Hello, sorry for the missing information, we will add this in our online documentation. So here is the information you need: from top to down the signal lines on the RS485 plug are

1. functional ground
2. ground
3. B (negative, N or D-)
4. A (positive, P or D+)

You may use for example the USB Wifi dongle from our shop which we have proven to work as AP with the command iw list | grep AP But if you use an USB Wifi dongle and you would have to reset it as it behaves strange you would have to reboot the whole RevPi Connect. But how about our Wifi and LTE rout...

You can use a RevPi Connect or RevPi Core 3 Module together with AIO modules to implement a sensor application for analogue values. The RevPi works with a process image. So the analogue sensor data is cyclic updated in the RevPis process image that you may access i.e. by C, Python or Node Red or a s...

Yes I agree with you that this is not a performant way to build an application. An alternative way is to read two bytes and you get all inputs of one DIO at once. For example you have a DIO on input offset 0 you can get a decimal, hexadecimal or binary value representation of all inputs by: pi@RevPi...

Hi, you may use the imagebakery GitHub repository to create a minimal image that contains all the KUNBUS drivers as well. Here is a step-by-step guide for you. I have used a Ubuntu 18.04 virtual machine to create the image. Download RASPBIAN STRETCH LITE https://www.raspberrypi.org/downloads/raspbia...

Hi there are several options for you. First I recommend you to think or share with us what your desired system shall do. Then you can decide which packages are involved and which are obsolete. The other way is that you create your own custom image. Have a look at imagebakery on our GitHub repository...

Hello, I'll try to cover your questions from bottom to top: The RevPi Connect is like a RevPi Core 3 but with additional features like hardware watchdog, RS485, 2 separate RJ45 ethernet interfaces, etc... Have a look here for the details. So if you want to use two independent ethernet interfaces (wa...

Hi, you may free disk space by removing all packages that are unnecessary for your application. So it depends on you which packages you may remove. Here is a similar discussion. But to show a practial example here is what I can provide: The available space on fresh stretch image: df -h / Filesystem ...

The key point here is that we wanted to have a balance between costs and benefit. We first designed the DIO module. Then with a working DIO module it is reasonable that DI and DO modules are just variants of a DIO. So with this way we save development costs. Therefore if you only want inputs the DI ...

Thank you for sharing your experiences with the community. As you can see the complexity i.e. for USB may be hidden in those details we usually not think about first.