I know, I was just asking if anyone had used these. They are freely available on eBay and quite cheap.The Informations you gave are not much.
I must have you mixed up with another agraham, who seemed to have done everything.✌I'm new to this
Has anybody used these cheap trackers that are all over eBay, in particular in sounding their alarm from a B4A app?
Many thanks. That's exactly what I want (for a drone locator). I don't even need to write the app if nRF Connect can do itthe thing beeps (and beeps, and beeps, and... hmm, no timeout... that seems battery unfriendly)
Range might be an issue. One of my early trial applications was as a feline locator, but unfortunately those dang cats go more than 50 metres. But if you know *roughly* where the drone went down, you could use BLE to hunt it down by circling the area and listening for the advertising broadcasts, which are emitted once per second.for a drone locator
Using such Tracker on a flying Drone you´ll fast get out of reach the BT Signal....Presumably the battery in the tracker would last longer than the battery in the drone?
The idea is that you know roughly where it went down but small drones are very difficult to see in long grass or trees! and you want to avoid treading on it. So once your phone can see the tracker you activate the alarm. Also I see that nRF Connect appears to be able to graph the the RSSSI which might also help in seeing whether you are moving in the right direction.Using such Tracker on a flying Drone you´ll fast get out of reach the BT Signal
Thanks, I'll take a look at that.Here an app made in B4A:
Lol I discovered that out on the street tonight too, but it was unusable because turns out my neighbors are leaking Bluetooth all over the place. My phone nearly blew up.Also I see that nRF Connect appears to be able to graph the the RSSI
which might also help in seeing whether you are moving in the right direction.
This could be another reason for the range tonight being less than I remember it being ~one year ago.my neighbors are leaking Bluetooth all over the place
I saw that but it needs WORK to do it, the nRF Connect app seems to have everything I need already implemented so no need to reinvent the wheel for what will only be occasional (perhaps never!) use. Just waiting for the delivery of an iTag now!The B4A BLE2 library scan function returns the RSSI too, without having to connect to the device.
Nope, it's same one. After nearly 74 years I 've done most things but not everything. Still trying though!I must have you mixed up with another agraham, who seemed to have done everything.