Which is the best communication protocol for microcontrollers?
However it has to be at a standard frequency << (frequency_client, frequency_server) to be able to detect all bits. Only need one cable per client MCU. RS-232: I think this is by far the most commonly used communication protocol, but I don’t know how well it scales.
What kind of communication protocol does a chipset use?
SPI (Serial Peripheral Interface) is a common communication protocol used by many different chipsets. Devices which communicate via SPI are in a master/slave relationship.
What’s the difference between a bus and a wire?
“In computer architecture, a bus (from the Latin omnibus, meaning “for all”) is a communication system that transfers data between components inside a computer, or between computers. This expression covers all related hardware components (wire, optical fiber, etc.) and software, including communication protocol.”.
How to use multiple wires for data integrity?
For data integrity the message can include a length and a CRC field. CRC_INIT and CRC_POLY are arbitrary values that are used to compute the CRC. RS-485 using multiple wires could work well here, if there’s a possibility to wire the same line to all devices.
How often do microcontrollers communicate with each other?
The communication will not happen more than once every few minutes for most of the devices and on demand for others. The speed is not very critical (message is short): 1 Mbit/s I think is WAY overkill for my purposes. The MCUs I plan on using are the following.
Which is an example of a microcontroller device?
For example, the Arduino is a microcontroller. The Raspberry Pi and BeagleBone Black are embedded processors, and phones, tablets, and laptops are multi-processor devices running a central processor. Microcontroller Development Boards and Activity Boards A processor, whether microcontroller or multimedia processor, can’t operate alone.
What can an 8 bit microcontroller be used for?
8-bit microcontrollers should typically be considered for applications that are dedicated to just doing one job, with a limited user interface and little data processing. 8-bit microcontrollers come in all sizes from small 6-pin devices to chips with 64 pins.