Arduino UNO R4では、これまでの8bitのATmega328から、32bitのArm Cortex-M4プロセッサへと、大幅なCPU性能の向上が図られました。ルネサス製RA4M1という日本のメーカーのCPUが採用されたという点でも喜ばしいことです。 今回は、Arduino UNO R4に1.5inch OLEDモジュール(waveshare ...
Arduinoで人気の小型ディスプレイ「OLED」。いざ接続して、よくあるLCDのサンプルコード(LiquidCrystal_I2C.hを使うもの)を書き込んだら、fatal error: LiquidCrystal_I2C.h: No such file or directoryというエラーが出て動かない…。 このエラーメッセージだけを見ると ...
We all like cheap items off eBay especially if they do cool and unusual things, sometimes we get so carried away by the price that we do not even realize that fact that we do not know anything about ...
This system uses a colour-changing LED (RGB LED/tri-colour LED) that switches to a new colour every 5 seconds. Simultaneously, the colour name is displayed on an OLED mini screen (SSD1306). This ...
An Arduino Nano-based pulse oximeter and heart rate monitor using the MAX30102 sensor and a 0.96” OLED display. Displays SpO₂ and BPM in real-time, with push-button control and buzzer alerts. Compact, ...
This project demonstrates animated eyes on an SSD1306 OLED display using Arduino or ESP32. The eyes can blink, sleep, wake up, move in different directions, and show emotions like happy, sad, angry, ...