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Tag Archives: FPV

Betaflight New Filter!

Starting with Betaflight (BF) 3.3.x there is a new filter introduced by BF developers that promises significant difference in flying characteristics of a quad. Unfortunately, to use it is not as simple as clicking a button. There are few steps that needs to be done to enable this new filter:

Before we go through all the steps required, below are the checklists if you have proper Flight Controller (FC) or not:

  1. at least FC with STM32F3 chip (F4 is recommended).
  2. please note type of gyro chip used on the FC.

Although the hype currently is regarding the use of Kalman Filter in flight controllers for smooth flight, the disadvantage using Fast Kalman Filter (FKF) is that it requires a minimum of STM32F4 chip on the FC.

BF developers came up with alternative optimized filtering method which uses less computing load on the flight controllers and not much juicy difference compared with FKF implementation. This means that Betaflight enables up more Flight Controllers that can utilized this new filter.

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How-to-LUMBAF3

This blog post is dedicated to explain all the necessities regarding setting up LUMBAF3 flight controller. This include instructions on how to get into DFU mode, how to flash Betaflight firmware, LUMBAF3 specifications, LUMBAF3 supported functions and its wiring diagram.

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How to add VBatt Telemetry for iA6B Receiver with Turnigy Evolution

Turnigy Evolution is one of the affordable low-cost RC transmitter option with a good build quality. It is sold with a receiver and comes with a simple cover that protects the front of the controllers along with the gimbals. The small size of the transmitter makes it really easy to fit in any bag packs.

While other superior transmitters such as the widely used Taranis X9D Plus have more functions and switches, the Turnigy Evolution stood strong to those who favors a transmitter approach with just-enough functions for FPV drone fliers. The remote is also unique where it is ergonomically designed for a very comfortable hold in the hands and is a no-brainer pick to those coming from especially gamers or a thumber. Its small size and the close proximity between gimbals gives a thumber easy and comfortable access for full throttle all the way full stick movements in all directions. This however proves to be a disadvantage to those who favor pinching as it provides them limited room for finger movements.

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Improving BeeRotor’s HoneyDrop Antenna

BeeRotor’s HoneyDrop antenna is based on open-source Pagoda antenna (thanks Maarten Baert) and the Pagoda antenna has received good reviews regarding their performance.

The Pagoda antenna is an omnidirectional circularly polarized antenna. It has good axial ratio resulting in an impressive multi-path performance where it will shine if used at places with a lot of obstacles. The Pagoda antenna excels in rejecting reflected waves.

So if the Pagoda design is so good, why is the HoneyDrop antenna so bad? They are based on the same open-source Pagoda design by Maarten Baert, so did he hide some secret sauce? Did you sir? ;p

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What gyro is on my SP Racing F3?

The answer should be MPU-6050 isnt it? … yeah but i’m sorry thats not the gyro that is on my SP Racing F3.

Flight Controllers (FC) are one of the easiest quadcopter part to be repaired but i had this one SP Racing F3 that shows weird symptoms. My noob troubleshooting skills are insufficient to solve this mystery of the world. My multimeter has run out of places to probe on the FC, there were no shorts, no missing or burnt components, supply voltage was good but FC just keeps blinking the red LED and it wont communicate with the PC. My brain though had an idea, but it requires a component that i dont have, so the FC was tuck away justttt beside the trash bin with a final warning… you are one step away to be thrown in the trash Mr. FC.

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