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  2. ESP32 - Wikipedia

    en.wikipedia.org/wiki/ESP32

    ESP32 is a series of low-cost, low-power system-on-chip microcontrollers with integrated Wi-Fi and dual-mode Bluetooth.The ESP32 series employs either a Tensilica Xtensa LX6 microprocessor in both dual-core and single-core variations, an Xtensa LX7 dual-core microprocessor, or a single-core RISC-V microprocessor and includes built-in antenna switches, RF balun, power amplifier, low-noise ...

  3. Bang–bang control - Wikipedia

    en.wikipedia.org/wiki/Bang–bang_control

    A water heater that maintains desired temperature by turning the applied power on and off (as opposed to continuously varying electrical voltage or current) based on temperature feedback is an example application of bang–bang control. Although the applied power switches from one discrete state to another, the water temperature will remain ...

  4. NodeMCU - Wikipedia

    en.wikipedia.org/wiki/NodeMCU

    NodeMCU is a low-cost open source IoT platform. [4] [5] It initially included firmware which runs on the ESP8266 Wi-Fi SoC from Espressif Systems, and hardware which was based on the ESP-12 module. [6] [7] Later, support for the ESP32 32-bit MCU was added.

  5. Central heating - Wikipedia

    en.wikipedia.org/wiki/Central_heating

    Radiators through which the heated water passes in order to release heat into rooms. The circulating water systems use a closed loop; the same water is heated and then reheated. A sealed system provides a form of central heating in which the water used for heating circulates independently of the building's normal water supply.

  6. Minimum maintenance requirement - Wikipedia

    en.wikipedia.org/wiki/Minimum_maintenance...

    Minimum maintenance requirement may refer to: Design of a building to minimise the requirement for maintenance through facility management;

  7. Comparison of single-board microcontrollers - Wikipedia

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

    A low cost Arduino clone using the ATmega168/ATmega 328/ATmega 8 and designed for prototyping, it includes onboard peripherals such as an RGB LED, switches, IR Tx/Rx and DS1307 real-time clock(RTC). Japanino [91] A kit by Otonano Kagaku publisher in Japan. ATmega168 [33] The board and a POV kit were included in Vol. 27 of the eponymous series.