Hello, I am relatively new to utilizing CodeSys and possess intermediate knowledge of PLC's. I am currently in the process of setting up a smart home system using a Raspberry Pi, CodeSys, and a Philips Hue system. While attempting to send a PUT command using the HTTP client, I have encountered some issues. Although I receive a "xDone" response from the function block, I believe there may be an error in the conversion from "pointer to wstring." It seems that the incorrect data is being sent, as I am seeing something like "≻湯㨢牴敵}" instead of {"on":true}. Despite my efforts to find a solution, I have not made much progress. I would greatly appreciate any guidance or insight you can provide on resolving this matter.
Utilize the HTTP Client Solution to Declare and Set the wsPostValue as a 100-character WSTRING "{$"on$":true}" to Handle Code Exclusion.
Hello, could you please send me a screenshot of your code? I have been struggling with this issue for the past two weeks and would greatly appreciate your assistance. Thank you.
It sounds like you're on the right track with your setup, but that encoding issue can definitely be tricky! When you're dealing with strings in CodeSys, especially when interfacing with HTTP requests, make sure you're correctly managing the data types. You might want to double-check how you're converting your data to a `wstring` and ensure that you're using the correct encoding—UTF-8 is usually standard for JSON. Also, a good practice is to log the raw output before sending it to see exactly what's being generated; this can help you catch any discrepancies. If you haven't already, try using a tool like Postman to test your PUT request independently to confirm that the problem lies within your CodeSys setup rather than the Philips Hue API. Good luck, and feel free to share your progress!
It sounds like you're facing a tricky issue with your CodeSys setup! The weird characters you're seeing usually indicate a problem with how the data is being formatted or encoded before sending. Make sure that your JSON string is properly formatted as a UTF-8 string and that you're correctly converting it from a pointer to a `wstring`. You might also want to check if the Philips Hue API expects any specific headers or content types with your PUT request. Debugging step-by-step, like logging the exact string being sent just before the request, can also help pinpoint where things go off-track. Don’t hesitate to share more details about your function block configuration if you need more specific help!
✅ Work Order Management
✅ Asset Tracking
✅ Preventive Maintenance
✅ Inspection Report
We have received your information. We will share Schedule Demo details on your Mail Id.
Answer: 1. Question: What is the issue with sending PUT commands to the Philips Hue system using CodeSys and Raspberry Pi? Answer: The issue seems to be related to the conversion from "pointer to wstring," resulting in incorrect data being sent, leading to unexpected responses.
Answer: Answer: To resolve the data conversion error, you may need to look into the data formatting or encoding to ensure that the correct data, such as {"on":true}, is being sent.
Answer: Answer: The unexpected response may be a result of the incorrect data being sent due to the conversion issue, causing the Philips Hue system to respond with unexpected characters.
Answer: Answer: You can troubleshoot the issues by checking the data conversion process, verifying the data format being sent, and ensuring proper communication between CodeSys, Raspberry Pi, and the Philips Hue system. Additionally, seeking guidance from experienced users or forums can also be helpful in resolving the matter.
Join hundreds of satisfied customers who have transformed their maintenance processes.
Sign up today and start optimizing your workflow.