# This example takes the temperature from the Pico's onboard temperature sensor, and displays it on Pico Explorer, along with a little pixelly graph.
# It's based on the thermometer example in the "Getting Started with MicroPython on the Raspberry Pi Pico" book, which is a great read if you're a beginner!
import machine
import utime
# Pico Explorer boilerplate
import picoexplorer as display
width = display.get_width()
height = display.get_height()
display_buffer = bytearray(width * height * 2)
display.init(display_buffer)
# reads from Pico's temp sensor and converts it into a more manageable number
sensor_temp = machine.ADC(4)
conversion_factor = 3.3 / (65535)
i = 0
while True:
# the following two lines do some maths to convert the number from the temp sensor into celsius
reading = sensor_temp.read_u16() * conversion_factor
temperature = round(27 - (reading - 0.706) / 0.001721)
# this if statement clears the display once the graph reaches the right hand side of the display
if i >= (width + 1):
i = 0
display.set_pen(0, 0, 0)
display.clear()
# chooses a pen colour based on the temperature
import time
import picoexplorer as explorer
width = explorer.get_width()
height = explorer.get_height()
display_buffer = bytearray(width * height * 2) # 2-bytes per pixel (RGB565)
explorer.init(display_buffer)
explorer.set_audio_pin(0)
i = 1
while True:
explorer.set_pen(120, 40, 60)
explorer.clear()
adc0 = int(explorer.get_adc(0) * 120)
adc1 = int(explorer.get_adc(1) * 120)
adc2 = int(explorer.get_adc(2) * 120)
explorer.set_pen(255, 255, 255)
explorer.text("ADC0:", 20, 20, 100)
explorer.text("ADC1:", 20, 40, 100)
explorer.text("ADC2:", 20, 60, 100)
explorer.set_pen(adc0 * 2, 0, 0)
explorer.circle(90 + adc0, 26, 10)
explorer.set_pen(0, adc1 * 2, 0)
## This example borrows a CircuitPython hsv_to_rgb function to cycle through some rainbows on Pico Explorer's screen and RGB LED . If you're into rainbows, HSV (Hue, Saturation, Value) is very useful!
import utime
import picoexplorer as display
# Set up and initialise Pico Explorer
buf = bytearray(display.get_width() * display.get_height() * 2)
display.init(buf)
# From CPython Lib/colorsys.py
def hsv_to_rgb(h, s, v):
if s == 0.0:
return v, v, v
i = int(h * 6.0)
f = (h * 6.0) - i
p = v * (1.0 - s)
q = v * (1.0 - s * f)
t = v * (1.0 - s * (1.0 - f))
i = i % 6
if i == 0:
return v, t, p
if i == 1:
return q, v, p
if i == 2:
return p, v, t
if i == 3:
return p, q, v
if i == 4:
return t, p, v
if i == 5:
# Simple oscilloscope for a Raspberry Pi Pico
# Press the buttons to toggle the traces
# Designed for use with an pcio explorer board
import picoexplorer as display
import machine
import utime
# set up screen buffer and ADC
WIDTH = display.get_width()
HEIGHT = display.get_height()
display_buffer = bytearray(WIDTH * HEIGHT * 2)
display.init(display_buffer)
# Clear screen and draw title
display.set_pen(0, 0, 0)
display.clear()
display.set_pen(255, 0, 0)
display.text("PicoScope", 0, 0, 0, 2)
# Get 4 channels of Analogue to Digital converters
adc = []
for i in range(4):
adc.append(machine.ADC(i))
# Colours to display each ADC chanenl
colors = [
(255, 0, 0), # Red, channel 0
(0, 255, 0), # Green, channel 1
(0, 0, 255), # Blue, channel 2
(0, 255, 255)
] # Cyan channel 3
# This example shows you how you can use Pico Explorer's onboard buzzer as a speaker to play different notes and string them together into a bleepy tune.
# It uses code written by Avram Piltch - check out his Tom's Hardware article! https://www.tomshardware.com/uk/how-to/buzzer-music-raspberry-pi-pico
# You'll need to connect a jumper wire between GPO and AUDIO on the Explorer Base to hear noise.
import utime
import picoexplorer as explorer
# Set up and initialise Pico Explorer
buf = bytearray(explorer.get_width() * explorer.get_height() * 2)
explorer.init(buf)
# tells Pico Explorer which pin you'll be using for noise
explorer.set_audio_pin(0)
# this handy list converts notes into frequencies, which you can use with the explorer.set_tone function
tones = {
"B0": 31,
"C1": 33,
"CS1": 35,
"D1": 37,
"DS1": 39,
"E1": 41,
"F1": 44,
"FS1": 46,
"G1": 49,
"GS1": 52,
"A1": 55,
"AS1": 58,
"B1": 62,
"C2": 65,
"CS2": 69,
import time, random
import picoexplorer as explorer
# set up screem
WIDTH = explorer.get_width()
HEIGHT = explorer.get_height()
display_buffer = bytearray(WIDTH * HEIGHT * 2) # 2-bytes per pixel (RGB565)
explorer.init(display_buffer)
# main loop (forever)
while True:
# clear screen and display controle
explorer.set_pen(0, 0, 0)
explorer.rectangle(0, 0, WIDTH, HEIGHT)
explorer.set_pen(0, 0, 255)
explorer.text("A/B Motor 1", 0, 0, WIDTH, 4)
explorer.text("X/Y Motor 2", 0, 50, WIDTH, 4)
# Press A/B to control motor 1
if explorer.is_pressed(explorer.BUTTON_A):
explorer.set_motor(0, 0, 1)
explorer.text("Motor 1 Forwards", 0, 100, WIDTH, 2)
elif explorer.is_pressed(explorer.BUTTON_B):
explorer.set_motor(0, 1, 1)
explorer.text("Motor 1 Backwards", 0, 100, WIDTH, 2)
else:
explorer.set_motor(0, 0, 0)
# Press X/Y to control motor 2
if explorer.is_pressed(explorer.BUTTON_X):
explorer.set_motor(1, 0, 1)
import time, random import picoexplorer as exp from machine import Pin width = exp.get_width() height = exp.get_height() display_buffer = bytearray(width * height * 2) # 2-bytes per pixel (RGB565) exp.init(display_buffer) #exp.set_backlight(1.0) exp.set_audio_pin(0) green = exp.create_pen(0, 155, 0) red = exp.create_pen(155, 0, 0) blue = exp.create_pen(0, 0, 155) yellow = exp.create_pen(155, 155, 0) lit_green = exp.create_pen(0, 255, 0) lit_red = exp.create_pen(255, 0, 0) lit_blue = exp.create_pen(0, 0, 255) lit_yellow = exp.create_pen(255, 255, 0) white = exp.create_pen(200, 200, 200) black = 0 buttons = ["A", "B", "Y", "X"] half_width = width // 2 half_height = height // 2 leda = Pin(4, Pin.OUT) ledy = Pin(3, Pin.OUT) ledx = Pin(2, Pin.OUT) ledb = Pin(5, Pin.OUT)
def __init__(self):
AbstractPlotter.__init__(self)
width = display.get_width()
height = display.get_height()
self._display_buffer = bytearray(width * height * 2)
display.init(self._display_buffer)
