Merge pull request #43 from makermelissa/master

Implemented set_digit_raw for 7 and 14 segment displays

Author: ladyada

adafruit_ht16k33/segments.py

@@ -215,6 +215,26 @@ def _number(self, number):
         self._text(string[:places])
         self._auto_write = auto_write
 
+    def set_digit_raw(self, index, bitmask):
+        """Set digit at position to raw bitmask value. Position should be a value
+        of 0 to 3 with 0 being the left most character on the display.
+
+        bitmask should be 2 bytes such as: 0xFFFF
+        If can be passed as an integer, list, or tuple
+        """
+        if not 0 <= index <= 3:
+            return
+
+        if isinstance(bitmask, (tuple, list)):
+            bitmask = bitmask[0] << 8 | bitmask[1]
+
+        # Set the digit bitmask value at the appropriate position.
+        self._set_buffer(index * 2, (bitmask >> 8) & 0xFF)
+        self._set_buffer(index * 2 + 1, bitmask & 0xFF)
+
+        if self._auto_write:
+            self.show()
+
 class Seg7x4(Seg14x4):
     """Numeric 7-segment display. It has the same methods as the alphanumeric display, but only
        supports displaying a limited set of characters."""
@@ -249,7 +269,7 @@ def _put(self, char, index=0):
         if char == '.':
             self._set_buffer(index, self._get_buffer(index) | 0b10000000)
             return
-        elif char in 'abcdef':
+        if char in 'abcdef':
             character = ord(char) - 97 + 10
         elif char == '-':
             character = 16
@@ -268,6 +288,19 @@ def _put(self, char, index=0):
             return
         self._set_buffer(index, NUMBERS[character])
 
+    def set_digit_raw(self, index, bitmask):
+        """Set digit at position to raw bitmask value. Position should be a value
+        of 0 to 3 with 0 being the left most digit on the display.
+        """
+        if not 0 <= index <= 3:
+            return
+
+        # Set the digit bitmask value at the appropriate position.
+        self._set_buffer(self.POSITIONS[index], bitmask & 0xFF)
+
+        if self._auto_write:
+            self.show()
+
 class BigSeg7x4(Seg7x4):
     """Numeric 7-segment display. It has the same methods as the alphanumeric display, but only
        supports displaying a limited set of characters."""

examples/ht16k33_segments_simpletest.py

@@ -12,7 +12,6 @@
 # Import the HT16K33 LED segment module.
 from adafruit_ht16k33 import segments
 
-
 # Create the I2C interface.
 i2c = busio.I2C(board.SCL, board.SDA)
 
@@ -40,3 +39,18 @@
 display[2] = 'A'
 # Set the forth character to 'B':
 display[3] = 'B'
+time.sleep(2)
+
+# Or, can even set the segments to make up characters
+if isinstance(display, segments.Seg7x4):
+    # 7-segment raw digits
+    display.set_digit_raw(0, 0xFF)
+    display.set_digit_raw(1, 0b11111111)
+    display.set_digit_raw(2, 0x79)
+    display.set_digit_raw(3, 0b01111001)
+else:
+    # 14-segment raw digits
+    display.set_digit_raw(0, 0x3F2D)
+    display.set_digit_raw(1, 0b0011111100101101)
+    display.set_digit_raw(2, (0b00111111, 0b00101101))
+    display.set_digit_raw(3, [0b00111111, 0b00101101])