Physic Laboratory¶

The data can be send with USART2 to the computer. To change between the external/internal ADC (ANALOG) and the MAX circuit (DIGITAL) switch the corresponding switch on the bottom layer. The current state is shown with the LED:

• Blue for digital = MAX

• Orange for analog = External + internal

UART Settings¶

• Baudrate: 115200

• Data bits: 8

• Stop bits: 1

• Parity: N

Protocol:¶

• General: SAMPLE,<Temperature Channel I>, <Temperature Channel II>

• Information messages:

  • Current reading configuration:

    Ex: SAMPLE,LTC,INTERNAL,MAX

  • No channel enabled:

    No channel activated

  • Counter Reset:

    == RESET COUNTER ==

Switch control¶

• Left joystick switch:

  • Enable/ Disable Channel I (left).

  • Current state is displayed with the green RGB-LED (On == Channel Enabled)

• Right joystick switch:

  • Enable/ Disable Channel II (right).

  • Current state is displayed with the blue RGB-LED (On == Channel Enabled)

• Center Switch button:

  • Resets the sampling counter

  • Sends the current channel configuration

Serial Monitor¶

There are several programs available to help with this. However, we recommend the Visual Studio extension VS-Code Serial Monitor or the standalone program HTerm. Serial Monitor can be installed in the vs code explorer (open with Ctrl+P) with:

ext install ms-vscode.vscode-serial-monitor

One standalone tool mentioned for Windows and GNU/Linux is HTerm. Terminal-based emulators for GNU/Linux can also be used like screen, minicom, or putty. Feel free to use whichever you like.

In the VS-Code extension, you can add a Log File directory in the serial-monitor settings, where the received data is immediately stored in a text file. Import the file in an editor like libre-office-calc or excel and render it as a comma-separated file (csv).