From 1a0b03d991e9184fb4900a03ec5cd61d458047fe Mon Sep 17 00:00:00 2001
From: ABelliqueux <contact@arthus.net>
Date: Thu, 19 Dec 2024 07:25:50 +0100
Subject: [PATCH] Switch to rotary encoder

---
 mpdlisten.py | 90 ++++++++++++++++++++++++++++++++--------------------
 1 file changed, 56 insertions(+), 34 deletions(-)

diff --git a/mpdlisten.py b/mpdlisten.py
index ec5b287..e1ee1da 100755
--- a/mpdlisten.py
+++ b/mpdlisten.py
@@ -18,19 +18,18 @@ from luma.oled.device import ssd1306
 from PIL import Image, ImageDraw, ImageFont
 
 # Pot_cap
-import pigpio
-import pot_cap
-min_val = 8
-max_val = 298
-vol_mult = 100/(max_val-min_val)
-volume = 0
-v_1 = 0
-v_2 = 0
-ctrlc_pressed = False
-pot_cap_gpio = 23
-drain_ms = 0.8
-timeout_s = 1.0
-
+# ~ import pigpio
+# ~ import pot_cap
+# ~ min_val = 8
+# ~ max_val = 298
+# ~ vol_mult = 100/(max_val-min_val)
+# ~ volume = 0
+# ~ v_1 = 0
+# ~ v_2 = 0
+# ~ ctrlc_pressed = False
+# ~ pot_cap_gpio = 23
+# ~ drain_ms = 0.8
+# ~ timeout_s = 1.0
 
 jfont = ImageFont.truetype('DejaVuSansMono.ttf', 10)
 
@@ -46,6 +45,14 @@ GPIO.setmode(GPIO.BCM)
 RELAIS_1_GPIO = 17
 GPIO.setup(RELAIS_1_GPIO, GPIO.OUT) # GPIO Assign mode
 
+# Rotary encoder
+clk = 27
+dt = 22
+GPIO.setup(clk, GPIO.IN, pull_up_down=GPIO.PUD_DOWN)
+GPIO.setup(dt, GPIO.IN, pull_up_down=GPIO.PUD_DOWN)
+volume = 0
+clkLastState = GPIO.input(clk)
+
 # Buttons GPIO
 BTNS = { 'BTN_1' : dict(GPIO=7, state=1),
          'BTN_2' : dict(GPIO=8, state=1),
@@ -359,9 +366,9 @@ def main(args):
     ui_idle_for = 0
     # Pot_cap
     # Connect to Pi.
-    pi = pigpio.pi() 
+    # ~ pi = pigpio.pi() 
     # Instantiate Pot/Cap reader.
-    pc = pot_cap.reader(pi, pot_cap_gpio, drain_ms, timeout_s)
+    # ~ pc = pot_cap.reader(pi, pot_cap_gpio, drain_ms, timeout_s)
     start = time()
     
     previous_song_id = None
@@ -398,22 +405,37 @@ def main(args):
     static_ui = generate_static_ui(current_mode)
     while ctrlc_pressed is False:
         # pot_cap
-        global v_1
-        global v_2
-        global volume
-        s, v, r = pc.read()
-        if s and r < 4:
-            volume = round(v*vol_mult)
-            if (abs(volume - v_1) > 1) and (abs(volume - v_2) > 2):
-                print("Volume: {}".format(volume))
-                if volume < min_val:
-                    volume = 0
-                if volume > 100:
-                    volume = 100
-                client.setvol(100-volume)
-                ui_idle_for = 0
-            v_2 = v_1
-            v_1 = volume
+        # ~ global v_1
+        # ~ global v_2
+        global volume, clkLastState
+        # ~ s, v, r = pc.read()
+        # ~ if s and r < 4:
+            # ~ volume = round(v*vol_mult)
+            # ~ if (abs(volume - v_1) > 1) and (abs(volume - v_2) > 2):
+                # ~ print("Volume: {}".format(volume))
+                # ~ if volume < min_val:
+                    # ~ volume = 0
+                # ~ if volume > 100:
+                    # ~ volume = 100
+                # ~ client.setvol(100-volume)
+                # ~ ui_idle_for = 0
+            # ~ v_2 = v_1
+            # ~ v_1 = volume
+        # Rotary encoder
+        clkState = GPIO.input(clk)
+        dtState = GPIO.input(dt)
+        if clkState != clkLastState:
+            if dtState != clkState:
+                if volume < 100:
+                    volume += 1
+            else:
+                if volume > 0:
+                    volume -= 1
+            print(volume)
+            client.setvol(volume)
+            ui_idle_for = 0
+        clkLastState = clkState
+        # ~ sleep(0.01)
         # MPD
         mpd_status = client.status()
         if len(mpd_status):
@@ -470,9 +492,9 @@ def main(args):
             # Avoid further execution
             ui_idle_for = 11
             device.hide()
-    # pot_cap
-    pc.cancel() # Cancel the reader.
-    pi.stop()   # Disconnect from Pi.
+    # ~ # pot_cap
+    # ~ pc.cancel() # Cancel the reader.
+    # ~ pi.stop()   # Disconnect from Pi.
     
     device.cleanup()
     client.disconnect()