# How to get the multiple SPI CS

**URL:** <https://forum.arduino.cc/t/how-to-get-the-multiple-spi-cs/1216850>\
**Category:** Networking, Protocols, and Devices\
**Created:** [January 28, 2024, 7:49am UTC](https://forum.arduino.cc/t/how-to-get-the-multiple-spi-cs/1216850 "2024-01-28T07:49:16Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![iryna7](https://avatars.discourse-cdn.com/v4/letter/i/ec9cab/32.png) [@iryna7](https://forum.arduino.cc/u/iryna7)\
**Post date:** [January 28, 2024, 7:49am UTC](https://forum.arduino.cc/t/how-to-get-the-multiple-spi-cs/1216850/1 "2024-01-28T07:49:16Z")

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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](https://europe1.discourse-cdn.com/arduino/original/4X/e/f/2/ef2f435f99ee08178bdadd7408121aac333ac649.png)

```arduino
#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

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**Author:** ![UKHeliBob](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/ukhelibob/32/215663_2.png) [@UKHeliBob](https://forum.arduino.cc/u/UKHeliBob)\
**Post date:** [January 28, 2024, 7:52am UTC](https://forum.arduino.cc/t/how-to-get-the-multiple-spi-cs/1216850/2 "2024-01-28T07:52:41Z")

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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 ?

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<div class="post-metadata">

**Author:** ![iryna7](https://avatars.discourse-cdn.com/v4/letter/i/ec9cab/32.png) [@iryna7](https://forum.arduino.cc/u/iryna7)\
**Post date:** [January 28, 2024, 8:03am UTC](https://forum.arduino.cc/t/how-to-get-the-multiple-spi-cs/1216850/3 "2024-01-28T08:03:22Z")

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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 ?

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**Author:** ![UKHeliBob](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/ukhelibob/32/215663_2.png) [@UKHeliBob](https://forum.arduino.cc/u/UKHeliBob)\
**Post date:** [January 28, 2024, 8:05am UTC](https://forum.arduino.cc/t/how-to-get-the-multiple-spi-cs/1216850/4 "2024-01-28T08:05:22Z")

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

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<div class="post-metadata">

**Author:** ![iryna7](https://avatars.discourse-cdn.com/v4/letter/i/ec9cab/32.png) [@iryna7](https://forum.arduino.cc/u/iryna7)\
**Post date:** [January 28, 2024, 8:15am UTC](https://forum.arduino.cc/t/how-to-get-the-multiple-spi-cs/1216850/5 "2024-01-28T08:15:19Z")

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

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**Author:** ![system](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/system/32/1140315_2.png) [@system](https://forum.arduino.cc/u/system)\
**Post date:** [July 26, 2024, 8:15am UTC](https://forum.arduino.cc/t/how-to-get-the-multiple-spi-cs/1216850/6 "2024-07-26T08:15:21Z")

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Closed on July 26, 2024, 8:15am UTC

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