Camera (16:9) to Laptop. So I ask for help in Caddx customer support and they suggested me to use Easycap. The Easycap's head is different from...

i just built the ft-arrow, had a lot of fun doing it, but when i went to set up my electronics i was not able to get the esc to initialize. Any idea why it would do this. Setup Spektrum Dx6i Spektrum AR400 Emax 12amp esc Emax MT1806-2280KV motor 2 E-flite 9-grams servos 800MAH 3S 20C LIPO BATTERY