All Development Log

After completing the ROI logic, it was time to put it to the test. I ported my Python environment to Google Colab  and uploaded the images of actual gas meters to simulate a real-world scenario. The Workflow: Environment Setup:  Adjusting the Python scripts to run seamlessly in the Colab cloud environment. Model Preparation:  Training the model (leveraging the logic of MNIST but fine-tuned for meter digits) to recognize the segmented "slices" of numbers. Inference:  Feeding t

When dealing with high-resolution meter images, performing ROI (Region of Interest) localization  first is key to boosting accuracy and saving scan time. I noticed an interesting feature on most gas meters: the decimal digits on the far right are typically red . In the world of computer vision, this red color acts as a natural "anchor." My Implementation Logic: Downsample First:  To simulate a resource-constrained MCU environment, I downsample the image first to save memory.

It’s the same story for expensive industrial or medical equipment. You might have a million-dollar machine that works fine but isn't "smart." Because it can’t connect to the cloud, all that precious data stays stuck on paper, making it a nightmare to track trends or automate your workflow. We are currently developing an AI-powered smart reader specifically designed for traditional analog meters.   > This is more than just a sensor; it is the bridge connecting legacy equipment

Previously in Part 1, I talked about how my grow light gave up on me for the second time. Tired of unreliable store-bought lights, I decided to take matters into my own hands. Let’s build one from scratch! Shopping Spree: I grabbed some LEDs, a PWM module, a tiny fan, and a bunch of random hardware. Honestly? Buying the parts separately didn't break the bank at all. Putting it Together: I wired up the LEDs, hooked the PWM module to an STM32 , and let the microcontroller han

For any indoor plant enthusiast, a grow light is a must-have. Beyond keeping plants alive, they’re essential for setting the mood. However, my light recently decided to quit on me... again. More of a Band-Aid than a Cure This light was a budget-friendly find from a few years back. It’s elegant, has a soft output, and was the star of my plant shelf. About half a year ago, it had its first breakdown. Unwilling to let it go, I went full DIY mode—disassembling and soldering it ba