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Results tagged with i2c
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user 56189
I²C stands for Inter-Integrated circuit, and is a data transferation system that allows connections between computers or microcontrollers and low-level peripherals (e.g. sensors or EEPROMS). It is a multi-master, multi-slave, single-ended, serial computer bus.
4
votes
Meaning of cmd param in write_i2c_block_data
The register byte (e.g., 0 or any other byte like for instance 48) is the first byte written to the I2C bus from the Pi; it is always sent as a "write" request. … has a list of bytes in its third parameter); the Wire.onRequest callback should instead include a Wire.write() function, to write data to I2C. …
- 41
0
votes
I2C problem sending from Pi to Arduino
I'm like to understand what you meant by "cutting out"
I've found that the occasional I2C I/O error is fairly common when communicating between an Rpi and Arduino. … For example, parse the I2C byte read before sending the value to a servo so you don't drive the servo to an erroneous position on bus error. …
- 41
0
votes
How to disable I2C pins in Raspberry Pi 3 (jessie)
As long as your /boot/config.txt contains the lines:
dtparam=i2c_arm=off
dtparam=i2s=off
then you will have "normal" GPIO on those pins.
- 41