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

4 vues (au cours des 30 derniers jours)
Philip Lorenz
Philip Lorenz le 27 Août 2018
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 commentaires
Philip Lorenz
Philip Lorenz le 30 Août 2018
the datasheet link: CCS811, as far as i know the 8 Bytes of data are in one Register.
Sid Jhaveri
Sid Jhaveri le 30 Août 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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Réponses (2)

AKARSH KUMAR
AKARSH KUMAR le 24 Juin 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 le 24 Jan 2021
Did you solved the Problem ?

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