Complete working unit 2
Yes, this one is finished.
I usually do not sell finished detectors but need some funds, and do not need this specific detector any more.
This one has a prototype PCB, I did not develop this version further. It is a Teensy4.1 version with extra memory sonit has al pre-recording buffer.
It also had an external microphone jackplug. Placing an external microphone switches off the internal microphone.
It has a GPS receiver and temperature sensor.
It does not come with charger (std micro USB) also no headphones and no micro SD (SDHC class 10, 32GB or less) memorycard.