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  2. Digital current loop interface - Wikipedia

    en.wikipedia.org/wiki/Digital_current_loop_interface

    A digital current loop uses the absence of current for high (space or break), and the presence of current in the loop for low (mark). [1] This is done to ensure that on normal conditions there is always current flowing and in the event of a line being cut the flow stops indefinitely, immediately raising the alarm of the event usually as the heavy noise of the teleprinter not being synchronized ...

  3. KISS (amateur radio protocol) - Wikipedia

    en.wikipedia.org/wiki/KISS_(amateur_radio_protocol)

    KISS (Keep It Simple, Stupid [1]) is a protocol for communicating with a serial terminal node controller (TNC) device used for amateur radio.This allows the TNC to combine more features into a single device and standardizes communications.

  4. Universal synchronous and asynchronous receiver-transmitter

    en.wikipedia.org/wiki/Universal_synchronous_and...

    An example of a USART A universal synchronous and asynchronous receiver-transmitter ( USART , programmable communications interface or PCI ) [ 1 ] is a type of a serial interface device that can be programmed to communicate asynchronously or synchronously.

  5. Comparison of single-board microcontrollers - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_single-board...

    Serial communication on pin D0 (RX) and pin D1 (TX). used to receive (RX) and transmit (TX) TTL serial data. These pins are connected to the corresponding pins of the FTDI USB-to-TTL Serial chip. By sliding the switch (S1), RX/TX pins can be re-routed to Bluetooth UART connector. Linduino One Linear Technology Corporation [60] Yes ATmega328 16 MHz

  6. Arduino Nano - Wikipedia

    en.wikipedia.org/wiki/Arduino_Nano

    The Arduino Nano is an open-source breadboard-friendly microcontroller board based on the Microchip ATmega328P microcontroller (MCU) and developed by Arduino.cc and initially released in 2008. It offers the same connectivity and specs of the Arduino Uno board in a smaller form factor.

  7. Flowcode - Wikipedia

    en.wikipedia.org/wiki/Flowcode

    Flowcode is a Microsoft Windows-based development environment commercially produced by Matrix TSL for programming embedded devices based on PIC, AVR (including Arduino), ESP32, Raspberry Pi and RP2040 and ARM technologies using graphical programming styles (such as flowcharts) and imperative programming styles (through C, State Machines and Pseudocode).

  8. List of Arduino boards and compatible systems - Wikipedia

    en.wikipedia.org/wiki/List_of_Arduino_boards_and...

    Arduino Uno compatible board powered by ATmega2560. D0/D1 can be changed to D19/D18. It enables to multiple serial communication. [132] A4/A5 are not connected to SDA/SCL same as Arduino Mega. Mega 2560 PRO (Embed) ATmega2560-16AU RobotDyn: Embed version of Mega 2560 CH340G/ATmega2560 - compatible with Arduino Mega 2560 board.

  9. Universal asynchronous receiver-transmitter - Wikipedia

    en.wikipedia.org/wiki/Universal_asynchronous...

    Zilog manufactured a number of Serial Communication Controllers or SCCs. Starting in the 2000s, most IBM PC compatible computers removed their external RS-232 COM ports and used USB ports that can send data faster. For users who still need RS-232 serial ports, external USB-to-UART bridges are now commonly used. They combine the hardware cables ...