Easily create an ESP32-C5 dual-band Wi-Fi analyzer

Chen Liang (陳亮) has found an interesting use case for the Espressif ESP32-C5: a dual-band Wi-Fi analyzer showing the signal strength of 2.4 GHz and 5 GHz WiFi access points in your area. It works like one of the Wi-Fi analyzer apps on your phone, except it relies on an ESP32-C5 board and a display support for the Arduino_GFX libraries, for example, based on the ILI9341 driver, as it’s easier for beginners since the code does not need to be changed. Here’s what it looks like. You can follow the instructions provided by Chen to reproduce the setup. It’s fairly straightforward. He specifically used an ESP32-C5-DevkitC-1 board (or one of the clones) along with an ILI9341 display (not sure about the exact model, but any should do) and wired them together using a breadboard as shown in the photo below. You’ll then need to fire up the Arduino IDE, install Arduino […]

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