Mini HID Keypad

prusaprinters

<p>Mini Keypad used as HID for computer. Customize to work with any computer. For a complete listing of character maps, do a simple search for "ASCII character map"</p> <h3>Print instructions</h3><p>Only requirements are an Arduino Pro Micro (I used a clone board from Amazon -- HiLetgo 3pcs Pro Micro Atmega32U4 5V 16MHz)</p> <p>You will also need some LEDs (rectangular white 3v, 20mA from Amazon -- Chanzon 100 pcs 2x5x7 mm White LED Diode Lights)</p> <p>Tactile switches (again from Amazon --Cylewet 25Pcs 12x12x7.3mm Momentary Tact Tactile Push Button Switch)</p> <p>20ga hookup wire required, choose your own</p> <p>100ohm Resistors (this will change if you use a different color LED)</p> <p>Wiring instructions-- solder everything once you test that the code works for what you want it to do.</p> <p>Wire all LEDs in parallel with resistor on the Anode (+, or the long one), connect all resistors to one lead, and connect that to the 5V pin on the Arduino.</p> <p>Wire all LED cathodes (-, or the short one) together along with one side of each of the switches together, and connect to one lead and connect that to the GND pin on the Arduino.</p> <p>All switches connected to pins 2, 3, 4, 5, 6, &amp; 7. When pressed it should connect the ground to the pins.</p> <p>Arduino code follows:</p> <p>/*</p> <ul> <li>MiniKeyPad</li> <li>29 AUG 2019<br/> */</li> </ul> <h3>include &lt;Keyboard.h&gt;</h3> <p>//---------------------------------------------------------<br/> // Setup<br/> //---------------------------------------------------------</p> <p>void setup() {<br/> pinMode(2,INPUT_PULLUP); // sets pin 2 to input &amp; pulls it high w/ internal resistor<br/> pinMode(3,INPUT_PULLUP); // sets pin 3 to input &amp; pulls it high w/ internal resistor<br/> pinMode(4,INPUT_PULLUP); // sets pin 4 to input &amp; pulls it high w/ internal resistor<br/> pinMode(5,INPUT_PULLUP); // sets pin 5 to input &amp; pulls it high w/ internal resistor<br/> pinMode(6,INPUT_PULLUP); // sets pin 6 to input &amp; pulls it high w/ internal resistor<br/> pinMode(7,INPUT_PULLUP); // sets pin 7 to input &amp; pulls it high w/ internal resistor</p> <p>Serial.begin(9600); // begin serial for debugging</p> <p>}</p> <p>//---------------------------------------------------------<br/> // Loop<br/> //---------------------------------------------------------</p> <p>void loop() {</p> <p>Keyboard.begin(); //begin keyboard<br/> if (digitalRead(2) == 0) // if buton 2 is pushed - Emulates Spotlight Search<br/> {<br/> // For a single keypress use press() and release()<br/> Keyboard.press(KEY_LEFT_GUI); // Presses the Mac Command key<br/> Keyboard.press((char) 32); // Presses the space key<br/> Keyboard.releaseAll();<br/> delay(200); // delay to emulate short press<br/> }<br/> else if (digitalRead(3) == 0) // if button 3 is pressed - Emulates Window Select<br/> {<br/> Keyboard.press(KEY_LEFT_GUI);<br/> Keyboard.press((char) 0x09); // Presses the TAB key<br/> Keyboard.releaseAll();</p> <pre><code>delay(300); </code></pre> <p>}<br/> else if (digitalRead(4) == 0) // if button 4 is pressed - Emulates Save Function<br/> {<br/> Keyboard.press(KEY_LEFT_GUI); // Presses the z key<br/> Keyboard.press('s');<br/> Keyboard.releaseAll();</p> <pre><code>delay(300); </code></pre> <p>}<br/> else if (digitalRead(5) == 0) // if button 5 is pressed - Emulates Redo Function<br/> {<br/> Keyboard.press(KEY_LEFT_GUI);<br/> Keyboard.press(KEY_LEFT_SHIFT);<br/> Keyboard.press('z'); // Presses the z key<br/> Keyboard.releaseAll();</p> <pre><code>delay(300); </code></pre> <p>}<br/> else if (digitalRead(6) == 0) // if button 6 is pressed - Emulates Find Function<br/> {<br/> Keyboard.press(KEY_LEFT_GUI);<br/> Keyboard.press('f'); // Presses the f key<br/> Keyboard.releaseAll();</p> <pre><code>delay(300); </code></pre> <p>}<br/> else if (digitalRead(7) == 0) // if button 7 is pressed - Emulates Undo Function<br/> {<br/> Keyboard.press(KEY_LEFT_GUI); // Presses the shift key<br/> Keyboard.press('z'); // Presses the z key<br/> Keyboard.releaseAll();</p> <pre><code>delay(300); </code></pre> <p>}<br/> Keyboard.end(); //stops keybord<br/> }</p>