Mark-sj

Thank you for replying! I tried ``` void setup() { // put your setup code here, to run once: Serial.println("setup"); Serial.begin(115200); master.setDataMode(SPI_MODE0); master.setFrequency(500000); master.setMaxTransferSize(BUFFER_SIZE); master.setQueueSize(1); // default: 1 master.begin(HSPI, OSPI_SCK,...