"description": "1.14\" IPS TFT LCD (135x240, ST7789V, SPI) development board. ESP32 dual-core 240MHz, 4MB/16MB Flash, WiFi 802.11 b/g/n, Bluetooth 4.2/BLE, USB-C (CH9102), battery charging via JST ...

We've all heard that "if you want something done right, you have to do it yourself." And that's usually fine when it comes to tasks at work or baking your own birthday cake. But if you want a specific ...

Abstract: D printing in a resin printer requires two important steps after printing. Drying and Curing. This step makes printed parts stronger, smoother and durable. In this project small and ...

A PCB business card is a great way for electrical engineers to impress employers with their design skills, but the software they run can be just as impressive as the card itself. As a programmer with ...

Last year, we featured the T-Keyboard-S3, a USB mechanical keyboard with ESP32-S3, and four mechanical keys each fitted with a 0.85-inch color display. The upgraded T-Keyboard-S3-Pro adds a rotary ...

IntroductionIf you are an electronics student, hobbyist or researcher and have your own electronics lab. Then you might have many electronic instruments like multimeter, power supply, frequency ...

A 7-segment display is able to show numbers (or also characters) by displaying individual segments. A block contains 7 segments and an additional point. 7 segment displays are often used in watches, ...

An animatronic eye is a mechanical device that is designed to mimic the movement and appearance of a real eye. The circuit we made is powered by Arduino, and can be used for a variety of applications ...

Soon after writing about RoenDi rotary encoder with a built-in color display, readers pointed me to SmartKnob View, a similar-looking project but featuring an ESP32 module for WiFi and Bluetooth ...