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Betaflight 4.2 – new features and most important changes
It’s been a while since we had the last release of Betalight. After all, Betaflight 4.1 was released in October 2019. Half a year ago. Luckily, developers were not hibernating over the winter, and brand new, 4.2, release is scheduled for May 2020. Slightly more than 2 weeks from now. Below is the list of…
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The best RC radio transmitters for Q2 2020
The last year was a good year in terms of new radio transmitters. It’s no longer a choice between FlySky and FrSky. We have new players and new products. Below is my, very subjective, overview of the most interesting radios on the market. Still the best – FrSky X10S Horus In my very personal opinion,…
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Corsair K63 Wireless Mechanical Keyboard – Pros, Cons & Verdict
I spend up to 12 hours daily in front of a personal computer. I am a professional software developer, open-source developer, YouTube creator and I run a couple of smaller websites, including this one. I write. A lot. I am also a happy owner of Logitech G915 Mechanical Keyboard. It’s great but it’s also big…
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ESP8266, ESP32 and ESP32-S2 comparison
Currently, there are 2 types of MCU from Espressif on the market: ESP8266 from 2014, ESP32 from 2016 and ESP32-S2 that debuted in the second half of 2019. Although ESP32-S2 is not yet very popular, it is expected it will replace ESP8266 as a cheaper, more powerful and more secure alternative in the upcoming years.…
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All the INAV sensors: are they required or optional?
INAV can use various sensors to fly drones and airplanes: gyroscopes, accelerometer, magnetometers, barometers, GPS, OpFlow, rangefinders, and airspeed. Some of them required some are recommended and some are a purely optional piece of hardware. Here is the full list: INAV Sensors: Gyroscope and accelerometer Required. The flight controller will not boot without a gyroscope…
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Espressif ESP32-S2
When Espressif release ESP32 WiFi & Bluetooth capable MCUs back in 2016, many things changed in the DIY and tinkerers community. We finally had a cheap MCU that could do real IoT stuff and was easy to use. However, the cheap ESP32 is not really cheap in relative terms. Sure, it is cheap, but there…
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ESP8266 and ESP32 – the main differences
ESP8266 and ESP32 are the next best thing that happened to DIY world since Arduino itself. Thanks to development boards based on those MCUs brand new possibilities opened in front of all DIY and tinkering enthusiasts. With those two, not only we have cheap and powerful microcontrollers, but we can also make them talk to…
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The new Microsoft Edge is much better that I expected
I’m not shy to switch to a new web browser every few months when needed. I was one of the first users or Firefox when it was still named Firebird (yes, I’m that old). I abandoned Internet explorer without looking back. After all, it was such a bad browser.
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What is a PID controller and how it works?
The whole FPV hobby, and especially multirotor drones, work only thanks to control theory and PID controllers. They are the only thing that separates chaos and immediate flip-over from a stable flight. A regular multirotor has at least 3 PID controllers. If you enable any mode with self-leveling, the number goes to 6. Any GPS…
