Tag: Radio
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How to make 868MHz or 915MHz dipole antennas for FrSky R9 or TBS Crossfire receivers
The correct length of 868/915MHz antennas used by FrSky R9 and TBS Crossfire is: From time to time FrSky has a big problem with cutting their antennas to a correct length. Good thing, you can make your own TBS Crossfire RX antennas for cheap!
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FS1000A and XY-MK-5V 433MHz RF modules: overview
One of the cheapest (but not the best) solutions for DIY wireless data transmission between different devices (Arduino and other microcontrollers) is a pair of 433MHz modules: FS1000A and XY-MK-5V. A set of them (you will need one transmitter and one receiver) costs about $1. Pretty cheap, right? Of course, there is a price to…
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PPM signal support for FS-i6 radio
FlySky FS-i6 (or branded Turnigy TGY-i6) is a very decent 6 channel entry level RC radio system. But support for PPM (CPPM) standard is somehow not clear. I have no idea why manufacturer keeps PPM support data so well hidden. Anyway, here it is: how can I enable PPM on i6 radio system? PPM signal…
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PWM, PPM, and Serial RX explained
When speaking about radio systems for remote controlled models, multirotor, airplanes, gliders, there are some shortcuts that might be unknown for beginners. Those are: PWM, PPM, Serial RX, S.Bus. Today I will explain basic concepts behind them, and when they are used. PWM PWM, as Pulse Width Modulation, is something a standard for controlling different…