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3D printed racing drone, part 2
My 3D printed racing drone is done. More or less. I was able to finish it a few weeks ago and even perform a maiden flight. It survived the experience, but I also discovered few problems I will have to solve before officially calling this project a success. First of all, the decision about hard…
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Crossbow LRS: ready for next tests
Looks like I was able to solve all major known problems with my DIY long range radio system Crossbow. I'm writing known, since no idea what lies beneath… Anyhow… What changed? Quite a lot: I've extended Arduino-LoRa library with ability to transfer full packet in single SPI transaction. Right now, each read of write to…
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The most popular flight controller for INAV – Q4 2017
It's been a few month since, for the last time, I presented to you the most popular flight controllers used together with INAV firmware. So, as you can suspect, it is time for the next one. This time, I've looked into last 3 months of the year 2017: October, November, and December. Important, this is…
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How to wind an electric brushless outrunner motor with dLRK winding schema, part 2
My memory is not as good as it used to be. I just realized, that third part of my motor winding series was not yet announced over here. So here we go… In this video I terminate motor into Delta pattern and do first test of freshly winded motor.
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LoRa versus FSK modulation signal spectrum
LoRa modulation is a wireless communication technique designed for long-range, low-power data transmission. It is based on Chirp Spread Spectrum (CSS) modulation, which spreads the signal over a wide frequency range, making it robust against interference and noise. This technology is particularly useful for Internet of Things (IoT) applications, where devices need to communicate over…
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Crossbow LRS: first live test that is almost a success
Finally, much later than I originally expected, Crossbow LRS, my DIY medium range RC radio link was used to control something that flies. Not much, and not far. It was only my experimental 6″ GPS Racer quadcopter. And I reached only 350m. Small steps, I had no intention to beat and records after all. Just…
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CC1101 868MHz Wireless Transciever Pinout
CC1101 is another example of modern radio modules. I might not have the receiver sensitivity or LoRa SX1276, but with proper antennas should give more than 1 km of radio transmission. Recently I got a couple of them, so expect some new projects with CC1101 and Arduino. Now, something that took me some time to…
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RaceFlight One GPL violation drama, there might be more of that
Previous parts of this cycle are available here and here. Betaflight community has a grudge against RaceFlight. And they have a reason. Two potential, or maybe I should say confirmed, GPL violations in one year is fully enough. That just does not looks good no matter how you look at it. This whole situation stinks.…
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Standalone Betaflight Configurator, since Chrome Web Store apps are dead
Google finally did what they announced last year: Chrome Packaged Apps for Windows, Mac, and Linux are dead. OK, maybe not 100% dead, but they were removed from search and browse in Chrome Web Store. If you still have link, you can install (no idea for how long tho). So, how to live with that?…