From 50a6eca2ab0ac38e585ef7c38dd1d87afdca12c7 Mon Sep 17 00:00:00 2001
From: John Edgar Park <jp@jpixl.net>
Date: Mon, 11 Dec 2017 17:20:17 -0800
Subject: [PATCH] Initial commit

---
 FruitBox_Sequencer/main.py | 107 +++++++++++++++++++++++++++++++++++++
 1 file changed, 107 insertions(+)
 create mode 100644 FruitBox_Sequencer/main.py

diff --git a/FruitBox_Sequencer/main.py b/FruitBox_Sequencer/main.py
new file mode 100644
index 00000000..358260ea
--- /dev/null
+++ b/FruitBox_Sequencer/main.py
@@ -0,0 +1,107 @@
+# FruitBox Sequencer
+# for Adafruit Circuit Playground express
+# with CircuitPython
+
+from adafruit_circuitplayground.express import cpx
+import time
+
+# Change this number to adjust touch sensitivity threshold, 0 is default
+cpx.adjust_touch_threshold(600)
+
+bpm = 60  # quarter note beats per minute, change this to suit your tempo
+
+beat = 15 / bpm  # 16th note expressed as seconds
+
+WHITE = (30, 30, 30)
+RED = (90, 0, 0)
+YELLOW = (45, 45, 0)
+GREEN = (0, 90, 0)
+AQUA = (0, 45, 45)
+BLUE = (0, 0, 90)
+PURPLE = (45, 0, 45)
+BLACK = (0, 0, 0)
+
+cpx.pixels.brightness = 0.1  # set brightness value
+
+# The seven files assigned to the touchpads
+audiofiles = ["fB_bd_tek.wav", "fB_elec_hi_snare.wav", "fB_elec_cymbal.wav",
+              "fB_elec_blip2.wav", "fB_bd_zome.wav", "fB_bass_hit_c.wav",
+              "fB_drum_cowbell.wav"]
+
+stepAdvance = 0  # to count steps
+step = 0
+
+# sixteen steps in a sequence
+stepNote = [1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1]
+
+# step pixels
+stepPixel = [9, 8, 7, 6, 5, 4, 3, 2, 9, 8, 7, 6, 5, 4, 3, 2]
+
+# step colors
+stepCol = [WHITE, RED, YELLOW, GREEN, AQUA, BLUE, PURPLE, BLACK]
+
+def prog_mode(i):
+    cpx.play_file(audiofiles[i])
+    stepNote[step] = i
+    cpx.pixels[stepPixel[step]] = stepCol[stepNote[step]]
+    print("playing file " + audiofiles[i])
+
+
+while True:
+    # playback mode
+    if cpx.switch:  # switch is slid to the left, play mode
+
+        cpx.red_led = False
+
+        if cpx.button_a:
+            cpx.pixels.fill(GREEN)
+            time.sleep(.2)
+            cpx.pixels.fill(BLACK)
+
+        if cpx.button_b:
+            for i in range(16):
+                step = i
+                # light a pixel
+                cpx.pixels[stepPixel[i]] = stepCol[stepNote[i]]
+                cpx.pixels[stepPixel[i - 1]] = BLACK
+
+                # play a file
+                cpx.play_file(audiofiles[stepNote[i]])
+
+                # sleep a beat
+                time.sleep(beat)
+            cpx.pixels.fill(BLACK)
+
+    # beat programming mode
+    else:  # switch is slid to the right, record mode
+        cpx.red_led = True
+        if cpx.button_a:  # clear pixels, reset step to first step
+            cpx.pixels.fill(RED)
+            time.sleep(.2)
+            cpx.pixels.fill(BLACK)
+            cpx.pixels[9] = WHITE
+            step = 0
+            stepAdvance = 0
+
+        # press B button to advance neo pixel steps
+        if cpx.button_b:  # button has been pressed
+            stepAdvance += 1
+            step = stepAdvance % 16
+            cpx.play_file(audiofiles[stepNote[step]])
+            cpx.pixels[stepPixel[step]] = stepCol[stepNote[step]]
+            cpx.pixels[stepPixel[step - 1]] = BLACK
+
+        if cpx.touch_A1:
+            prog_mode(0)
+        if cpx.touch_A2:
+            prog_mode(1)
+        if cpx.touch_A3:
+            prog_mode(2)
+        if cpx.touch_A4:
+            prog_mode(3)
+        if cpx.touch_A5:
+            prog_mode(4)
+        if cpx.touch_A6:
+            prog_mode(5)
+        if cpx.touch_A7:
+            prog_mode(6)