From ab000a200fbc3c1253fb0ed6ae63db1c43e5edf0 Mon Sep 17 00:00:00 2001
From: David Thurstenson <thurstylark@gmail.com>
Date: Wed, 19 Oct 2022 12:36:37 -0500
Subject: [PATCH] Added rotary encoder example

---
 examples/rotary-encoder-stemma.py | 33 +++++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)
 create mode 100644 examples/rotary-encoder-stemma.py

diff --git a/examples/rotary-encoder-stemma.py b/examples/rotary-encoder-stemma.py
new file mode 100644
index 0000000..3bb24a0
--- /dev/null
+++ b/examples/rotary-encoder-stemma.py
@@ -0,0 +1,33 @@
+# Ref: https://learn.adafruit.com/adafruit-i2c-qt-rotary-encoder/python-circuitpython
+import board
+from adafruit_seesaw import seesaw, rotaryio, digitalio
+import busio
+
+SDA = board.GP0
+SCL = board.GP1
+i2c = busio.I2C(SCL, SDA)
+seesaw = seesaw.Seesaw(i2c, 0x36)
+
+seesaw.pin_mode(24, seesaw.INPUT_PULLUP)
+button = digitalio.DigitalIO(seesaw, 24)
+button_held = False
+
+encoder = rotaryio.IncrementalEncoder(seesaw)
+last_position = None
+
+while True:
+
+    # negate the position to make clockwise rotation positive
+    position = -encoder.position
+
+    if position != last_position:
+        last_position = position
+        print("Position: {}".format(position))
+
+    if not button.value and not button_held:
+        button_held = True
+        print("Button pressed")
+
+    if button.value and button_held:
+        button_held = False
+        print("Button released")
\ No newline at end of file