Hi everyone, I wanted to share my recent experience with the ESP01_1M module and how I managed to resolve an OTA update issue. I hope this helps someone else who might be facing a similar problem!
A few weeks ago, I noticed that my ESP01_1M module was having trouble with OTA updates after switching to the latest Arduino version. The error message I received was ‘ESP does not have enough space to store OTA file.’ This was frustrating because I had been able to update the firmware without any issues before.
After some research and trial and error, I discovered that the issue was related to the firmware footprint. The latest Arduino version, while solving the reboot problem, had increased the firmware size beyond what the module could handle for OTA updates. I tried reducing the firmware size by removing unnecessary components, but it still didn’t work.
Here’s what finally worked for me:
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Flash the module using a serial connection: I decided to flash the module directly using a serial connection instead of OTA. This required opening up the light bulb, which I wasn’t too excited about, but it was worth it to get the module working again.
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Use a minimal firmware configuration: I configured the firmware to its minimal settings, ensuring that only the essential components were included. This significantly reduced the firmware size, making it possible to flash the module without issues.
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Verify the firmware after flashing: Once the firmware was flashed, I checked the module’s status and functionality to ensure everything was working as expected. I was relieved to see that the module was back to normal!
This experience taught me the importance of carefully considering firmware updates and their impact on device performance. It also highlighted the value of having a backup method, like serial flashing, for situations where OTA updates aren’t feasible.
I want to thank the community for all the helpful resources and troubleshooting tips that I referred to during this process. It’s amazing how much you can learn from others’ experiences!
If anyone else is dealing with similar issues, feel free to reach out, and I’ll be happy to share more details about my solution. Happy tinkering! 