JOY-it RS485 Breakout Kit User Manual

JOY-it RS485 Breakout Kit

Specifications

• Product Name: RB-RS485
• Description: RS485 breakout kit for Raspberry Pi

GENERAL INFORMATION

Dear customer,
thank you very much for choosing our product.

• In the following, we will introduce you to what to observe while starting up and using this product.
• Should you encounter any unexpected problems during use, please do not hesitate to contact us.

CONNECTIONS OF THE RS485 BREAKOUT BOARD

1. These connections have been routed separately to the outside to ensure that the now concealed connections on your Raspberry Pi can still be used.
2. These connections are used to send and receive the RS485 signals. Both the screw terminal and the DB9 socket can be used.
3. These connections have been routed separately to the outside to ensure that the now concealed connections of your Raspberry Pi can still be used.
   Please refer to the following table.

CODE EXAMPLE

INFO: This guide was written under Raspberry Pi OS Bookworm for the Raspberry Pi 4 and 5. It has not been checked with newer operating systems or hardware.

Installing the required libraries
Firstly, you must activate the serial interface on your Raspberry Pi. To open the configuration, enter the following command:

• sudo raspi-config

Select 3 Interface Options → 15 Serial Port

• You will be asked the question Would you like a login shell to be accessible over serial? Answer this with No.
• Next, you will be asked if Would you like the serial port hardware to be enabled. Answer this with Yes.
• You will then be asked whether you want to restart your Raspberry Pi. You should answer this with Yes.

Next, you need to download the required additional libraries by executing the following commands.

• sudo apt-get install python3-serial

Once you have downloaded the libraries, you can now try out the two code examples below or download them here.
Alternatively, you can download and unzip the example using the following commands:

wget https://joy-it.net/files/files/Produkte/RB-RS485/RB- RS485-Beispielcodes.zip
unzip RB-RS485-Beispielcodes.zip

Please note that depending on whether you are using a Raspberry Pi5 or an older model, you will need to adapt the port in the code accordingly. To do this, you can refer to the comments in the code example.

Code example transmitter

Code example receiver

ADDITIONAL INFORMATION

Our information and take-back obligations according to the Electrical and Electronic Equipment Act (ElektroG)

Symbol on electrical and electronic equipment
This crossed-out dustbin means that electrical and electronic appliances do not belong in the household waste. You must return the old appliances to a collection point.
Before handing over waste batteries and accumulators that are not enclosed by waste equipment must be separated from it.

Return options:

• As an end user, you can return your old device (which essentially fulfils the same function as the new device purchased from us) free of charge for disposal when you purchase a new device.
• Small appliances with no external dimensions greater than 25 cm can be disposed of in normal household quantities independently of the purchase of a new appliance.
• Possibility of return at our company location during opening hours:
• SIMAC Electronics GmbH, Pascalstr. 8, D-47506 Neukirchen-Vluyn, Germa-ny

Possibility of return in your area
We will send you a parcel stamp with which you can return the device to us free of charge. Please contact us by email at service@joy- it.net or by telephone.

Information on packaging
If you do not have suitable packaging material or do not wish to use your own, please contact us and we will send you suitable packaging.

SUPPORT

• If there are still any issues pending or problems arising after your purchase, we will support you by e-mail, telephone and with our ticket support system.
• Email: service@joy-it.net
• Ticket system: http://support.joy-it.net
• Telephone: +49 (0)2845 9360-50 (Mon – Thur: 09:00 – 17:00 o‘clock CET,
• Fri: 09:00 – 14:30 CET)
• For further information please visit our website: www.joy-it.net

MORE INFORMATION

• www.joy-it.net
• SIMAC Electronics GmbH
• Pascalstr. 8, 47506 Neukirchen-Vluyn

Frequently Asked Questions

• Q: What should I do if I encounter unexpected problems during use?
  • A: Please do not hesitate to contact us for assistance with any unexpected problems.

References

• ITnet | Servizi di Colocation e Cloud
• Joy-IT Helpdesk
• For Makers and Professionals | Joy-IT
• Joy-IT Helpdesk

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