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The Arduino Uno is an open-source microcontroller board based on the Microchip ATmega328P microcontroller (MCU) and developed by Arduino.cc and initially released in 2010. [2] [3] The microcontroller board is equipped with sets of digital and analog input/output (I/O) pins that may be interfaced to various expansion boards (shields) and other circuits. [1]
A push switch (button) is a momentary or non-latching switch which causes a temporary change in the state of an electrical circuit only while the switch is physically actuated. An automatic mechanism (i.e. a spring ) returns the switch to its default position immediately afterwards, restoring the initial circuit condition.
Reset button. Pro Micro [200] ATmega32U4 Sparkfun and clones A popular low-cost compact Arduino-compatible board. Available in 3.3 V and 5 V versions. Rainbowduino [201] An Arduino-compatible board designed specifically for driving LEDs. It is generally used to drive an 8x8 RGB LED matrix using row scanning, but it can be used for other things.
Reset button. Pro Micro [187] Sparkfun and clones ATmega32U4 A popular low-cost compact Arduino-compatible board. Available in 3.3v and 5v versions. Rainbowduino [188] An Arduino-compatible board designed specifically for driving LEDs. It is generally used to drive an 8x8 RGB LED matrix using row scanning, but it can be used for other things ...
A small curved spring, preloaded (i.e., compressed during assembly) so it attempts to extend itself (at the top, just right of center in the photo), is connected between the flat spring near the contacts and a fulcrum near the midpoint of the flat spring. An actuator nub presses on the flat spring near its hinge point.
After months of more mild cases, the bird flu appears to be ramping up: The U.S. just saw its first death from the virus, and cases have been found in birds across all 50 states, according to the ...
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One by one, diversity, equity and inclusion programs at some of the country’s biggest companies fell apart in 2024, with signs that efforts to reverse DEI initiatives will only ramp up in 2025.