Hardware

@Sparkman Cool, thanks for sharing! It's always nice to have options.

@mfalkvidd Thanks! As energy harvesting doesn't seem to be "there" quite yet I will stick with both coincells and the 18650 lithium batteries as alternatives for my project (depending of the needed energy and space constraints of the single boards). Rechargeable or harvested power seems to be the only good solution for larger quantities of sensors in my opinion. Does anyone of you know where to buy cheap 18650's that don't explode and don't lie too much about their capacity :grin:

Ah that explains it for me. Thanks for the dettailed answer. I will @mfalkvidd's and switch the defines. thank you all ;) Greetings

@ToniA Thanks for the info. I tried playing around with it last night and like you mention, unless I invoked root, I could not get the port to work. I'm trying to see if there is another way to do it. Might have to just chmod 775 /dev/ttyAMA0 on boot. I'll try it again later tonight when i'm home. Thanks for the help.

OK, I will do that ;)

Did you check RX and TX channels? My serial to usb converter has the labels already switched (so I have to connect Rx to Rx and Tx to Tx).

Just to let you know, that best result I got was when I changed the DHT library (sparkfun) for the one with this sketch. with this sketch. Thank toy for your time. PH

works! thanks!

If you are using the analog output you might be able to remove the lm393 and the pcb it is mounted on entirely. Like I did on my plant monitoring as described in https://forum.mysensors.org/topic/2147/office-plant-monitoring/21

@awi I have one of the X10 switches that I dismantled the other day and the issue with trying to use that is that there is so much circuitry for the X10 portion of the thing that without having a schematic, I wouldn't know exactly what to disconnect to only leave the triac motor control circuit. Also where and how to connect in my galvanic isolation circuit.

Ok, then ill just start to read.

@masterkenobi said: There is also another thing concern me. What if my neighbor also into Mysensors? Will he be able to view all the data from my sensors? How do I secure the nodes? Take a look at https://forum.mysensors.org/topic/1021/security-introducing-signing-support-to-mysensors

@jbjalling Perfect, thank you so much for the confirmation! Time to get ordering :)

Yes. The two power supplies need a common reference, so the grounds need to be connected. BR Jonas

@Brandon-Golshirazian search for 'ultrasonic flow meter' in ebay. Boozz

Does anyone have any opinions of voltages and current through screw terminals? I'm looking around for terminals for AC power, i can get some 3.5mm pitch that handle >250VAC and then other 3.5mm will only handle >100VAC. I know there is different grades of plastic and metal, but can there seriously be that much difference or is this an instance of the manufacturer just covering their backs and i would be fine to use any terminal?

@alexsh1 Alrighty, thank you for that information. May be worth a look at for myself :)

hi. mysensors is compatible with sot version only for the moment. other package not yet if I'm right. sot version isn't i2c ;) sot version use one pin only.