Category: DIY
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How to protect ESP32 OLED display from cracking
As great as some ESP32 development boards are, they are very far from perfect and many different models can have different problems. Like, for example, ESP32 with an OLED display. If you do not handle those boards very carefully, you will destroy them in no time. The OLED screen is not protected and edges are…
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DIY motorized camera slider with ESP32 and Arduino
If you go into the video production, even as simple as short videos for YouTube, you will discover that to shoot better B-rolls and add some dynamics to usually static shots (if you do not work with a real cameraman), one could use a camera slider! You can buy one. That is always an option.…
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DIY Drone Gesture Control – DIY Motion Controller
Together with the DJI FPV Drone we, RC and FPV hobby enthusiasts, got a new accessory: DJI Motion Controller. It does a pretty obvious thing that we know for years from the Nintendo Wii controller: with this device, you get gesture control over your FPV Drone. You tilt it left, drone turns left. You tilt…
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3D printing with a polypropylene (PP) filament
3D printing does not end on PLA, PET-G, and TPU filaments. Yes, they are great and work just fine for the majority of cases. However, there are more options than just the basic filament types. Polypropylene (PP filament) is one of them. Strong, but not stiff, can be used to make hinges, enclosures, and boxes.…
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DIY 3D Printing Filament Dryer / Dehumidifier / Dry Box
The wet filament is a bad filament. 3D printers hate them since during melting the filament water that it contains turns into steam, expands and creates holes, bulges and other distortions and problems in a print. So filaments are more sensitive to moisture: TPU or Nylon. But even PLA might absorb water if it is…
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DIY 4S battery pack from 18650 Li-Ion for RC FPV drone
‘ve made me an endurance Li-Ion battery pack for my 7 inch endurance quadcopter. With good quality Sony 18650 VTC6 it is possible to get 20A constant current which is enough for an airplane or endurance quadcopter. Works just fine and with reasoable speed of 40-50 km/h I’m getting more than 15 minutes of real…
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How to solder 18650 Li-Ion batteries – video tutorial
All 18650 Li-Ion batteries are hard to solder. Well, not only 18650 but all nickel plated metal elements can be very hard to solder. But only if you do not have the proper tools. In this case, proper flux: soldering acid. Forget about sanding, scratching and other voodoo. There is a better way!
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DIY Dipole for Crossfire and FrSky R9M
Details for halfwave dipole for an 868MHz band are quite simple: two 0.8mm copper wires (used for welding) cut to 77mm and solder to the end of coax cable. Here I’ve used RG178 put that thing into a 3D printed casing put antenna tubes around wires. I got mine from here: http://bit.ly/2vHHqDk glue everything together…
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How brushless outrunner electric motors are winded
Motor winding adventure continues. In this video I show and tell about: 12 coils (12N) 14 magnets (14P) dLRK winding schema WYE and Delta termination schemas