EApiLibInitialize
Initialize function. Call this function before accessing any of the API.
int EApiLibInitialize ()
Parameters None
Return codes 0 if the initialization is a success.
Negative errno if failed.
EApiBoardGetValue
Gets the hardware monitor (current/voltage/temperature) values.
int EApiBoardGetValue (int parameter)
Parameters
The parameters could be one of the following, and the macro is self-explanatory.
● EAPI_ID_HWMON_SYSTEM_TEMP
● EAPI_ID_HWMON_VOLTAGE_VBAT
● EAPI_ID_HWMON_VOLTAGE_5VSB
● EAPI_SEMA_ID_BOARD_MAIN_CURRENT
● EAPI_SEMA_ID_HWMON_VOLTAGE_VIN
Return codes 0 if the initialization is a success.
Negative errno if failed.
EApiUnInitialize
Un-initialize function. Call this function before exiting the application.
Humidity and temperature sensor setup
Prerequisites
Windows standard APIs: FromIdAsync(String), GetCurrentReading(), and GetDeviceSelector(Guid interfaceId) are used
for accessing the sensor. For details, go to https://docs.microsoft.com/en-us/uwp/api/windows.devices.sensors.custom?
view=winrt-22000.
About this task
The HDC1010 humidity and temperature sensor is connected to I2C bus 2 of the EGW-3200. This sensor is detected as a
custom sensor and follows Windows sensor framework.
Build the sample application
Prerequisites
Visual Studio 2019 is required for this task. To download and install, perform the following steps:
1. Select Workloads.
2. Open Visual Studio Installer and click Modify to customize your installation.
Setting Up the Windows 10 Operating System
33
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