If designed properly and the nodes do not have significant power requirements usually a design issue , one can phantom power the nodes, ie use the power on the rx line s. You just mean run power? Can you give an idea of how much ‘somehow far’ is? Notify me of new posts via email. Learn how your comment data is processed.

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RS-485 node control for Arduino

Well RS is your transmission and reception standard. At least when you put it in industrial environments. RS Fri Aug 24, 3: A diagram would be best, but wiring is as follows: Or another simple way to control the DE-Line? You should check out the wikipedia article.

It is very slow and non-deterministic to do this via Raspberry Pi GPIOs since you dont exactly know when transmission is completed to flip the lnux. The is older, made with bipolar transistors, consumes more power and it is about times cheaper than the MAX and about 4 times cheaper than the classic MAX RS Sun Aug 05, 6: Can’t see this happening, but it is much more fun.

There are 4 pairs of wire in a CAT6 cable so one or two pairs could carry power to each device if the current consumption is low. I see they have a Modbus library for Linyx In order to get the second alternative to work I’d realy like to have two different interrupt sources for the TX-module. And another kernel newbee question: This is a very nice setup and designed well. Since I will have less than a meter from my Pi to the instrument that will not be a problem. Sending 5V directly is not an option unless your calbe is short and you draw little current.


RS node control for Arduino | Hackaday

You are commenting using your Facebook account. Wanting to lihux a split flap display that was not near a computer [Tom] looked to a common solution for communicating over distances not practical for I2C or SPI. That is your choice.

Or do I have to dig into the kernel module for the serial port? Learn how your comment data is processed.

It uses a MAX chip, a pair of RJ45 jacks for Ethernet cables, and two terminal blocks for power and communications. RS is not a protocol, it is a standard for a physical interface. The clarity for your put up is just cool and i could assume you are a professional on this subject.

MAX SPI UART with RS/RS on MBED | Mbed

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Llinux could still follow the POE standard even if the data lines were not technically Ethernet. The MX chip appears suitable for this but, as always the devil is in the detail so read the data sheet to see if there are any gotchas. I made the mistake of thinking it was Ethernet by looking at the picture and not actually reading the title RS or the article.


You could also obviously understood what I meant, so why be a semantic douche?

MAX3140 SPI UART Driver

Simply want to say your article is as astounding. Email required Address never made public.

Do you know there is an alternative way of wiring the LT, that does not need the driver. In fact he is using http: But I don’t know how to enable it.

Thanks for that, as I say, not important for my needs but if msx3140 wants to hack my project under CC licence then sure! This is the obvious choice because you are creating a solution that does not require clock sync across the llinux cable – you have local sync at both ends and that works just fine.