ESP8266 Community Forum

Posted: **Wed Jul 10, 2019 6:23 pm**

Hi,

Is it possible to setup esp8266 spi in slave mode just to receive data? (No command or address)

Thanks.

Posted: **Fri Sep 20, 2019 3:06 am**

Yes, but afaik not using the hardware SPI interface.

It can be done quite easily in software (bit-bang interface) though, like the I2C interface.

SPI Slave Mode