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  2. Raspberry Pi 4 - Wikipedia

    en.wikipedia.org/wiki/Raspberry_Pi_4

    The Raspberry Pi 4 is the 4th generation of the mainline series of Raspberry Pi single-board computers.Developed by Raspberry Pi (Trading) Ltd [1] and released on 24 June 2019, the Pi 4 came with many improvements over its predecessor; the SoC was upgraded to the Broadcom BCM2711, two of the Raspberry Pi's four USB ports were upgraded to USB 3.0, and options were added for RAM capacities ...

  3. RP2040 - Wikipedia

    en.wikipedia.org/wiki/RP2040

    USB host, 5V boost converter Werkzeug USB Multi-Tool [31] Lone Dynamics 50×50 32 USB-C 12-pin female PMOD, USB Type-A female 1 MB 24 4 BOOTSEL USB device/host, PMOD RP2040 [32] WeAct Studio 53x21.52 40+4 via headers USB-C 2 MB, 4 MB, 8 MB, 16 MB 26 4 BOOTSEL + RESET RP2040-Zero [33] Waveshare Electronics 23×18 23 USB-C 10-pad connector 2 MB 29 4

  4. NSLU2 - Wikipedia

    en.wikipedia.org/wiki/NSLU2

    Stock, the device runs a customised version of Linux. Linksys was required to release their source code as per the terms of the GNU General Public License.Due to the availability of source code, the NSLU2's use of well-documented commodity components and its relatively low price, there are several community projects centered around it, including hardware modifications, alternative firmware ...

  5. Raspberry Pi - Wikipedia

    en.wikipedia.org/wiki/Raspberry_Pi

    2 November 2020 – Raspberry Pi 400 launched. It is a keyboard which incorporates Raspberry Pi 4 into it. GPIO pins of the Raspberry Pi 4 are accessible. [395] 21 January 2021 – Raspberry Pi Pico launched. It is the first microcontroller-class product from Raspberry Pi. It is based on RP2040 Microcontroller developed by Raspberry Pi. [47]

  6. USB communications - Wikipedia

    en.wikipedia.org/wiki/USB_communications

    The written USB 3.0 specification was released by Intel and its partners in August 2008. The first USB 3.0 controller chips were sampled by NEC in May 2009, [4] and the first products using the USB 3.0 specification arrived in January 2010. [5] USB 3.0 connectors are generally backward compatible, but include new wiring and full-duplex operation.

  7. Serial Peripheral Interface - Wikipedia

    en.wikipedia.org/wiki/Serial_Peripheral_Interface

    There are a number of USB adapters that allow a desktop PC or smartphone with USB to communicate with SPI chips (e.g. FT221xs [33]). They are used for embedded systems, chips (FPGA, ASIC, and SoC) and peripheral testing, programming and debugging. Many of them also provide scripting or programming capabilities (e.g. Visual Basic, C/C++, VHDL).