TMiletusRaspberryI2C
I²C
is a standard 2 wire protocol to communicate with devices. The Raspberry Pi offers out of the box two I²C
interfaces. There is SCLK
and SDA
signal, i.e. the clock signal and the data signal that is open-collector based input / output. Communicating over I²C
works via sending first an 8bit
address and read or write bit over the SDA
signal and then either write or read data bits. Below is a list of available properties, methods and events for TMiletusRaspberryI2C
.
Properties for TMiletusRaspberryI2C
Property |
Description |
I2CAddress: Integer |
Address of the I²C device |
Methods for TMiletusRaspberryI2C
Method |
Description |
Open |
Open the connection |
Close |
Close the connection |
WriteByte(AAddress: Byte; AData: Byte) |
Write a byte to a register address |
WriteByteP(AAddress: Byte; AData: Byte): TJSPromise |
Promise based equivalent of WriteByte |
WriteAddress(AAddress: Byte) |
|
WriteAddressP(AAddress: Byte): TJSPromise |
Promise based equivalend of WriteAddress |
WriteBuffer(ABytes: array of Byte; ASize: Integer) |
Write a buffer of data to a register address |
WriteBufferP(ABytes: array of Byte; ASize: Integer) |
Promise based equivalent of WriteBuffer |
ReadByte(AAddress: Byte): TJSPromise |
Read a byte from a given register address |
ReadSmallInt(AAddress: Byte): TJSPromise |
Read a SmallInt from a given register address |
ReadBuffer(AAddress: Byte; ASize: Integer) |
Read a buffer of data from a given register address |
Events for TMiletusRaspberryI2C
Event |
Description |
OnOpen |
Event triggered when the connection is opened |
OnClose |
Event triggered when the connection is closed |