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Fully Arduino compatible board, that fits perfectly on a Raspberry Pi, and can be programmed through the Raspberry Pi's serial interface. It also breaks out the Raspberry Pi's SPI and I²C interfaces, or can be used as a stand-alone Arduino when powered with the external power header. Romeo 2012 [108] ATmega328 DFRobot [109]
Arduino – a popular microcontroller board family; ESP32 – a series of low-cost, low-power system on a chip microcontrollers with integrated Wi-Fi and dual-mode Bluetooth. STM32 – a family of 32-bit microcontroller integrated circuits; Raspberry Pi – Raspberry Pi's series of small single board computers
The Raspberry Pi Zero v1.3 was released in May 2016, which added a camera connector. [40] The Raspberry Pi Zero W was launched in February 2017, a version of the Zero with Wi-Fi and Bluetooth capabilities, for US$10. [41] [42] The Raspberry Pi Zero WH was launched in January 2018, a version of the Zero W with pre-soldered GPIO headers. [43]
The microcontroller is low cost, with the Raspberry Pi Pico 2 being introduced at US$5 and the RP2350 itself costing as little as US$0.80 in bulk. The microcontroller is software-compatible with the RP2040 and can be programmed in assembly , C , C++ , Free Pascal , Rust , MicroPython , CircuitPython , and other languages.
Many of these systems interface with consumer electronics such as the Arduino or Raspberry Pi, which are easily accessible online and in most electronics stores. [23] In addition, home automation devices are increasingly interfaced with mobile phones through Bluetooth, allowing for increased affordability and customizability for the user. [8]
The Raspberry Pi, as well as most boards from Arduino, does not have an onboard real time clock. The Galileo boards have a real time clock, requiring only a 3 V coin cell battery. [11] The boards can therefore keep accurate time without being connected to either a power source or internet. [16]
Programmable microcontrollers and single-board computers like the Arduino, Raspberry Pi, BeagleBone Black, and Intel's Galileo and Edison, many of which are open source, are easy to program and connect to devices such as sensors, displays, and actuators. This lowers the barrier to entry for hardware development.
The robot is modular, with various sensors and boards able to be attached, including Arduino and Raspberry Pi. It has a swappable battery charged via a USB-C port. It has an increased focus on education. [7] [8] It was released in October 2019 at $249. [9]