5.2 Hardware Setup

The hardware development boards required for three-phase sequence detection application are connected as shown in Figure 5-2.

Figure 5-2. Hardware Setup

The AVR128DA48 Curiosity Nano board is used and it is mounted on a Curiosity Nano base for Click boards.

An SMA male cable is used to connect the waveform clicks output to the respective ZCD input and ADC channel input.

The data visualizer tool is used to demonstrate the phase sequence detection application. Graph view of the data visualizer is used to display the three-phase waveforms generated by the waveform clicks to give a visual feedback of the emulated three-phase power supply system. The custom dashboard feature of the data visualizer is used to design a dashboard specific for the three-phase sequence detection application. The dashboard shows the current RMS voltage measured by the microcontroller and fault status. It also allows users to give commands to the emulator to emulate any specific fault condition.

The USB-UART bridge interface on the Curiosity Nano board is used to communicate between the data visualizer and the AVR128DA48 microcontroller.