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

Build a tiny ESP32 OLED keychain with a 1.3-inch display and custom 3D-printed enclosure. Wire the ESP32 S3 and program it ...

Oscilloscope Canvas / Drawing Real-Time Graphs with Arduino and OLED

Hello everyone. Today, under the title "Oscilloscope Canvas," we will learn how to draw real-time moving graphs using an ...

Utilizing SD Card Modules with Arduino: Basics of File Operations and Memory Optimization to Overcome the '2KB Wall'

Hello everyone, and welcome to Tech & Tails! Our theme today is "Utilizing SD Card Modules with Arduino." Being able to save ...
Circuit Digest

Built a Compact DIY OLED Keychain Gadget Powered by a Rechargeable XIAO ESP32-S3 Microcontroller

DIY electronics enthusiasts are finding creative ways to shrink powerful microcontrollers into portable, daily-carry gadgets, and custom electronic keychains have quickly become a favourite project.