How can you safely write a list of bytes [0x01, 0x02, 0x03] starting at register 0x10 to a device at address 0x70 using smbus2?

hard🚀 Application Q9 of 15

Raspberry Pi - I2C Communication

How can you safely write a list of bytes [0x01, 0x02, 0x03] starting at register 0x10 to a device at address 0x70 using smbus2?

Abus.write_block(0x70, 0x10, [0x01, 0x02, 0x03])

Bbus.write_byte_data(0x70, 0x10, [0x01, 0x02, 0x03])

Cbus.write_bytes(0x70, 0x10, [0x01, 0x02, 0x03])

Dbus.write_i2c_block_data(0x70, 0x10, [0x01, 0x02, 0x03])

Step-by-Step Solution

Solution:

Step 1: Identify method for writing multiple bytes
write_i2c_block_data(address, register, data_list) writes a block of bytes starting at the register.
Step 2: Confirm correct usage
bus.write_i2c_block_data(0x70, 0x10, [0x01, 0x02, 0x03]) correctly uses this method with address, register, and list of bytes.
Final Answer:
bus.write_i2c_block_data(0x70, 0x10, [0x01, 0x02, 0x03]) -> Option D
Quick Check:
Use write_i2c_block_data to write multiple bytes [OK]

Quick Trick: Use write_i2c_block_data to write lists of bytes [OK]

Common Mistakes:

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