kopia lustrzana https://github.com/pimoroni/pimoroni-pico
Badger2040: Create badger_os utils module.
Phil Howard
rodzic
0ab44ef10a
commit
5bd13a5cd1
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@ -0,0 +1,104 @@
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"""Keep track of app state in persistent flash storage."""
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import os
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import gc
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import machine
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import badger2040
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STATE_FILE = "appstate.txt"
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def get_battery_level():
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# Battery measurement
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vbat_adc = machine.ADC(badger2040.PIN_BATTERY)
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vref_adc = machine.ADC(badger2040.PIN_1V2_REF)
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vref_en = machine.Pin(badger2040.PIN_VREF_POWER)
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vref_en.init(machine.Pin.OUT)
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vref_en.value(0)
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# Enable the onboard voltage reference
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vref_en.value(1)
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# Calculate the logic supply voltage, as will be lower that the usual 3.3V when running off low batteries
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vdd = 1.24 * (65535 / vref_adc.read_u16())
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vbat = (
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(vbat_adc.read_u16() / 65535) * 3 * vdd
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) # 3 in this is a gain, not rounding of 3.3V
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# Disable the onboard voltage reference
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vref_en.value(0)
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# Convert the voltage to a level to display onscreen
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return vbat
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def get_disk_usage():
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# f_bfree and f_bavail should be the same?
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# f_files, f_ffree, f_favail and f_flag are unsupported.
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f_bsize, f_frsize, f_blocks, f_bfree, _, _, _, _, _, f_namemax = os.statvfs("/")
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f_total_size = f_frsize * f_blocks
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f_total_free = f_bsize * f_bfree
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f_total_used = f_total_size - f_total_free
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f_used = 100 / f_total_size * f_total_used
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f_free = 100 / f_total_size * f_total_free
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return f_total_size, f_used, f_free
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def state_app():
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try:
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with open(STATE_FILE, "r") as f:
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return f.readline().strip()
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except OSError:
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return None
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def state_launch():
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app = state_app()
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if app is not None:
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launch("_" + app)
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def state_delete():
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try:
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os.remove(STATE_FILE)
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except OSError:
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pass
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def state_save(title, *args):
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with open(STATE_FILE, "w") as f:
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f.write("{}\n".format(title))
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for arg in args:
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f.write("{}\n".format(arg))
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def state_load(title, *defaults):
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data = []
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try:
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with open(STATE_FILE, "r") as f:
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if f.readline().strip() != title:
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return defaults
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for default in defaults:
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t = type(default)
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if t is bool:
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data.append(f.readline().strip() == "True")
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else:
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data.append(t(f.readline().strip()))
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return data
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except OSError:
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return defaults
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def launch(file):
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for k in locals().keys():
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if k not in ("gc", "file", "machine"):
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del locals()[k]
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gc.collect()
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try:
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__import__(file[1:]) # Try to import _[file] (drop underscore prefix)
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except ImportError:
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__import__(file) # Failover to importing [_file]
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machine.reset() # Exit back to launcher
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@ -3,6 +3,7 @@ import sys
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import time
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import badger2040
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from badger2040 import WIDTH, HEIGHT
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import badger_os
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REAMDE = """
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@ -52,14 +53,6 @@ image = bytearray(int(296 * 128 / 8))
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current_image = 0
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show_info = True
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try:
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with open("appstate.txt", "r") as f:
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f.readline()
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current_image = int(f.readline().strip('\n'))
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show_info = f.readline().strip('\n') == "True"
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except OSError:
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pass
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# Draw an overlay box with a given message within it
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def draw_overlay(message, width, height, line_spacing, text_size):
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@ -127,28 +120,37 @@ if TOTAL_IMAGES == 0:
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display.update()
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sys.exit()
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if display.pressed_to_wake(badger2040.BUTTON_UP):
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if current_image > 0:
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current_image -= 1
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if display.pressed_to_wake(badger2040.BUTTON_DOWN):
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if current_image < TOTAL_IMAGES - 1:
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current_image += 1
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if display.pressed_to_wake(badger2040.BUTTON_A):
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show_info = not show_info
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if display.pressed_to_wake(badger2040.BUTTON_B) or display.pressed_to_wake(badger2040.BUTTON_C):
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display.pen(15)
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display.clear()
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draw_overlay("To add images connect Badger2040 to a PC, load up Thonny, and see readme.txt in images/", WIDTH - OVERLAY_BORDER, HEIGHT - OVERLAY_BORDER, OVERLAY_SPACING, 0.5)
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display.update()
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time.sleep(4)
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show_image(current_image)
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current_image, show_info = badger_os.state_load("image", 0, True)
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changed = not display.woken()
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# Tell launcher to relaunch this app on wake and record state
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with open("appstate.txt", "w") as f:
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f.write("image\n")
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f.write("{}\n{}\n".format(current_image, show_info))
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while True:
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if display.pressed(badger2040.BUTTON_UP):
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if current_image > 0:
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current_image -= 1
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changed = True
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if display.pressed(badger2040.BUTTON_DOWN):
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if current_image < TOTAL_IMAGES - 1:
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current_image += 1
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changed = True
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if display.pressed(badger2040.BUTTON_A):
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show_info = not show_info
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changed = True
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if display.pressed(badger2040.BUTTON_B) or display.pressed(badger2040.BUTTON_C):
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display.pen(15)
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display.clear()
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draw_overlay("To add images connect Badger2040 to a PC, load up Thonny, and see readme.txt in images/", WIDTH - OVERLAY_BORDER, HEIGHT - OVERLAY_BORDER, OVERLAY_SPACING, 0.5)
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display.update()
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print(current_image)
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time.sleep(4)
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changed = True
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# Halt the Badger to save power, it will wake up if any of the front buttons are pressed
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display.halt()
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if changed:
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badger_os.state_save("image", current_image, show_info)
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show_image(current_image)
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changed = False
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# Halt the Badger to save power, it will wake up if any of the front buttons are pressed
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display.halt()
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@ -1,11 +1,10 @@
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import gc
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import os
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import time
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import math
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import machine
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import badger2040
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from badger2040 import WIDTH
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import launchericons
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import badger_os
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# for e.g. 2xAAA batteries, try max 3.4 min 3.0
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MAX_BATTERY_VOLTAGE = 4.0
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@ -15,33 +14,18 @@ MIN_BATTERY_VOLTAGE = 3.2
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machine.freq(48000000)
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def launch(file):
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for k in locals().keys():
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if k not in ("gc", "file", "machine"):
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del locals()[k]
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gc.collect()
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try:
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__import__(file[1:]) # Try to import _[file] (drop underscore prefix)
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except ImportError:
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__import__(file) # Failover to importing [_file]
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machine.reset() # Exit back to launcher
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# Restore previously running app
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try:
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# Pressing A and C together at start quits app
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if badger2040.pressed_to_wake(badger2040.BUTTON_A) and badger2040.pressed_to_wake(badger2040.BUTTON_C):
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os.remove("appstate.txt")
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badger_os.state_delete()
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else:
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with open("appstate.txt", "r") as f:
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# Try to launch app
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launch("_" + f.readline().strip('\n'))
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badger_os.state_launch()
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except OSError:
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pass
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except ImportError:
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# Happens if appstate names an unknown app. Delete appstate and reset
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import os
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os.remove("appstate.txt")
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badger_os.state_delete()
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machine.reset()
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badger2040.clear_pressed_to_wake()
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@ -96,23 +80,6 @@ def map_value(input, in_min, in_max, out_min, out_max):
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return (((input - in_min) * (out_max - out_min)) / (in_max - in_min)) + out_min
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def get_battery_level():
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# Enable the onboard voltage reference
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vref_en.value(1)
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# Calculate the logic supply voltage, as will be lower that the usual 3.3V when running off low batteries
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vdd = 1.24 * (65535 / vref_adc.read_u16())
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vbat = (
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(vbat_adc.read_u16() / 65535) * 3 * vdd
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) # 3 in this is a gain, not rounding of 3.3V
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# Disable the onboard voltage reference
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vref_en.value(0)
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# Convert the voltage to a level to display onscreen
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return int(map_value(vbat, MIN_BATTERY_VOLTAGE, MAX_BATTERY_VOLTAGE, 0, 4))
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def draw_battery(level, x, y):
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# Outline
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display.thickness(1)
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@ -138,17 +105,7 @@ def draw_battery(level, x, y):
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def draw_disk_usage(x):
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# f_bfree and f_bavail should be the same?
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# f_files, f_ffree, f_favail and f_flag are unsupported.
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f_bsize, f_frsize, f_blocks, f_bfree, _, _, _, _, _, f_namemax = os.statvfs(
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"/")
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f_total_size = f_frsize * f_blocks
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f_total_free = f_bsize * f_bfree
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f_total_used = f_total_size - f_total_free
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f_used = 100 / f_total_size * f_total_used
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# f_free = 100 / f_total_size * f_total_free
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_, f_used, _ = badger_os.get_disk_usage()
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display.image(
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bytearray(
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@ -207,7 +164,9 @@ def render():
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display.rectangle(0, 0, WIDTH, 16)
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display.thickness(1)
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draw_disk_usage(90)
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draw_battery(get_battery_level(), WIDTH - 22 - 3, 3)
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vbat = badger_os.get_battery_level()
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bat = int(map_value(vbat, MIN_BATTERY_VOLTAGE, MAX_BATTERY_VOLTAGE, 0, 4))
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draw_battery(bat, WIDTH - 22 - 3, 3)
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display.pen(15)
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display.text("badgerOS", 3, 8, 0.4)
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@ -218,7 +177,7 @@ def launch_example(index):
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while button_a.value() or button_b.value() or button_c.value() or button_up.value() or button_down.value():
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time.sleep(0.01)
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try:
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launch(examples[(page * 3) + index][0])
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badger_os.launch(examples[(page * 3) + index][0])
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return True
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except IndexError:
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return False
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@ -52,3 +52,4 @@ copy_module(usermod_badger2040 ${CMAKE_CURRENT_LIST_DIR}/badge.py _badge)
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copy_module(usermod_badger2040 ${CMAKE_CURRENT_LIST_DIR}/help.py _help)
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copy_module(usermod_badger2040 ${CMAKE_CURRENT_LIST_DIR}/info.py _info)
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copy_module(usermod_badger2040 ${CMAKE_CURRENT_LIST_DIR}/qrgen.py _qrgen)
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copy_module(usermod_badger2040 ${CMAKE_CURRENT_LIST_DIR}/badger_os.py badger_os)
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@ -7,7 +7,7 @@
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namespace {
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struct Badger2040_WakeUpInit {
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Badger2040_WakeUpInit()
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: state(gpio_get_all() & (0x1f << 11)) // Record state of all the front buttons
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: state(gpio_get_all() & (0x1f << pimoroni::Badger2040::DOWN)) // Record state of front buttons
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{
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gpio_set_function(pimoroni::Badger2040::ENABLE_3V3, GPIO_FUNC_SIO);
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gpio_set_dir(pimoroni::Badger2040::ENABLE_3V3, GPIO_OUT);
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