Hardware

0_1493571630495_nrf24l01SMD-GertSanders.lbr Here you go, as you can see, we both have @GertSanders to thank for this :)

@Jan-Gatzke I haven't messed with the pi gateway yet, but I am thinking maybe doing something like drbd (disk replication)

fine thx....

What @Redguy describes is very close to what I wish to accomplish with my HVAC system. If I start out with modbuspoll and a moxa converter as suggested by @Redguy a few questions arise to me: Is this moxa model the right one? http://www.moxa.com/product/uport_1110.htm How do I connect my HVAC and the moxa? Simply connecting GND, TxD and RxD of the HVAC to the corresponding pins of the moxa (see pictures below)? What about 5VDC? Any helpful people here see any problems in what I am trying to do? HVAC MODBUS adapter: [image: 1493294245567-modbus_adapter.png] MOXA pin assignments: [image: 1493294302059-moxa_uport_1100-resized.png] HVAC system: https://www.drexel-weiss.at/produkte-und-loesungen/einfamilienhaus/x2-geraeteserie/ MODBUS documentation: https://github.com/diresi/drexel-und-weiss/blob/master/900.6660_01_TI_Modbus_RTU_DE.pdf https://github.com/diresi/drexel-und-weiss/blob/master/900.6667_00_TI_Modbus_Parameter_V4.01_DE.pdf

@scalz - You're right. There doesn't seem to be an issue with mouser. I must have gotten hooked up with digikey and some of the smaller sellers. I have a contact ticket open with mouser and the manufacturer for one of the models, as they can't tell me what the code means and the datasheet doesn't specify it either. Will post back here with what the order code "988-AT25DF512CSSHNGU-B" means. The minimum order is £33 for me at the moment, I seem to remember this being a little higher last time i checked, so not sure if its a limited time thing (worth a look if anyone wants anything from there). Is anyone in need of these ICs as i would order some for you and post to you if you just cover the cost of the item and then the postage for them (more than likely cheaper than paying for postage from them at £12 per shipment, to the UK anyway).

@Shaun-Storbakken rfm69 is also supported by the library ;-) Pick the one that suits you best!

Thanks for including it there.

I used a ESP8266WiFi module with a static IP address and that seems to be working fine, but then again, the car needs to be in the neighborhood... Would be nice to have something like a bluetooth module of some kind to detect a bluetooth device such as my phone... gotta keep on dreaming... :)

@ronnyandre - hehe! That was a while ago :) I even made a PCB for everyone to use (including full schematics)! Check it out here: https://www.openhardware.io/view/4/EasyNewbie-PCB-for-MySensors

The easiest way to control the leds, if we disregard the radio power problem, is a mosfet. See https://www.mysensors.org/build/dimmer for how to build one, but that solution would need to be combined with SmartSleep or some other method for getting the change to the node without draining the battery.

@gohan - Dell R710 over here, brought pretty cheaply in the UK tbh. I have a few things running on it as I'm Microsoft trained and certified so i enjoy messing with that kind of stuff. I was once in that field and attempted to get some work but nothing ever came from it (i got sick of hearing "Sorry, you don't have sufficient work experience") so I've ended up back in University studying mechatronical engineering :( Anyway, that is another topic for discussion, you're welcome to message me anytime for a chat, would be nice :)

@flopp ...and need to make sure it stays clean all the time

@BulldogLowell My plan is to mount it on the edge of my garage roof far away from my trees. I have seen designs with spikes for keeping birds off. I think I will work those into the model before printing. My hot bed is 220 x 220mm which is 8.6" square. It should just fit if it is centered correctly.

I advise you to make a fritzing diagram so we can understand how you connected everything, otherwise it is quite hard.

@LastSamurai many of the esp8266 pins are special. I have run into a lot of trouble when using the ones that aren't marked as "safe" to use in Kolban's book. Some more information: https://forum.mysensors.org/post/63039 https://forum.mysensors.org/post/49193

That's odd... Unless that smd version has different voltage requirements, the nrf24 should fry with 5v

I think the generic board does not work because the default settings are not sufficient for ms. Be sure the settings match your actual esp8266 module. Did you pull down gpio0 when you powered on the module? This activates the programming mode. If you want to go the easy way just get a node mcu compatible board like wemos d1 mini. It has an onboard USB port and you don't have to manually put it in programming mode. Mqtt adds complexity. If you don't need it you should choose plain ms.

RFm69 irq is needed by the driver in RX mode, sure, but not only. It is used in different mode, TX send for example. So IRQ signal need to be wired.

@mpp Try reverting to MySensors 2.0.0 and update AVR to 1.6.18. made my node al lot more stable.

I did, I just needed the dimensions of the module for the antenna placement ;) Just measured mine though