Questions tagged [electronics]

For questions regarding the electronic components on a drone. For questions about how to wire them together, use [wiring]

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7
votes
1answer
795 views

Can a receiver get damaged if you power it up without an antenna?

My r-xsr receiver short circuited after a crash recently. When investigating the reason, I found two things; The filtering capacitor had come loose, as well as one of the antennae on the r-xsr. Since ...
3
votes
1answer
69 views

Serial Communication Not working in APM 2.8

I have being trying to establish Serial Communication connection between APM 2.8 and Raspberry Pi Board. But the connection is not being recognized in the Raspberry Terminal Console. Configuration ...
8
votes
2answers
239 views

How to prevent a 5V supply from sagging to 4.6V when the FPV camera is on?

I have issues with my FPV camera. My camera is a RunCam split 2S (concept is similar to Caddx turtle). This camera turns off almost instantly after I have plugged in my battery. When I probe the ...
5
votes
1answer
45 views

Quality of transmitted image and electrical problems

There is a question already regarding a flickering OSD, but I wonder how other image quality problems relate to electrical problems. What's the first thing one has to look for when the transmitted ...
10
votes
3answers
96 views

How do you build and use a smoke stopper?

What is the right way to build and use a "smoke stopper" device to prevent a short or other improper wiring from damaging your electronics? Is it different depending on what voltage you are using?
8
votes
3answers
69 views

How do you waterproof your electronics?

I fly FPV drones a lot in the winter where it is wet and snowy. What is the best way to protect your equipment from shorting out from water?
7
votes
2answers
84 views

What are the usual engineering considerations for a UAV current sensor?

Current sensors are a popular feature in both multicopter and fixed wing flight control stacks. Most of them are analog, i.e. convert the current into a voltage using a small-value shunt resistor (...