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...
Today we planed to conduct as much as possible test runs before sunset so we did three successful missions. For today's test new gadget was introduced to record video from front of the boat. So i modified a key chain camera( which the battery is damaged) and fixed a 3.7V battery to power it and it was gooood. :). I gave a name to this mod as "Go puroa". Go puroa All the three test was good but due to some technical issues an unattended guys the test was bit delayed. The boat traveled around 60 - 70 meters wider way-point locations. Command center which uploads all mission way-points and manual override if any thing goes wrong (if the boat goes too from reach due to some error). Few data result of the test . Even though the sea is not calm enough the boat tries its best to with the small waves. videos will be uploaded soon once all videos are converted to up loadable format to YouTube. Conclusion: There few code fixing to be done while...