Brushed Blue Budget - 1S Whoop

By Werdna FPV on Sep 03, 2019

7  395  0

This is by no means a professional tiny whoop video, I'm fighting gusty winds and the tune is pretty bad, so watch at your own risk :D

How cheap can you build a tiny whoop for?

I set out to build a very cheap brushed whoop (this is in fact my FIRST self built whoop!) to see if I could get it flying as well as my UK65 Pro. The criterion were simple - Betaflight OSD, solid pin connectors to reduce voltage sag, and a decent flight time. Had an 0716 frame lying around so I just decided to use that, and got a simple 10 degree TPU canopy printed off Thingiverse, link below. I flashed the latest non 4.0 version of Betaflight (3.5.7) and it flies just OKAY indoors on the Project Mockingbird brushed PIDS. Once the wind starts blowing it's screwed.

The importance of solid-pin PH2.0.

I cannot emphasise this enough. I literally destroyed six BetaFPV 300mah flying hard with those stupid hollow pins that get so hot. That, together with HV charging, are surefire ways to murder 1S LiPos. It probably makes sense to only HV charge when you fly in a tiny whoop race. Otherwise, 4.2V should do just fine for me. These pins get me more than 30 seconds more flight time anyway, and you can see the voltage hovers around 3.4V for most of the flight instead of straightaway just dying at 3.1V.

The final price

The frame was free. I got $6 of coupons that aren't listed below so the final price shipping included ended up being 46USD. I'd say that's a pretty good price! :D



Sign in to comment

Guides & Reviews

39 3,951  46
May 05, 2020

This guide will walk you through the process of building your first FPV quad. The goal with this design was to build a low-cost, lightweight quad, yet powerful enough to safely carry a GoPro in close proximity areas. I chose these parts to minimize the amount of soldering at no cost to the quality. A typical build requires around 30 solders while this only needs 25. It's not a huge difference, but..

Read more
28 7,767  38
Nov 30, 2019

In late 2019 DJI made inroads into the FPV scene with their remarkable low-latency digital system. It gave us a 720p video feed with latency on-par with the status quo, analog video. Traditionally we've used analog video systems for low-latency video, but the video quality is far from ideal. It's a trade-off we've been willing to accept for the control. Now we've got the best of both worlds and what..

Read more