Software version 1.6 (march 2023)

A few important changes:

  • MediaTransferProtocol added: The detector now can be connected to a PC/Laptop and will show up as an MTP-device. this will allow copying of files from the detector to a PC without removing the SD-card
  • Screen on during recording: the screen can now be left active (default is OFF) both during manual and automatic recording sessions. This allows for recording automatically during active use.
  • Upon switching sample rate audiobuffers are emptied so no more chance of worg sample rates in the first few seconds.
  • Deepsleep improvements: Deepsleep now will behave properly based in the start-end times of the recording period. Too keep battery-usage minimal the T41 version will switch to a lower clock speed in the deepsleep mode (both during sleep and recording). Additional status-screen information is now available when the screen is off during deepsleep, long-pressing a button will provide feedback of the status.
  • GPS improvements: The GPS module (if mounted) demands quite a bit of current during usage, in the new version you can switch the GPS on/off to get a position and still preserve battery
  • Battery-indicator: if a li-po battery-indicator is mounted this will provide better feedback of the battery-status.


It is wise to start the detector in default settings (pres left button at power-on) after updating to a new software version.

Be careful, Teensy 3.6 and 4.1 use their own version software. If you accidental load the wrong software you can not load the right software unless you press the reset button on the Teensy! The software "teensy_reboot" will not work. This involves opening the detector, remove the display and press the small switch on the Teensy at the moment you would have normally used teensy_reset.exe

The hex files are different for Teensy 3.6 and Teensy 4.1 pick the right file. (Hardware options are automatically detected)

The update tools (below) only hold the uploader-tools, use the link above to get the software.

Update Tools
Archive – 4,1 MB 927 downloads


Instructions for Windows XP and higher.


Download the update tools and software hex file from the links above and unzip the update tools. 

Teensy serial driver is only needed for windows versions before Windows10. On older systems first install the serial driver (from the update tools zip-file).
Simply run serial_install.exe on older windows versions by double click and follow the instructions (Yes OK Next, whatever)

Now, plug-in the Teensy micro USB (right side of the detector) and connect to your computer, the computer will find a new device (Teensy Serial). Finish the installation of the driver by clicking Next, OK, Yes or whatever button comes up.
Next run Teensy.exe

Select File and choose the xxxxxxxxx.hex file (please be ware of Teensy 3.6, 4.1 PSRAM and NOPSRAM difference) 

Click the dark green button so it lights up and you can read "Auto" (might work without auto)

now run reboot.exe (if you can reach the small switch on the Teensy you can press that instead)

The Teensy should reboot load the software and start up again. This should only take seconds.

STEP 8 Disconnect the USB connector and use the TeensyBat detector.

There is a small chance the reboot will make the computer find an other USB HID driver and the upload will abort.
Simply try again, I am sure it will work the next time.

If your detector has any problem try a “factory reset” first by holding the left button and turn on the detector. Release the button as soon as “Resetting to defaults” appears.