Get bits from an integer

[Ganesh]

Hi
I have an string of number Ex = 01001010 and I want to split it to 0,1,0,0,1,0 I am able to get that but it ignoring the zero in the at zero index
I have attached flow below

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Thank You

[jbudd]

You are not injecting "0101001" but the number 0101001 (which is 101001)

[Colin]

Are you sure that is what you want to do? If so then why?

[Ganesh]

Hello,
I have several sensors, and each one of them is giving me binary values of 1 bit. These data are summed, and then they are delivered to Node-red as integer values. I want to display the state of these sensors in the NR Dashboard, thus I must first convert the integers to binary and then split the binary string in order to display the status of each sensor separately.

[Colin]

If you have it as an integer number then you don't need to convert to a string then extract the bits, you can extract the bits directly. However, before I help you to code that, please feed the data that node-red is receiving into a debug node and show us what you get, and tell us what bit values you want to get out.

[Ganesh]

I am feeding int value to bit unloader to convert to binary and then splitting it to 16 bit length in which I am using first 11 bit values to show the status of 11 induvial sensor

I have attached my flow below

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[Steve-Mcl]

With the buffer-parser node, you can get all values in 1 object (then you can simply use them like msg.payload.status.bit0) without looping / splitting etc.

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[Steve-Mcl]

If you want individual values, you can set them up and map them to named items from any bit you specify...

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[Steve-Mcl]

(Last one)

If you want well defined names (so you can use msg.payload.running etc) it can do that too..

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[dynamicdave]

Woooo - Steve, you have opened a door to a place I've never seen.
I can see a number of situations where my IoT students could use the buffer-parser.

[Ganesh]

Hi
Couple of Questions

1. Can I get the value as ON and OFF Instead of True or False.
2. what is the best method to reverse this process Getting integer from Binary Values

Thanks

[Steve-Mcl]

@Ganesh

Can I get the value as ON and OFF

Well since node-red runs on NodeJS (AKA JavaScript) - you can do whatever you like...

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@Ganesh

Getting integer from Binary Values

What is a "Binary Value" - Binary is simply a base2 representation of an integer.
e.g. 0b1111 === 15 === 0xF === 017 - proof...

So what exactly do you mean? A string of "1010101010101"? Where is your value coming from and what does it look like in the debug window?