Reading multiple bytes on a specific address of an sensor on an arduino at once

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Philip Lorenz
Philip Lorenz 2018-8-27
回答： Michael Lipp 2021-1-24
Hey, i'm working on a CCS811 gas sensor with an arduino, they are connected through a I2C bussystem. The sensor has up to 8 bytes in the register where the gas values are saved, those registers are called mailbox in the datasheet. My question is, how can i read those registers with the Arduino Toolbox? The only command i can find are readRegister and read, i can only get int8/16 or uint8/16 from them. Are there maybe any other ways how i can get those values?
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Sid Jhaveri
Sid Jhaveri 2018-8-30
The read function has numBytes as input argument. That might help you in reading more than 1 bytes from Arduino.

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回答（2 个）

AKARSH KUMAR
AKARSH KUMAR 2020-6-24
m is the arduino object
dev = device (m,'I2CAddress',startingRegisterAddress)
data = readRegister(dev, startingRegisterAddress, number of bytes you want to read continuously, 'uint8');
Michael Lipp
Michael Lipp 2021-1-24
Did you solved the Problem ?

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