Arduino

Reference Language | Libraries | Comparison | Changes

SPI

## transfer(), transfer16()

#### Description

SPI transfer is based on a simultaneous send and receive: the received data is returned in receivedVal (or receivedVal16). In case of buffer transfers the received data is stored in the buffer in-place (the old data is replaced with the data received).

#### Syntax

receivedVal = SPI.transfer(val)
receivedVal16 = SPI.transfer16(val16)
SPI.transfer(buffer, size)

#### Parameters

val: the byte to send out over the bus
val16: the two bytes variable to send out over the bus
buffer: the array of data to be transferred

#### Returns

the received data

Reference Home

Corrections, suggestions, and new documentation should be posted to the Forum.

The text of the Arduino reference is licensed under a Creative Commons Attribution-ShareAlike 3.0 License. Code samples in the reference are released into the public domain.

### Share

### This link has expired.
Please re-subscribe to our Newsletters.

### Subscribe to our Newsletters

Email

Please enter a valid email to subscribe

Arduino Newsletter
Arduino Store Newsletter

### Confirm your email address

We need to confirm your email address.
To complete the subscription, please click the link in the email we just sent you.

Thank you for subscribing!

Arduino
via Egeo 16
Torino, 10131
Italy

###### Newsletter

- ©2015 Arduino
- Copyright Notice
- Contact us
- About us
- Careers