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RS485 FOTW! (Firmware over the wire)

mick last edited by

Re: OTA Programming over wire ? (RS-485)

I can confirm this can be done. I had all sorts of trouble with compiling bootloaders and ended up using the precompiled sensebender micro bootloader (which uses pin 8 for CS (SS) activation of SPI memory). The way around this for now was moving the rs485 to the hardware serial port and disabling all debug output. I went with a 3.3 Arduino Pro Mini and level shifter for the MAX485 module (thats all i have here). I've done 3 firmware updates over the wire using MYSController and so far am impressed with the results. I would like to compile a new DualOptiboot and move the SS pin but can't seem to make this happen.

Very messy breadboard, but just for an idea.
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By the way I have done this with the icsc lib from majenko, if anyone is interested. The rs485 input is directly sent via udp and v v. Additionally I extended the icsc with an ack funtionality to keep track on lost messages on the bus. It runs currently with 57600 baud.
Problem with running MySensors gateway on NanoPi NEO with Armbian
Troubleshooting • rs485 nanopi armbian • • mariuszjozala

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Hi @mariuszjozala , Thank you for reporting back. Glad that it works now! In my eyes, the good documentation (and availability of LTS options) is one of the really big plus points of the NanoPi/FriendlyARM products. I did save a local copy of their wiki, just in case it ever disappeared, because these references are really helpful. Best regards pragtich
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💬 RS485 4RelayDin Shield
OpenHardware.io • mysensors relay rs485 sensor network current sensor acs712 • • openhardware.io

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@openhardware-io Hi: (Please direct to Feanor-Anglin if possible) I previously ordered some 4RelayDIN PCBs off openhardware.io and got v1.6 PCBs but the info on the site I found is only for an earlier version of the PCB board. I am trying to build some of the boards but there are additional compomemts on the newer PCB board. The main one which looks to be a driver IC. Would you please share the updated information with me or perhaps update the openhardware.io site. Many thanks, Rod
Sensor for Vallox DigitSE RS485 ventilation system with integration into FHEM.
My Project • rs485 fhem vallox • • Heinz

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I found this old thread and since I have a Vallox machine it's interesting. RS485 is new to me but MySensors isn't. Can I have a node like this described by Heinz parallel with the "mickey mouse"-display? Using the display's connector? Or is it one or the other? I'd feel better having both (manual display&buttons and connection to MySensors=>Domoticz, in my case).
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OpenHardware.io • rs485 arduino pro mini • • openhardware.io

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This is great, thanks! One suggestion: add a switch mode regulator that can handle 12 or 24 volt DC input. This will allow small sensor devices to hang off a typical bus network having extra pairs for the central power supply.
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Development • rs485 • • Johny Mielony

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Hi, Have you seen the following: rs485-rs232-serial-transport-class-for-mysensors-org Is that what you are looking for?
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RS485 FOTW! (Firmware over the wire)

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RS485 FOTW! (Firmware over the wire)

Suggested Topics

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11.4kUsers

11.1kTopics

112.7kPosts

Loxone binding?
Controllers • rs485 tcp ip udp loxone • • kduino

Problem with running MySensors gateway on NanoPi NEO with Armbian
Troubleshooting • rs485 nanopi armbian • • mariuszjozala

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My Project • rs485 ethernet gateway hardware automation in-wall getwired • • feanor-anglin

💬 RS485 4RelayDin Shield
OpenHardware.io • mysensors relay rs485 sensor network current sensor acs712 • • openhardware.io

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My Project • rs485 fhem vallox • • Heinz

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OpenHardware.io • rs485 arduino pro mini • • openhardware.io

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Online

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Users

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