From 5ab5face89bf471bfc3b340594263fda1fd4e1ef Mon Sep 17 00:00:00 2001
From: thirdr <ryan@pimoroni.com>
Date: Fri, 9 Aug 2024 13:43:49 +0100
Subject: [PATCH] Plasma 2350: new examples

---
 .../breakouts/trackball-breakout.py           | 57 +++++++++++++++++++
 micropython/examples/plasma_2350/buttons.py   | 16 ++++++
 micropython/examples/plasma_2350/rainbow.py   | 27 +++++++++
 micropython/examples/plasma_2350/rgb_led.py   | 15 +++++
 .../examples/plasma_2350/single_colour.py     | 22 +++++++
 5 files changed, 137 insertions(+)
 create mode 100644 micropython/examples/plasma_2350/breakouts/trackball-breakout.py
 create mode 100644 micropython/examples/plasma_2350/buttons.py
 create mode 100644 micropython/examples/plasma_2350/rainbow.py
 create mode 100644 micropython/examples/plasma_2350/rgb_led.py
 create mode 100644 micropython/examples/plasma_2350/single_colour.py

diff --git a/micropython/examples/plasma_2350/breakouts/trackball-breakout.py b/micropython/examples/plasma_2350/breakouts/trackball-breakout.py
new file mode 100644
index 0000000..c75b817
--- /dev/null
+++ b/micropython/examples/plasma_2350/breakouts/trackball-breakout.py
@@ -0,0 +1,57 @@
+import plasma
+from plasma import plasma2040
+from pimoroni_i2c import PimoroniI2C
+from breakout_trackball import BreakoutTrackball
+
+# SDA and SCL pins for the Tiny 2350 QW/ST connector
+PINS_PLASMA_2350 = {"sda": 20, "scl": 21, "baudrate": 100000}
+
+# Create an I2C instance and setup the trackball breakout
+i2c = PimoroniI2C(**PINS_PLASMA_2350)
+trackball = BreakoutTrackball(i2c)
+
+# Set how many LEDs you have
+NUM_LEDS = 100
+
+# APA102 / DotStar™ LEDs
+# led_strip = plasma.APA102(NUM_LEDS, 0, 0, plasma2040.DAT, plasma2040.CLK)
+
+# WS2812 / NeoPixel™ LEDs
+led_strip = plasma.WS2812(NUM_LEDS, 0, 0, plasma2040.DAT, rgbw=True)
+
+# Start updating the LED strip
+led_strip.start()
+
+# Clear any previously lit LEDs
+led_strip.clear()
+
+position = 0
+sensitivity = 1
+hue = 0.0
+
+while True:
+
+    # Read the trackball data
+    state = trackball.read()
+
+    # Increase/Decrease the number of LEDs lit when moving the trackball Up/Down
+    if state[BreakoutTrackball.UP] > sensitivity:
+        if position < NUM_LEDS:
+            position += 1
+    if state[BreakoutTrackball.DOWN] > sensitivity:
+        if position > 0:
+            position -= 1
+
+    # Change the hue when moving the trackball Left/Right
+    if state[BreakoutTrackball.LEFT] > sensitivity:
+        hue += 0.02
+    if state[BreakoutTrackball.RIGHT] > sensitivity:
+        hue -= 0.02
+
+    # Set the LEDs
+    for i in range(position):
+        led_strip.set_hsv(i, hue, 1.0, 1.0)
+
+    # Clear the LEDs we're not using at the moment
+    for i in range(position, NUM_LEDS):
+        led_strip.set_rgb(i, 0, 0, 0)
diff --git a/micropython/examples/plasma_2350/buttons.py b/micropython/examples/plasma_2350/buttons.py
new file mode 100644
index 0000000..7895798
--- /dev/null
+++ b/micropython/examples/plasma_2350/buttons.py
@@ -0,0 +1,16 @@
+import time
+import machine
+
+# Setup for the button pins
+user_button = machine.Pin(22, machine.Pin.IN)
+a_button = machine.Pin(12, machine.Pin.IN, machine.Pin.PULL_UP)
+
+while True:
+
+    if user_button.value() == 0:
+        print("USER BUTTON PRESSED!")
+
+    if a_button.value() == 0:
+        print("A BUTTON PRESSED!")
+
+    time.sleep(0.2)
diff --git a/micropython/examples/plasma_2350/rainbow.py b/micropython/examples/plasma_2350/rainbow.py
new file mode 100644
index 0000000..83f9eea
--- /dev/null
+++ b/micropython/examples/plasma_2350/rainbow.py
@@ -0,0 +1,27 @@
+import plasma
+from plasma import plasma2040
+import time
+
+# Set how many LEDs you have
+NUM_LEDS = 50
+
+# APA102 / DotStar™ LEDs
+# led_strip = plasma.APA102(NUM_LEDS, 0, 0, plasma2040.DAT, plasma2040.CLK)
+
+# WS2812 / NeoPixel™ LEDs
+led_strip = plasma.WS2812(NUM_LEDS, 0, 0, plasma2040.DAT)
+
+# Start updating the LED strip
+led_strip.start()
+
+offset = 0.0
+
+while True:
+
+    offset += float(10) / 2000.0
+
+    for i in range(NUM_LEDS):
+        hue = float(i) / NUM_LEDS
+        led_strip.set_hsv(i, offset, 1.0, 1.0)
+
+    time.sleep(1.0 / 60)
diff --git a/micropython/examples/plasma_2350/rgb_led.py b/micropython/examples/plasma_2350/rgb_led.py
new file mode 100644
index 0000000..88195fe
--- /dev/null
+++ b/micropython/examples/plasma_2350/rgb_led.py
@@ -0,0 +1,15 @@
+from pimoroni import RGBLED
+from time import sleep
+
+# Setup the RGB Led
+led = RGBLED(16, 17, 18)
+
+# Cycle through RGB
+
+while True:
+    led.set_rgb(255, 0, 0)
+    sleep(1)
+    led.set_rgb(0, 255, 0)
+    sleep(1)
+    led.set_rgb(0, 0, 255)
+    sleep(1)
diff --git a/micropython/examples/plasma_2350/single_colour.py b/micropython/examples/plasma_2350/single_colour.py
new file mode 100644
index 0000000..0566c99
--- /dev/null
+++ b/micropython/examples/plasma_2350/single_colour.py
@@ -0,0 +1,22 @@
+import plasma
+from plasma import plasma2040
+
+# Set how many LEDs you have
+NUM_LEDS = 50
+
+# APA102 / DotStar™ LEDs
+# led_strip = plasma.APA102(NUM_LEDS, 0, 0, plasma2040.DAT, plasma2040.CLK)
+
+# WS2812 / NeoPixel™ LEDs
+led_strip = plasma.WS2812(NUM_LEDS, 0, 0, plasma2040.DAT)
+
+# Start updating the LED strip
+led_strip.start()
+
+# Set each LED in the strip
+for i in range(NUM_LEDS):
+    led_strip.set_rgb(i, 100, 0, 100)
+
+# We've told the LEDs which colour to display and now we just want to keep the program running!
+while True:
+    pass