I’ve never used this device myself, but couple things i notice here.. SPI usually requires more wires.

The main signals are

• MISO - Master In Slave Out
• MOSI - Master Out Slave In
• CLK - Clock

Optional signals will be

• CS - Cable Select
• CE - Chip Enable

And occasionally you will have
*INT - interups

As far as i know the Linux driver will not operate CS or CE themselves. You usually will need to use
Circuits.GPIO to toggle these. You will probably want to use spidev0.0, but it depends on the bus you used. If you are on Raspberry pi, the 0.0 bus is the top one. You will also want to look at your data sheet to see how to use CS or CE. (It looks like you have CS). CS needs to be set high or low for a SPI device to know that it is it’s turn to use the bus. if you have a CE, it tells the chip to be on or off. You will need to look at the datasheet to tell for sure. You also need to get another data line for MOSI (master out, slave in) this is the wire that will be transmitting data TO the device from Nerves

Just replying to say that I was able to use 2 sensors without issue, using the same method, with the second sensors CS pin connected to SPI_CS1. It seems like the Circuits.SPI library handles the CS/CE switching.

Thanks for posting this! I’m still trying to wrap my head around how to talk over an SPI interface and found it helpful to read through your posts