3.1 Measurements

The TMAG5123EVM enables the user to evaluate the functionality of the TMAG5123 Hall-effect sensor using either a common USB-micro connector or external power supply, which must first be setup as described in Section 3.

The following test procedures are to be used for both USB and external power options.

1. Trigger the TMAG5123 device output: Slide either the north or south pole of the included D3X8 magnet along the measurement channel of the TMAG5123 Hall-effect sensor.
2. Observe the output: If using the onboard hardware, observe the indicator light D1 illuminate when the magnet gets close to the Hall-effect sensor. Alternatively, measurement can also be made through a voltage drop using an external voltage measuring device, such as an oscilloscope or digital multimeter (DMM).