Build a Custom OLED Keychain Buddy with an ESP32 S3 from Scratch

Building a tiny OLED keychain with an ESP32 microcontroller is a compact yet rewarding project that combines electronics, programming and 3D design. In a guide by Tech Talkies, the process is broken down into manageable steps, starting with assembling essential components like a ESP32 S3 board, a 1.3-inch OLED display and a small rechargeable battery. […]
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