Merge pull request #1587 from FoamyGuy/brightness_crank

Brightness rotary crank

Author: ladyada

Rotary_Trinkey_Brightness_Crank/3D_Model/rotary_trinkey_crank_box.scad

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+shaft_cutout = 6.2 + 1.7;
+
+Z_HEIGHT = 30;
+X_HEIGHT = 36;
+Y_HEIGHT = 38;
+THICKNESS = 1.5 * 2;
+
+USB_CUTOUT_Z = 20;
+USB_CUTOUT_X = 17;
+USB_CUTOUT_Y = 40;
+
+TAB_SIZE = 6;
+TAB_HEIGHT = 2;
+TAB_TOLERANCE = 0.1;
+
+USB_WALL_OFFSET = 1;
+
+/*
+difference(){
+    cube([X_HEIGHT, Y_HEIGHT, Z_HEIGHT], center=true);
+    translate([0,0,THICKNESS/2])
+    cube([X_HEIGHT-THICKNESS, Y_HEIGHT-THICKNESS, Z_HEIGHT], center=true);
+    
+    translate([10,-3,0])
+    rotate([0,90,0])
+    cylinder(r=shaft_cutout/2, h=40, center=true, $fn=30);
+    
+    translate([X_HEIGHT/2 - USB_CUTOUT_X/2 - THICKNESS/2 - USB_WALL_OFFSET,20,0])
+    cube([USB_CUTOUT_X, USB_CUTOUT_Y, USB_CUTOUT_Z], center=true);
+}*/
+
+
+/*
+translate([7.5,20.5 - 3,0])
+rotate([-90,0,-90])
+import("4964 Rotary Trinkey.stl");
+*/
+
+module close_tab(){
+    difference(){
+        cube([TAB_SIZE,TAB_SIZE,TAB_HEIGHT], center=true);
+        translate([1.5, 1.5, 0])
+        cube([TAB_SIZE,TAB_SIZE,TAB_HEIGHT+1], center=true);
+    }
+}
+
+
+module lid(){
+    cube([X_HEIGHT, Y_HEIGHT, THICKNESS/2], center=true);
+    
+    translate([
+        -X_HEIGHT/2 + 6/2 + THICKNESS/2 + TAB_TOLERANCE,
+        -Y_HEIGHT/2 + 6/2 + THICKNESS/2 + TAB_TOLERANCE,
+        THICKNESS/4 + 2/2
+    ])
+    close_tab();
+    
+    translate([
+        X_HEIGHT/2 - 6/2 - THICKNESS/2 - TAB_TOLERANCE,
+        Y_HEIGHT/2 - 6/2 - THICKNESS/2 - TAB_TOLERANCE,
+        THICKNESS/4 + 2/2
+    ])
+    rotate([0,0,180])
+    close_tab();
+    
+    translate([
+        X_HEIGHT/2 - 6/2 - THICKNESS/2 - TAB_TOLERANCE,
+        -Y_HEIGHT/2 + 6/2 + THICKNESS/2 + TAB_TOLERANCE,
+        THICKNESS/4 + 2/2
+    ])
+    rotate([0,0,90])
+    close_tab();
+    
+    translate([
+        -X_HEIGHT/2 + 6/2 + THICKNESS/2 + TAB_TOLERANCE,
+        Y_HEIGHT/2 - 6/2 - THICKNESS/2 - TAB_TOLERANCE,
+        THICKNESS/4 + 2/2
+    ])
+    rotate([0,0,270])
+    close_tab();
+}
+
+translate([0,0,16])
+//rotate([0,180,0])
+lid();
+
+//translate([0, Y_HEIGHT/2-1, 10])
+//cube([1,1,1], center=true);

Rotary_Trinkey_Brightness_Crank/3D_Model/rotary_trinkey_crank_box.scad.license

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+# SPDX-FileCopyrightText: 2021 Tim Cocks for Adafruit Industries
+# SPDX-License-Identifier: MIT

Rotary_Trinkey_Brightness_Crank/3D_Model/rotary_trinkey_crank_box.stl

@@ -0,0 +1,2 @@
+# SPDX-FileCopyrightText: 2021 Tim Cocks for Adafruit Industries
+# SPDX-License-Identifier: MIT

Rotary_Trinkey_Brightness_Crank/3D_Model/rotary_trinkey_crank_box.stl.license

@@ -0,0 +1,2 @@
+# SPDX-FileCopyrightText: 2021 Tim Cocks for Adafruit Industries
+# SPDX-License-Identifier: MIT

Rotary_Trinkey_Brightness_Crank/3D_Model/rotary_trinkey_crank_lid.stl

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+"""
+Rotary Trinkey gadget that forces you to crank the handle in order
+to keep the brightness up on your phone or tablet.
+"""
+
+import time
+import math
+import board
+import digitalio
+import rotaryio
+import usb_hid
+from adafruit_hid.consumer_control import ConsumerControl
+from adafruit_hid.consumer_control_code import ConsumerControlCode
+
+# how frequently we check the encoder value and apply brightness changes
+ACTION_INTERVAL = 3  # seconds
+
+# if encoder value increases at least this much
+# then brightness stays the same
+# if encoder value increases less than this
+# then brightness goes down
+STAY_EVEN_CHANGE_THRESHOLD = 60
+
+# if encoder value increases at least this much
+# then brightness goes up
+INCREASE_CHANGE_THRESHOLD = 95
+
+# timestamp of last time an action occurred
+LAST_ACTION_TIME = 0
+
+# encoder value variable
+CUR_VALUE = 0
+
+# pause state
+PAUSED = False
+
+cc = ConsumerControl(usb_hid.devices)
+
+encoder = rotaryio.IncrementalEncoder(board.ROTA, board.ROTB)
+switch = digitalio.DigitalInOut(board.SWITCH)
+switch.switch_to_input(pull=digitalio.Pull.DOWN)
+
+switch_state = None
+
+# previous encoder position variable
+last_position = encoder.position
+
+# previous switch variable
+prev_switch_value = False
+
+while True:
+    now = time.monotonic()
+
+    if switch.value and not prev_switch_value:
+        print("toggling pause")
+        PAUSED = not PAUSED
+
+        if not PAUSED:
+            LAST_ACTION_TIME = now
+
+    prev_switch_value = switch.value
+
+    # read current encoder value
+    current_position = encoder.position
+    position_change = int(current_position - last_position)
+
+    # positive change
+    if position_change > 0:
+        for _ in range(position_change):
+            CUR_VALUE += position_change
+
+    # negative change
+    elif position_change < 0:
+        for _ in range(-position_change):
+            # use absolute value to convert to positive
+            CUR_VALUE += int(math.fabs(position_change))
+
+    last_position = current_position
+
+    if not PAUSED:
+        # is it time for an action?
+        if now > LAST_ACTION_TIME + ACTION_INTERVAL:
+            print(CUR_VALUE)
+
+            # update previous time variable
+            LAST_ACTION_TIME = now
+
+            # less than stay even threshold
+            if CUR_VALUE < STAY_EVEN_CHANGE_THRESHOLD:
+                cc.send(ConsumerControlCode.BRIGHTNESS_DECREMENT)
+                print("brightness down")
+
+            # more than stay even threshold
+            elif CUR_VALUE < INCREASE_CHANGE_THRESHOLD:
+                print("stay even")
+
+            # more than increase threshold
+            else:
+                cc.send(ConsumerControlCode.BRIGHTNESS_INCREMENT)
+                print("brightness up")
+
+            # reset encoder value
+            CUR_VALUE = 0
+
+