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Reviews (12)
07 Dec, 2017
9" Carbon Self Tightening Props for DJI F550 Hex
Having bought a second hand F550 recently with poor, very flexible DJI Phantom styled props I was on the lookout for some replacements to improve the handling and flying efficiency of the new drone. I was a little wary of cheap carbon props as the last ones I had bought for my FC40 were badly balanced, not too durable (prop center fell apart after 5 flights) and very noisy on the drone. Still. Needs must and, short of cash and needing some new props I plumped for these. I was pleasantly surprised at how well they were balanced and equally pleased with performance on the F550.
In fairly gusty conditions I fired up the F550 for some tentative flight tests having recently also replaced the aging APM flight controller with a Pixhawk model. For starters the props were significantly less noisy than my previous ones. There was little or no flex in the props as the craft lifted off. Hover and flight was steady and controllable. The old props I was replacing could be seen to flex and wobble as the motors throttled up and down to stabilize flight. No such evidence here. I performed a couple of RTL switches to test out that part of the flight control system and the craft performed two flawless maneuvers to the control height and steady descents and gentle landings despite the varying cross-winds. Full marks for new flight controller and props.
19 Dec, 2019
An easy and cost effective route to upcycling old laptop LCD panels
Following a poor experience with a generic lcd panel controller (my fault not the vendors), I went for a dedicated LCD controlelr matching the serial No. of the panel to this controller. Despite there being zero documentation this has been easy to set up. I carefully plugged the supplied LVDS cable to the panel and connected up the supplied inverter board and plugged in the required 12V 4Amp PSU. Initially I was a little concerned that the panel switched itself off after 5 seconds every time I plugged it in with only a Chinese message on the screen. It turned out (eventually) to be the "No Signal" message. I persevered and connected a Raspberry Pi via HDMI to the controller board and hey presto the LCD panel fired up perfectly to the Raspberry Pi startup screen.
Obviously the picture quality will depend on the quality of your LCD panel, but mine was crisp and clear and required no configiration whatsoever. I did some online investigation as to how to change the default menu language to English and found a 20 second Youtube clip which vaguely showed how to do it. In the end I guessed on the setup menu and luckily found the language section first go. After that all the menu items and the on-screen messages from the controller were in English even after powering off which is handy. If you have any old LCD panels from dead laptops then this is a great way to upcycle.
23 Jun, 2018
Tremendously useful 3 axis gimbal control device at a good price.
Bought this as a manual control device for a 3 axis hand held camera gimbal. Plugs straight into the HakRC (Storm32) 3 axis gimbal with colour coded wire sleeves that match the Olliw instructions for the job which is a nice touch and made things a lot easier. You get a decent length of good quality ribbon cable (although I'm planning to extend this to 5m for a boom operated design I'm working on). After enabling the joystik in the Storm32 GUI I have control of PITCH and YAW which operates really smoothly in relative or absolute modes. A useful feature is a BUTTON operation (push the joystick in) which allows PAN mode changes or a "return to center" operation. This sturdy little (30mm x 30mm) joystick is compact in design with 2 methods of attachment. 4 x 4mm(?) holes for mounting in a case (I'm intending to 3D print a case for this), but also a useful couple of slots to allow a strap to be fitted which could make it great as an elasticated or velcro hand mount for control whilst engaged in sporting activities or drone flying. Definitely going to get a lot of use out of this. Good price too.