How can I set the SPI address for the Adafruit iMAX31865 RTD
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- bmihura
- Posts: 7
- Joined: Sun Jun 06, 2021 6:56 pm
How can I set the SPI address for the Adafruit iMAX31865 RTD
I want to connect three of these to one Arduino, but I don't see how I can set their SPI address.
- adafruit_support_carter
- Posts: 29168
- Joined: Tue Nov 29, 2016 2:45 pm
Re: How can I set the SPI address for the Adafruit iMAX31865
SPI does not uses addresses. Instead, each device needs a dedicated Chip Select (CS) pin. The CLK, SDO, and SDI pins would be shared.
The pins used for CS can just be any available GPIO pins.
The pins used for CS can just be any available GPIO pins.
- bmihura
- Posts: 7
- Joined: Sun Jun 06, 2021 6:56 pm
Re: How can I set the SPI address for the Adafruit iMAX31865
Thanks, that makes sense.
- adafruit_support_carter
- Posts: 29168
- Joined: Tue Nov 29, 2016 2:45 pm
Re: How can I set the SPI address for the Adafruit iMAX31865
Sure. No prob. I2C on the other hand does use addresses. I2C has shared clock (SCL) and data (SDA) lines. Each device on the I2C bus needs to have a unique address.
Please be positive and constructive with your questions and comments.