Hi, Once I have tested correctly that for example both XEP_example.py and XEP_plot_record_playback.py works OK, I want to connect only the radar with another MCUs rather than with Atmel, via SPI. Modifying a bit XEP_example.py, I have an output like the log file attached: 1. What is the dispatching packet? I have already another MCU board with an available SPI port , and I just want to replicate the config done on XEP_example.py in order to get data from radar, the same as: On my system, I attached you a picture from the oscilloscope, where you could see the SPI signals (CLK, MISO, MOSI and CS respectively), where after sending correctly on the MOSI port, with the CLK signal right the same data as in the XEP_example.py->ping command, nothing happens on the MISO port, no answer from Xethru radar. CS is on low level to select the radar chip and begin SPI communication. We are using SPI frecuency around 500kHz, and we don´t know if anything else must be set before communicating at SPI low level. 2. How to get answer by SPI from the radar chip? 3. How to decode the radar frame received to get distance? Kind regards, Sergi.