Chip Select Pins

Following pins can be used as chip select pin on Arduino^® and ESP 32 boards

Arduino Board	Chip Select Pins
Arduino Uno	All the digital and analog pins
Arduino Due	All the digital and analog pins
Arduino Mega 2560	All the digital and analog pins
Arduino Leonardo	All the digital and analog pins
Arduino Mega ADK	All the digital and analog pins
Arduino Micro	All the digital and analog pins
Arduino MKR1000	All the digital and analog pins
Arduino MKR WiFi1010	All the digital and analog pins
Arduino MKR Zero	All the digital and analog pins
Arduino Nano 3.1	All the digital pins and A0-A5 analog pins
Arduino Nano 33 IoT	All the digital and analog pins
Arduino Pro Mini	All the digital pins and A0-A5 analog pins
Arduino Nano 33 BLE	All the digital and analog pins
Arduino Nano 33 BLE SENSE	All the digital and analog pins
ESP32-DevKitV1	All the digital pins except D34, D35, D36, and D39
ESP32-DevKitC	All the digital pins except D34, D35, D36, and D39