The following project demonstrates "A Real-Time Digital Clock" built using Arduino Uno R3, a 16x2 LCD display, and push buttons—no RTC module required. The project uses Arduino’s internal timing and ...

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, ...

Before we get started it is important to understand that there two types of nRF24L01 modules available in the market one is called just nRF24L01 and the other is called nRF24L01+ PA+LN. While both the ...

[Matt] over at Make came up with a way to send push alerts to his iPhone whenever his mailbox is opened. The electronics are just a switch mounted to the mailbox connected to an Arduino with an ...

Let's make a Face Mask with LEDs! **Materials:** - Individually addressable LED strip soldered in a 30 x 12 LED grid - ...

Today I learned that WiFi and Bluetooth LE could NOT be used simultaneously on Arduino boards featuring the ESP32-based u-blox NINA-W102 wireless module, impacting the Arduino Nano RP2040 Connect, ...