rogerjames
Junior Member
If better is possible, good is not good enough.
Posts: 61
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Post by rogerjames on Dec 8, 2019 3:01:20 GMT -8
Solar radiation and UV index measurementOn many Weather Station systems, two parameters are used which I miss. - Solar radiation in Watt / m2 and sunshine hours
- UV index / radiation.
Is it something that is being considered in WeatherPlus in the future, or is it a "do it yourself" solution with new sensors on the Grove interface ? It is also our idea with OurWeather that you have to think and develop new functionality yourself. WeatherCloudapp.weathercloud.net/d0070391583#evolutionWeatherCloud is an interesting weather station portal where you can write and get an App key, so you can submit your data every 10 minutes. And it's free, but only for data every 10 minuts I will try to integrate with the service, having a nice interface with nice graphs and good visualization. app.weathercloud.net/d0070391583#evolutionIt's a little weird with WeatherCloud that they don't have any references or descriptions of how to get started. hello@weathercloud.net I wrote to them on their contact page, after which they asked for some information about me. After that, I was sent a personal app key and a brief description of their API. weathercloud.net/site/aboutWeathercloud API Documentation This document is strictly confidential and may not be disclosed. Here is the link to their contact page: weathercloud.net/site/aboutOr write to hello@weathercloud.net
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rogerjames
Junior Member
If better is possible, good is not good enough.
Posts: 61
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Post by rogerjames on Dec 9, 2019 7:16:43 GMT -8
I've come a bit further with how to measure Watt / m2 from solar radiation. The question is: Can you convert 75 lux to watts / m2?There is no simple conversion, it depends on the wavelength or color of the light. However, for the sun there is an approximate conversion of 0.0079W/m2 per Lux. To plug in numbers as an example: if we read 75,000 Lux on a light sensor, we convert that reading to W/m2 as follows: 75,000 × 0.0079 = 592,5 W/m2
Source: physics.stackexchange.com/questions/135618/rm-lux-and-w-m2-relationshipTSL2591 Sunlight sensor:SwitchDocLabs writes about just such a LUX sensor in an article that I link to here: www.switchdoc.com/2019/06/grove-tsl2591-sunlight-ir-i2c-sensor/Thus, it must be a small task to write an add on to SDL_ESP8266_WeatherPlus.ino so that this sensor can be added as a Grove Sensor. But why not used the new Grove SI1145 Sunlight / IR / UV I2C Sensor. It can message Sunlight, Ir and UV all in one sensor. shop.switchdoc.com/collections/sensors/products/grove-sunlight-ir-uv-i2c-sensorAre there any plans to implement such a module in Our Weather1 and / or WetherPlus2 ?
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Post by SDL on Dec 9, 2019 10:09:00 GMT -8
Well, long story. While the SI1115 works well with OurWeather, it doesn't work well with complex systems on the Raspberry Pi so we moved to the TSL2591.
We have in house a specialty chip to send UV and we will be building a board for that in the next couple months.
BP
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