Please guys, I'm new and i need help with coding, also to help me confirm my circuit diagram.
Thought i made purchase of all components in the diagram.
Thanks in anticipation.
Posting part numbers for all but the UNO would be helpful.
Also you shoule edit the post and your diagram. A PT100 resistor is not a thermocouple.
Perhaps "Wireless Platinum resistor Sensor"
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Thank you John.
I'll adjust them.
Also the topic you suggested, is it still inclined to measuring temperature?
I have deleted your other cross-post @midecali.
Cross-posting is against the rules of the forum. The reason is that duplicate posts can waste the time of the people trying to help.
Repeated cross-posting can result in a suspension from the forum.
In the future, please create only one forum topic for each distinct subject matter. This is basic forum etiquette, as explained in the "How to get the best out of this forum" guide you will find at the top of every forum category. It contains a lot of other useful information. Please read it.
Thanks in advance for your cooperation.
Yes.
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Thanks i updated my diagram though. If you don't mind confirming it.
Hi,
A better schematic would be one using standard component symbols and not pictures of components with coloured lines.
Can you please draw and post an image of your circuit showing component names and pin labels?
And please post it in a new post, please don't update old posts as it will make following the tread difficult for anybody reading it from the start.
Have you got some code written?
Have you written any code before?
Can you please tell us your electronics, programming, arduino, hardware experience?
Thanks.. Tom... 
The connections look OK but I don't have time to go through in complete detail. I realize the Fitz diagrams sometimes do and sometime do not represent the actual wire placement on the final product. But I will give you some advice.
- Every connection on the solderless breadboard (SBB) is a risk of an bad connection. Do not make more jumps than actually needed.
For instance,
- Your PT100 board should be on the upper section of the SBB. That would eliminate a number of jumpers.
- Your power goes all the way around the board when it should go directly where the boards get their power.
- Add a 0.1µF cap on the SBB where the boards get their power. (for noise control)
- I don't have a lot of confidence in the power providing capabilities of a 9V battery. Especially with a radio that takes more current when transmitting. I would suggest 4 Alkaline AA cells. 5 cells would be better but harder to connect (as most battery holders are 1 or 4 cells.
-
You should test the PT100 without the radio. Outputting the data to the serial port via the Arduino IDE. This should be with the simplest program you can devise. No extra code, just the bare minimum. Best would be a library example.
-
You should test the radio's without the PT100. Again with the minimum amount of code. Again with either examples or the minimum of code.
I do this with each new device. I store the successful code in a folder "DeviceProveoutCode"
Good luck
John
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Continuing the discussion from Wireless Platinum Resistor Sensor:
Temperature reading keep showing -242°c for normal temperature water, but would give right response for my body temperature
Hi,
Are you immersing the PT100 naked into the water?
What does your PT100 look like.
Try putting the PT100 in a plastic bag and then immerse the bag in the water.
Tom....
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I just did upload the picture, kindly check
Hi,
Try adding 0.1uF capacitors.
One from Blue to Blue terminals and one from any Blue to Red terminal of the PT100.
You may need some bypassing.
Tom....
I added capacitors still same 242°C
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