String versus Number in Blocky

[DomoticaRob]

I use a selector to input the desired temperature.
I have a temperature sensor connected to a ESP8266 that gives the temperature in the room.
I want to compare both to decide if the heater must switch on or off.
Can I covert a number to a string and/or can I convert a string to a number in Blocky?

Looking forward to a solution.

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The error code is:

2017-10-16 22:36:04.885 Error: EventSystem: Lua script error (Blockly), Name: Thermostaat_3 => [string "result = 0; weekday = os.date('*t')['wday']; ..."]:1: attempt to compare string with number



My Blocky is:

Blocky.png (38.81 KiB) Viewed 1531 times

My Selector is:

Selector_1.png (51.18 KiB) Viewed 1531 times

Selector_2.png (187.21 KiB) Viewed 1531 times

[psb777]

You are comparing a temperature with "OFF". I don't think you can do that. But if that is valid then your report may be a duplicate of the issue I reported at http://www.domoticz.com/forum/viewtopic ... 8e58c96f92

I suggest you log the values you're comparing as I did in my Blocky code - then you can see what is going on.
The log will also show you which IF statement you're failing on.

I would be very interested in your findings.

[DomoticaRob]

Thanks psb777 for your reply.

I use a selector switch in Domoticz because I want to input a desired temperature. The first level in a selctor switch is always ‘Off’. I can hide that level, so you don’t see it in your dashboard, but still the levels are strings.
The measured value is a number.
In lua you can convert a string to a number with the statement ‘tonumber’.

How do I compare in Blocky a selector switch value with a measured number value?

I had a solution, see Blocky example, but that is in my opinion a lazy programmers solution. In this case it can be ok, but in other situations I want a small solution.

Who can help me?

Blocky_2.png (92.64 KiB) Viewed 1492 times