Light Intensity Monitoring System

Instead of using Chart,
Can we use Graph so that it would be easy to understand?

yes in future classes you will learn that too.

No, the data does not get lost . The previous data are stored and you can continue to enter data even you do the same next day. Just recheck and ensure internet connection and wait for a while to see your previous data values.

Actually when we have connected all the components correctly we will have the 2 led lights glowing on our bolt module but instead there is only one glowing and that is too the wifi that means you have connected to wifi but there is some problem regarding your connection with bolt cloud or simply your bolt device is having some problem to connect with your the cloud.So my opinion is that please try it once again by changing the usb cable that you have previously used since there is a problem with the connection with the bolt cloud. Thankyou.

Can we get the graphical data instead of the chart ??

Instead of connecting one lead of your resistor to 3.3 V pin connect it to 10 K pin and try. It might work for you. Also make sure you turn of the power supply while making any connections to ensure that the hardware is undamaged.

1 Like

Right now, only chart representation is available on Bolt Cloud. However, you can surely export the data and visualize it through graphs using Excel Sheet


You can visualise the data using graph. Please visit the documentations here

i have created my first project with bolt which is light intensity monitoring system but the value is constantly zero. I have done all the troubleshooting given in the tutorial but still the value is not changing. now i have transferred the circuit to the breadboard but still the value is zero and not changing up. plzzz help me.

@lakshyarao22 Can you share the connections that you have made? Most probably,

  1. You have made an incorrect hardware connection.
  2. The hardware config on the cloud is incorrect.
  3. The code to visualize the data is incorrect.

What is the date shown on the data point in your graph?

@robot.bkp I had the same problem, my problem was I saved the product very quickly and exited the editing page. I suggest you to the following:

  1. un-link the product from the device.
  2. delete your whole product completely.
  3. create a new product and follow the video tutorials thoroughly.
  4. link the project again to the controller.

This procedure worked for me and I believe it will also work for you. Peace :v:

I have again deployed the code the date it is showing is 17 Aug 2019, The date is correct.
i have checked all the mentioned problems and double checked it from the video. I can surely say that these are not the problems. the problem is something else.

my code is

where ldr is variable configured to a0

and also my picture is not uploading to the fourm, it is showing access denied

@lakshyarao22 Can you share your browser details and the product details to