Topics created by Matt

@mfalkvidd Thanks heaps, enjoy your trip

Support for atmega168 has been added in the development version of MySensors and will be available in the next stable release. More info in https://forum.mysensors.org/topic/5727/compile-error-for-pro-mini-5-5v-168/

@Matt Not sure if you do this. But in my experience, you need to add small delays (wait(15)) in your sketch after communication. Especially when creating large multi sensor nodes. The radio isn't always fast enough to digest all of the communication. Not sure if this is your problem, but it solved my problems.

Hi @Matt Thanx your for your posting. Hopefully others can benefit from this.

Did you verify that the message is received by the node? I'm not familiar with FHEM, please note, that the first outlet uses child ID 4. What's the debug output of the node?

OK so rather than wait for shipping from China I went to my local Jaycar and got one of these LDRs. If the link gets broken its a cadmium sulphine LDR with a rise time of 50ms and decay of 40ms. Works like a charm. Because its flat I can tape it directly to the LED in my power meter, covering the whole thing with black tape to ensure no ambient light problems. Two pinholes in the tape and the LDR leads go right through no probs. I have some thin wires going to the LM393 unit (so minimal weight on the LDR/Tape itself) and I guess the comparator in there is good enough to pick up the change in resistance on the LED pulses. So if you wind up with one of these units I recommend swapping the photodiode with a high spec LDR and soldering some leads from the module to the LDR to facilitate accurate fixing to the meters LED. I used two bits off an old length of ribbon cable (IDE HDD type stuff).

<SOLVED> OK so my presumption/suspicion was right, does need to be sending an active signal for the node to transmit any data. Seems to be working well now, just have to find a spot in my long house where the gateway will reliably talk to the polytunnel AND the meter reader. And for any others struggling with this, especially getting the sensor LM393 to work, I found it needs to be pointed directly at the LED in my meter, not side on. To achieve this I drilled a small hole in the top of a jam jar lid and epoxied the board to it, then taped the lid to the meter. Seems to be working a treat now. YAY! Thanks MS team, you have a great product. Next step is temp sensors for the kids bedrooms and a relay on their heaters (winter is coming to the deep south of NZ) Cheers, Matt

On the other hand, if you were determined to stay out of the soil, then IRT of canopy temperature as a proxy for plant water stress looks like it might be pretty easy to put together: file:///C:/Users/LR/Downloads/sensors-14-19639-v2.pdf