I've got a service written that works, if you want a copy. Each sensor publishes to it's own MQTT topic and the service reads off the queue whenever it receives a loop packet and appends whatever data it finds. Let me know and I'll post it.
Dan On Wednesday, June 21, 2017 at 7:37:28 PM UTC-4, Craig Thom wrote: > > Thanks. I'm using the sdr driver, so I'm leaning toward a service, and > I've already got a little experience writing one. > > On Tuesday, June 20, 2017 at 6:05:12 PM UTC-4, Neville Davis wrote: >> >> In getting the data into weewx.....I have a number of different sensors >> i2C one wire and data from a web sever (json) from my Airconditioner...all >> being input to weewx. >> >> My basic method is to get data as a csv file by running scripts from boot >> ( i have 3 of these files being generated in a ramdisk) and then I use 2 >> methods...a driver the get all the weather data and a weewx service to get >> the data from the aircon. The following is a screen shot of the current >> conditions. >> >> >> >> On Monday, June 19, 2017 at 10:43:33 PM UTC+10, Craig Thom wrote: >>> >>> Thanks. My question is really about getting the data into weewx, but >>> I'll worry about that later. >>> >>> After another message about the sensors themselves, I've decided to go >>> with low power 915MHz radio using the mysensors org protocol. I should be >>> able to get many months from 3xAA batteries. The parts are coming from >>> China, so I've got a month or two to think about getting them into weewx. >>> It will probably be after the eclipse, since I'll be spending increasing >>> time testing the hardware and software to photograph it. >>> >>> So sensors through mysensors hub to MQTT broker, and then somehow into >>> weewx. In August. >>> >>> On Wednesday, June 14, 2017 at 11:28:27 AM UTC-4, Paul Bartholdi wrote: >>>> >>>> Hello, >>>> >>>> It could be good to have a look at "http://www.yoctopuce.com";. The >>>> company is based in Geneva, Switzerland, but send products worldwide, with >>>> typical Swiss high quality. They have extremely low power hubs usb --> >>>> Ethernet, gsm or WiFi, which can put all the boards asleep and wake up >>>> only >>>> on command from central PC. Boards include barometer, temperature(s), >>>> humidity, light and many other possibilities not so much related to >>>> weather >>>> station. Software exists for most high level languages (C, C++, Java, >>>> Python, shell (bash) etc.). >>>> MQTT looks very interesting, but I had no time yet to play with it. To >>>> interface other programs with weewx data, I simply interrogate the >>>> database >>>> (mysql). >>>> Hope this helps. Paul >>>> >>>> On Tuesday, June 13, 2017 at 3:53:48 PM UTC+2, Craig Thom wrote: >>>>> >>>>> tl;dr What's the best way of getting home brew wireless sensor data >>>>> into weewx? >>>>> >>>>> I plan to build a soil moisture (and temperature) sensor for my garden >>>>> bed. I'll likely build another for leaf wetness and UV index, because >>>>> the >>>>> sensors are cheap and it will be fun. >>>>> >>>>> The question is how best to get this data to weewx. I am already >>>>> using the SDR driver for my Acurite 5-in-1 and additional sensors. >>>>> >>>>> I could use a 433MHz transmitter. I think, though, I'd have to decide >>>>> on how to make a packet, then modify rtl_433 to recognize that packet, >>>>> then >>>>> modify SDR.py to use that new rtl_433 packet. This seems pretty >>>>> complicated. >>>>> >>>>> Or, since these sensors will be within range of wifi, I could use an >>>>> ESP2866. This is attractive because the microcontroller for reading the >>>>> sensor and processing the data is in the same package. I really like >>>>> this >>>>> idea. >>>>> >>>>> But how do I get the data to weewx? >>>>> >>>>> Because the sensor will be running on batteries (and maybe solar cells >>>>> for the UV/leaf wetness one), I do not want to turn on the wifi radio >>>>> except when absolutely necessary, so weewx will not be able to initiate >>>>> contact. >>>>> >>>>> My first thought was to use ftp, so the sensor connects to an FTP >>>>> server on my network, probably on the RPi running weewx, and dumps a >>>>> file. >>>>> Then I could write a service within weewx to check for that file, read >>>>> it, >>>>> and add the data to the LOOP packet. >>>>> >>>>> But I was reading through old discussions here, and I found one using >>>>> MQTT as a source for weewx. There was no resolution reached, other than >>>>> some references to weeRT that I didn't really understand (and weeRT is a >>>>> lot harder to Google than weewx). >>>>> >>>>> MQTT is attractive because it's a standard, and other things could >>>>> subscribe to the sensor data (like a home automation program, or >>>>> something >>>>> that will turn on the water to the garden bed). >>>>> >>>>> I'd rather not start from scratch with the regular sensors; I'd like >>>>> to keep using the sdr driver. >>>>> >>>>> Is there some really obvious solution that I'm missing? Is there code >>>>> someone for producing Acurite-like radio packets so my sensors could just >>>>> pretend to be a tower sensor or something? >>>>> >>>>> (I was concerned about getting accurate numbers from a soil moisture >>>>> sensor, because all my reading says it depends on soil type, and it needs >>>>> to be calibrated, etc., but Davis doesn't do any of that calibration, and >>>>> if just using relative moisture is good enough for them, it's good enough >>>>> for me.) >>>>> >>>> -- You received this message because you are subscribed to the Google Groups "weewx-user" group. To unsubscribe from this group and stop receiving emails from it, send an email to weewx-user+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
