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Troubleshoothing INAV: magnetometer/compass is not working
A magnetometer is a sensor that measures the strength and direction of magnetic fields. In drones, magnetometers are used for navigation to determine geographical direction and allow precise position hold when stationary Your magnetometer/compass is not working with INAV? Is the sensor red in Configurator? You are not the only one… Not only most popular…
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qUark Vision F4: flight controllers designed for INAV
Things are changing in INAV world. Different manufacturers start to realize that world does not end on racing miniquads and people might be interested in other types of flight controllers. Flight controllers that were not designed with racing in mind. And today I can finally show you prototype of such flight controller: qUark F4 Vision…
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Why INAV is not arming
Few weeks ago I’ve decided to shoot more tutorial videos about INAV and this is the first effect of that decission: INAV Troubleshooting: why INAV is not arming Long story short, here is a short list: If you want to know details, here is a video with all relevant information
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Crossbow LRS: this one did not went well…
Sometimes you win, sometimes you lose. This time I’ve lost. Not by much, but always. During testing of my DIY LoRa RC link, radio caught a glitch during a flip few meters above a ground. It was not even a failsafe situation. Link recovered a few milliseconds later, but it was too late and quadcopter…
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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…