The Arduino Uno-compatible board has an MCS-51 (often called 8051 instead) instead of the usual ATmega328P/ATmega168. Specifically, [ElectroBoy] uses the AT89S52.

To build this project, all you need is three main components: an Arduino Uno, a 16x2 LCD, and a push button. You can connect everything to a breadboard to keep it simple.

Inside the box, you will find: Arduino UNO R4 WiFi 32-bit microcontroller: the brains of your projects. Seven Modulino nodes consisting of sensors and actuators for different functionalities.

Arduino says these additions allow for more advanced projects. Besides Wi-Fi and Bluetooth, the UNO R4 Wi-Fi has a built-in LED matrix with 96 dots arranged 12x8.

Finally, your Arduino toolkit will be incomplete if you don't purchase some sensor and circuit modules. After all, you can’t build a precise weather station without a BME280, DHT22, DS18B20, or ...

Posted in Arduino Hacks, Tool Hacks Tagged Arduino Uno, thermal camera, thermal imaging ← Hackaday Podcast Episode 249: Data By Laser And Parachute, Bluetooth Hacks, Google’s Gotta Google ...

The Arduino UNO R4 boasts a 3x performance increase over the UNO R3 and , in addition, SRAM has been upgraded from 2kB to 32kB, and flash memory from 32kB to 256kB to support more complex projects.

This second version – Rev2 – of the Arduino Uno WiFi board is functionally the same as the Arduino Uno Rev3, but also comes with built-in WiFi, enabling easy connection to the Internet, plus the ...