How to get the multiple SPI CS

Projects Networking, Protocols, and Devices
1

Hi, I'm trying to connect the multiple SPI devices(4 would be nice) on ESP32 which is connected by Slave mode with CS. but can't find 2 more CS.

spi
spi1010×541 54.2 KB

#define MOSI_PIN        13
#define MISO_PIN        12
#define SCLK_PIN        14
#define CS0_PIN          5
#define CS1_PIN          15

What i want to know more CS pin on the ESP32. any comment would be help for me. thanks in advance.

BR
iryna7

2

Welcome to the forum

Do you mean that you have run out of pins to use as CS on the fourth device or that you do not have a pin marked CS4 ?

Has the board got any pins marked CS ?

3

Thank you for your answer. It does not used all pins. I just have no idea which one would be CS2,3. Can I use any empty pins which is not assigned for CS ?

4

Yes, you can use any GPIO pin as a CS pin. Each device must, of course, have its own CS pin

5

What a GREAT answer. Thank you!! you have great day.

6

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