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RS-485 / Modbus Shield for Raspberry Pi

110 €110.00

Availability: In stock

The RS-485 / Modbus Shield allows the user to perform industrial and domotic applications where automation is needed.

This kit includes the products listed below.

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Description

RS-485 is the most versatile communication standard. The RS-485 standard defines the electrical characteristics of drivers and receivers for use in digital systems. The standard is published by the Telecommunications Industry Association/Electronic Industries Alliance (TIA/EIA). RS-485 signals are used in a wide range of computer and automation systems and are used in programmable logic controllers and on factory floors. Since it is differential, it resists electromagnetic interference from motors and welding equipment. It may be used to control video surveillance systems or to interconnect security control panels and devices such as access control card readers. It does not specify or recommend any communications protocol. In the next table the electrical characteristics of the standard are defined.

The RS-485 module for Arduino and Raspberry allows users to perform industrial and domotic applications. The RS-485 is the most versatile communication standard in the standard. This a standard defining the electrical characteristics of drivers and receivers for use in digital systems. It does not specify or recommend any communications protocol. In the next table the electrical characteristics of the standart are defined.

This kit includes:
- RS-485 / Modbus Module for Arduino, Raspberry Pi and Intel Galileo
- Raspberry Pi to Arduino Shields Connection Bridge

RS-485
Standard EIA RS-485
Physical Media Twisted pair
Network Topology Point-to-point, Multi-dropped, Multi-point
Maximum Devices 32 drivers or receivers
Voltage Levels -7V to +12V
Mark(1) Positive Voltages (B-A > +200mV)
Space(0) Negative voltages (B-A < -200mV)
Available Signals Tx+/Rx+, Tx-/Rx-(Half Duplex)Tx+,Tx-,Rx+,Rx-(Full Duplex)

Note: Raspberry Pi not included. You can take a look on the new Starter Kits for Raspberry Pi, or buy it separately.

Related Tutorials

The RS-485 module for Arduino and Raspberry allows users to perform industrial and domotic applications. The RS-485 is the most versatile communication standard in the standard

This a standard defining the electrical characteristics of drivers and receivers for use in digital systems. It does not specify or recommend any communications protocol. In the next table the electrical characteristics of the standart are defined.

Modbus allows communication between many devices connected to the same network, for example a system that measures temperature and humidity and communicates the results to a computer

Many of the data types are named from its use in driving relays: a single-bit physical output is called a coil, and a single-bit physical input is called a discrete input or a contact.

The idea behind the Raspberry Pi to Arduino shields connection bridge is to allow to use any of the shields, boards and modules designed for Arduino in Raspberry Pi.

It includes also the possibility of connecting digital and analog sensors, using the same pinout of Arduino but with the power and capabilities of Raspberry.

If you are interested in Internet of Things (IoT) or M2M projects check our open source sensor platform Waspmote which counts with more than 100 sensors available to use 'off the shelf', a complete API with hundreds of ready to use codes and a low consumption mode of just 0.7µA to ensure years of battery life.

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