Radio Receive

Receive data from micro:bit devices via radio

• 

Libraries:
Simulink Coder Support Package for BBC micro:bit/Radio

Description

The Radio Receive block receives data from other micro:bit devices through a wireless connection.

Limitations

• You can use only one Radio Receive block in a model.

• The block can accept a maximum of 254 bytes in one sample time.

Ports

Output

Data — Received data

vector

At each sample time, the port outputs received data as an N-by-1 array of the type specified in the Data type parameter and size specified in the Data length (N) parameter.

Status — Status of received data

scalar

The status port outputs one of these values:

• 1—Data is received.

• 0—No data is received.

• –1—Data is corrupted during reception.

Parameters

Channel number (1–100) — Channel selected to receive data

1 (default) | any integer from 1 to 100, inclusive

The channel number at which you want to receive data.

Note

The transmitter and receiver must be set to the same channel number.

Data type — Type of data to be received

double (default) | string | single | int8 | uint8 | int16 | uint16 | int32 | uint32 | boolean

The type of data the block receives. The size of each element depends on its data type.

Data length (N) — Number of data units to be received

10 (default) | double | single | int8 | uint8 | int16 | uint16 | int32 | uint32 | boolean

The number of data units received at each sample time. The range of permitted units is dependent on the data type, as summarized in the table:

Data type	Range
double	1–31
single	1–63
int8	1–254
uint8	1–254
int16	1–127
uint16	1–127
int32	1–63
uint32	1–63
boolean	1–254

Sample time — Interval at which the block reads data

0.2 (default) | -1 | any nonnegative value

When you set this parameter to -1, Simulink^® determines the best sample time for the block based on the block context within the model.

Version History

Introduced in R2017b