void	mpr121_default_config (void)
	Init mpr121. More...

ssize_t	mpr121_write (uint8_t regaddr, uint8_t data)
	Write a byte in the selected address. More...

ssize_t	mpr121_read (uint8_t regaddr)
	Reads a byte from selected address. More...

Detailed Description

A 12 keys keyboard can be controlled with I2C protocol

XBee keyboard MPR121 (I2C)

This API contains some functions for control a capacitive display with I2C protocol with a XBee programmable module. This display is based on MPR121 driver.

For control the Keyboard:

Function Documentation

void mpr121_default_config ( void )

Init mpr121.

Returns: nothing

ssize_t mpr121_read ( uint8_t regaddr )

Reads a byte from selected address.

Parameters

regaddr - direction for read a byte

Returns: Returns the error code on error or the value read from the selected register

ssize_t mpr121_write	(	uint8_t	regaddr,
		uint8_t	data
	)

Write a byte in the selected address.

Parameters

regaddr	- address to write
data	- data to write on selected address

Returns: nothing