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

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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?
  3 Kommentare
Philip Lorenz
Philip Lorenz am 30 Aug. 2018
the datasheet link: CCS811, as far as i know the 8 Bytes of data are in one Register.
Sid Jhaveri
Sid Jhaveri am 30 Aug. 2018
The read function has numBytes as input argument. That might help you in reading more than 1 bytes from Arduino.

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Antworten (2)

AKARSH KUMAR
AKARSH KUMAR am 24 Jun. 2020
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 am 24 Jan. 2021
Did you solved the Problem ?

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