985ad3d8e3
* Add and update I2C topics * Throw in some edits for the serial buffer apis * Add an example to serial read buffer
1.3 KiB
1.3 KiB
I2C Read Number
Read one number from an I2C address using a specified number format.
pins.i2cReadNumber(0, NumberFormat.Int8LE, false);
~hint
Simulator
This function needs real hardware to work with. It's not supported in the simulator.
~
Parameters
- address: the 7-bit I2C address of the device you want to read a number from.
- format: the NumberFormat of the number value to read.
- repeated: repeated start, true - don't send stop at end.
- repeated: if
true, a repeated start condition is set to help make sure the number is read from the device with out an interruption. If set tofalse(the default), the number is read without setting a start condition more than once.
Returns
- a number from the device with the NumberFormat you asked for.
Example
The following example reads a number in big-endian, 16-bit, unsigned integer
format from the 7-bit I2C address 32.
Read a number from the device at a 7-bit I2C address as a 16-bit number. The 16, big-endian, and integer chosen for the format.
pins.i2cReadNumber(32, NumberFormat.UInt16BE, false);