Here’s a really tiny r/c blimp that doesn’t need several cubic feet of Helium to get off the ground. Instructables user [masynmachien] has been building r/c blimps for over a decade now ...

So why might what is essentially a toy aircraft ... beneath the helium bag. Her controllers are simple enough 3D-printed joystick housings, with another ESP8266 within. The blimp ESP8266 forms ...