Merge pull request #1626 from kattni/neokey-snap

Adding NeoKey Snap code.

Author: ladyada

NeoKey_5x6_Ortho_Snap-Apart/2x4_NeoPixel_demo/code.py

@@ -0,0 +1,36 @@
+"""
+NeoKey 4x2 Ortho Snap-Apart simple key press NeoPixel demo.
+"""
+import board
+import keypad
+import neopixel
+
+COLUMNS = 2
+ROWS = 4
+
+pixels = neopixel.NeoPixel(board.D5, 30, brightness=0.3)
+
+keys = keypad.KeyMatrix(
+    row_pins=(board.D4, board.A3, board.A2, board.A1),
+    column_pins=(board.D13, board.D12),
+    columns_to_anodes=False,
+)
+
+
+def key_to_pixel_map(key_number):
+    row = key_number // COLUMNS
+    column = (key_number % COLUMNS)
+    if row % 2 == 1:
+        column = COLUMNS - column - 1
+    return row * COLUMNS + column
+
+
+pixels.fill((0, 0, 0))  # Begin with pixels off.
+while True:
+    key_event = keys.events.get()
+    if key_event:
+        print(key_event)
+        if key_event.pressed:
+            pixels[key_to_pixel_map(key_event.key_number)] = (255, 0, 0)
+        else:
+            pixels.fill((0, 0, 0))

NeoKey_5x6_Ortho_Snap-Apart/Full_sheet_NeoPixel_demo/code.py

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+"""
+NeoKey 5x6 Ortho Snap-Apart simple key press NeoPixel demo.
+"""
+import board
+import keypad
+import neopixel
+
+COLUMNS = 6
+ROWS = 5
+
+pixels = neopixel.NeoPixel(board.D5, 30, brightness=0.3)
+
+keys = keypad.KeyMatrix(
+    row_pins=(board.D4, board.A3, board.A2, board.A1, board.A0),
+    column_pins=(board.D13, board.D12, board.D11, board.D10, board.D9, board.D6),
+    columns_to_anodes=False,
+)
+
+
+def key_to_pixel_map(key_number):
+    row = key_number // COLUMNS
+    column = (key_number % COLUMNS)
+    if row % 2 == 1:
+        column = COLUMNS - column - 1
+    return row * COLUMNS + column
+
+
+pixels.fill((0, 0, 0))  # Begin with pixels off.
+while True:
+    key_event = keys.events.get()
+    if key_event:
+        print(key_event)
+        if key_event.pressed:
+            pixels[key_to_pixel_map(key_event.key_number)] = (255, 0, 0)
+        else:
+            pixels.fill((0, 0, 0))

NeoKey_5x6_Ortho_Snap-Apart/Ortho5x6Demo/.feather_rp2040.test.only

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+#include <Adafruit_NeoPixel.h>
+#include "Adafruit_Keypad.h"
+
+#define ROWS 5 // rows
+#define COLS 6 // columns
+
+#define NEOPIXEL_PIN 7
+#define NUM_PIXELS (ROWS * COLS)
+
+Adafruit_NeoPixel strip = Adafruit_NeoPixel(NUM_PIXELS, NEOPIXEL_PIN, NEO_GRB + NEO_KHZ800);
+
+
+//define the symbols on the buttons of the keypads
+char keys[ROWS][COLS] = {
+  {'1','2','3','4','5','6'},
+  {'7','8','9','A','B','C'},
+  {'D','E','F','G','H','I'},
+  {'J','K','L','M','N','O'},
+  {'P','Q','R','S','T','U'}
+};
+
+uint8_t rowPins[ROWS] = {6, 29, 28, 27, 26}; //connect to the row pinouts of the keypad
+uint8_t colPins[COLS] = {13, 12, 11, 10, 9, 8}; //connect to the column pinouts of the keypad
+
+//initialize an instance of class NewKeypad
+Adafruit_Keypad customKeypad = Adafruit_Keypad( makeKeymap(keys), rowPins, colPins, ROWS, COLS);
+
+bool lit[ROWS*COLS] = {0};
+
+void setup() {
+  Serial.begin(115200);
+  //while (!Serial);
+  Serial.println("Ortho 5x6 keypad demo");
+  strip.begin();
+  strip.setBrightness(40);
+  strip.show(); // Initialize all pixels to 'off'
+
+  customKeypad.begin();
+  for (int i=0; i<ROWS*COLS; i++) {
+    lit[i] = false;
+  }
+}
+
+uint8_t j=0; // color ticker
+
+void loop() {
+  //Serial.println("Test NeoPixels");
+  customKeypad.tick();
+  
+  while(customKeypad.available()){
+    keypadEvent e = customKeypad.read();
+    Serial.print((char)e.bit.KEY);
+    if (e.bit.EVENT == KEY_JUST_PRESSED) {
+      Serial.println(" pressed");
+      uint8_t row = e.bit.ROW;
+      uint8_t col = e.bit.COL;
+      Serial.print("Row: "); Serial.print(row);
+      Serial.print(" col: "); Serial.print(col);
+      Serial.print(" -> ");
+      uint16_t keynum;
+      if (row % 2 == 0) { // even row
+        keynum = row * COLS + col;
+      } else { // odd row the neopixels go BACKWARDS!
+        keynum = row * COLS + (5 - col);
+      }
+      Serial.println(keynum);
+      lit[keynum] = !lit[keynum]; // invert neopixel status
+    }
+    else if(e.bit.EVENT == KEY_JUST_RELEASED) {
+      Serial.println(" released");
+    }
+  }
+
+  for(int i=0; i< strip.numPixels(); i++) {
+    if (lit[i]) {
+      strip.setPixelColor(i, Wheel(((i * 256 / strip.numPixels()) + j) & 255));
+    } else {
+      strip.setPixelColor(i, 0);
+    }
+  }
+  strip.show();
+  j++;
+  
+  delay(10);
+}
+
+
+// Input a value 0 to 255 to get a color value.
+// The colours are a transition r - g - b - back to r.
+uint32_t Wheel(byte WheelPos) {
+  if(WheelPos < 85) {
+   return strip.Color(WheelPos * 3, 255 - WheelPos * 3, 0);
+  } else if(WheelPos < 170) {
+   WheelPos -= 85;
+   return strip.Color(255 - WheelPos * 3, 0, WheelPos * 3);
+  } else {
+   WheelPos -= 170;
+   return strip.Color(0, WheelPos * 3, 255 - WheelPos * 3);
+  }
+}