Contributions:FnirsiUSBLogger: Difference between revisions
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===FnirsiUSB_Current=== | ===FnirsiUSB_Current=== | ||
The USB bus current, with an offset of 2^31, and in units of 1e-5 A. | The USB bus current, with an offset of 2^31, and in units of 1e-5 A. | ||
===FnirsiUSB_Power=== | |||
The USB bus power, with an offset of 2^31, and in units of 1e-5 W. | |||
===FnirsiUSB_DataPlus, FnirsiUSB_DataMinus=== | ===FnirsiUSB_DataPlus, FnirsiUSB_DataMinus=== | ||
Voltages on the USB transmission lines, in units of 1e-3V. | Voltages on the USB transmission lines, with an offset of 2^15, and in units of 1e-3V. | ||
===FnirsiUSB_Temperature=== | ===FnirsiUSB_Temperature=== | ||
Temperature as measured by the FNB58 device, in units of 0.1°C. | Temperature as measured by the FNB58 device, with zero offset, in units of 0.1°C. | ||
[[Category:Contributions]][[Category:Extension]] | [[Category:Contributions]][[Category:Extension]] | ||
Latest revision as of 16:04, 13 May 2026
Synopsis
A logger that stores voltage, current, and temperature readings from an FNIRSI FNB58 USB Power Meter into BCI2000 states. The FNB58 is able to measure voltage and current for USB-A, USB-C and Micro USB outlets in real time. For this, it hooks into a USB connection between host and any USB device for which to measure current draw and power consumption.
Location
http://www.bci2000.org/svn/trunk/src/contrib/Extensions/FnirsiUSBLogger
Versioning
Authors
mellinger@neurotechcenter.org
Version History
- 2026/02/02: Initial public release
Source Code Revisions
- Initial development: 9245
- Known to compile under: 9247
- Broken since: --
Functional Description
The FNB58 is an USB power meter and hooks into the USB connection between the host and a target USB device. To the host, it appears as a HID USB device and can be read out without a dedicated driver, using the Windows HID library.
The logger reads out the data provided and stores them in BCI2000 event states.
Parameters
LogFnirsiUSB
This is the enabler parameter. Set it to 1 from the command line when starting the source module, or enable it in enabler list in BCI2000Launcher.
States
FnirsiUSB_Voltage
The USB bus voltage, with an offset of 2^31, and a scale of 1e-5 V.
FnirsiUSB_Current
The USB bus current, with an offset of 2^31, and in units of 1e-5 A.
FnirsiUSB_Power
The USB bus power, with an offset of 2^31, and in units of 1e-5 W.
FnirsiUSB_DataPlus, FnirsiUSB_DataMinus
Voltages on the USB transmission lines, with an offset of 2^15, and in units of 1e-3V.
FnirsiUSB_Temperature
Temperature as measured by the FNB58 device, with zero offset, in units of 0.1°C.