It Started With a Hardware Limitation I have been using Quectel GNSS modules in my designs for a while. They are reliable, well-documented, and the support ecosystem is solid. But the module I had been using had one problem that I kept running into: no external antenna support . For most projects that is a minor inconvenience. For a marine vessel monitoring and control system , it is a non-starter. A vessel hull blocks sky view, antenna placement is critical, and the difference between a clean fix and no fix at all often comes down to whether you can mount the antenna where it actually has line of sight. An integrated antenna in a sealed enclosure below deck simply does not cut it. So I went directly to Quectel. The Conversation With Quectel I reached out through their official sample request channel. I was not expecting much — most component manufacturers have a standard process: fill out a form, wait, get a few uni...
I have interface the Hobbyking HK-TR6A V2 a six channel receiver to my chipkit uC32 (Arduino equivalent to UNO). Actually this came up to mind when manual override was needed for a project currently i am working on. In this video i have just monitoring the wave forms which receiver outputs.
Once i done testing i will upload more information and videos. I am planing to make a prototype soon. ;)
Readings measured
Waveform of the PWM
Comments