131 lines
4.8 KiB
Python
131 lines
4.8 KiB
Python
# SPDX-License-Identifier: LGPL-3.0-or-later
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# Copyright (C) 2021 Francesco Gazzetta
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"""Beacon application
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~~~~~~~~~~~~~~~~~~~~~
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Flash the relatively powerful HRS LED repeatedly, mostly for signaling purposes.
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Frequency and intensity can be changed.
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The blinking is handled by the HRS, so this app consumes very little power.
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With BLE and/or step counter disabled and blinking frequency set to the minimum,
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the watch's battery will last for many days.
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.. figure:: res/BeaconApp.png
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:width: 179
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"""
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import wasp
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import machine
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from micropython import const
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_ENABLE = const(0x01)
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_PDRIVER = const(0x0c)
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_ENABLE_HEN = const(0x80)
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_ENABLE_PDRIVE1 = const(0x08)
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_PDRIVER_PDRIVE0 = const(0x40)
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_ENABLE_HWT = const(0x70)
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class BeaconApp():
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NAME = "Beacon"
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# 2-bit RLE, 96x64, generated from res/beacon_icon.png, 336 bytes
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ICON = (
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b'\x02'
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b'`@'
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b'?\xff\x11@\xfcB?\x1dB\x80z\x82B?\x1aA'
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b'\x86A?\x18A\x88A?\t\xc0\x18\xc3\nA\x8aA'
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b'\n\xc3=\xc5\x04N\x04\xc5?\x06\xc3\x02A\xcaA\x02'
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b'\xc3?\x10A\xcaA?\x08\xcb\x02A\xc3@\x1eD\xc3'
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b'\x80\xfc\x81\x02\xcc9\xcb\x01\x81\xc4D\xc4\x81\x01\xcc?'
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b'\x06\x81\xcc\x81?\x0f\xc3\x01\x81\xcc\x81\x01\xc3?\x06\xc5'
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b'\x04\x8e\x04\xc5=\xc3\t\x81\xc0z\xcc\x81\t@\x18C'
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b'?\x07\x81\xcc\x81?\x12\x81\xce\x81?\x11\x81\xce\x81?'
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b'\x11\x81\xce\x81?\x11\x81\xce\x81?\x11\x81\xce\x81?\x11'
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b'\x81\xce\x81?\x11\x81\xce\x81?\x10\x81\xd0\x81?\x0f\x81'
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b'\xd0\x81?\x0f\x92?\x0f\x81\x80\x81\x90\xc0\xfc\xc1?\x0f'
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b'\xc1\x90\xc1?\x0f\xc1\x90\xc1?\x0e\xc1\x92\xc1?\r\xc1'
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b'\x92\xc1?\r\xc1\x92\xc1?\r\xc1\x92\xc1?\r\xc1\x92'
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b'\xc1?\r\xc1\x92\xc1?\r\xc1\x92\xc1?\x0c\xc1\x94\xc1'
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b'?\x0b\xd6?\x0b\xc1@zT\xc1?\x0b\xc1T\xc1?'
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b'\x0b\xc1T\xc1?\x0b\xc1T\xc1?\n\xc1V\xc1?\t'
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b'\xc1V\xc1?\t\xc1V\xc1?\t\xc1V\xc1?\t\xc1'
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b'V\xc1?\t\xc1V\xc1?\t\xc1V\xc1?\x08\xda?'
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b'\x07\xc1\x98\xc1?\x07\xc1\x98\xc1?\x07\xc1\x98\xc1?\x07'
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b'\xc1\x98\xc1?\x07\xc1\x98\xc1?\x06\xc1\x9a\xc1?\x05\xc1'
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b'\x9a\xc1?\x05\xc1\x9a\xc1?\x05\xdc?\xff\x04'
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)
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def __init__(self):
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self._checkbox = wasp.widgets.Checkbox(10, 45, "Enable beacon")
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self._slider_current = wasp.widgets.Slider(4, 10, 110, 0x27e4)
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self._slider_wait_time = wasp.widgets.Slider(8, 10, 180)
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self._reg_enable = 0x00 # off, 800ms, part of 12.5mA
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self._reg_pdriver = 0x2e #0x4e # part of 12.5mA, PON=1, magic
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def foreground(self):
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wasp.system.bar.clock = True
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self._draw()
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wasp.system.request_event(wasp.EventMask.TOUCH)
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def _draw(self):
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draw = wasp.watch.drawable
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draw.fill()
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wasp.system.bar.draw()
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self._checkbox.draw()
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draw.string("Intensity:", 10, 85)
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self._slider_current.draw()
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draw.string("Frequency:", 10, 155)
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self._slider_wait_time.draw()
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self._update()
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def touch(self, event):
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updated = self._checkbox.touch(event)
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if event[2] >= 180:
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updated |= self._slider_wait_time.touch(event)
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elif event[2] >= 110:
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updated |= self._slider_current.touch(event)
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self._update()
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if updated:
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if self._checkbox.state:
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self._enable_led()
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else:
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self._disable_led()
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def _update(self):
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wasp.system.bar.update()
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self._checkbox.update()
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self._slider_current.update()
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self._slider_wait_time.update()
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# Draw a dashed line representing intensity and frequency
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# with thickness and separation of dashes
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draw = wasp.watch.drawable
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draw.fill(None, 10, 220, 227, 20)
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x = 10
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while x < 220:
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wasp.watch.drawable.fill(0x27e4, x, 227, 8, (self._slider_current.value + 1) * 3)
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x += (8 - self._slider_wait_time.value) * 8
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def _enable_led(self):
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self._reg_enable |= _ENABLE_HEN
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if self._slider_current.value % 2:
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self._reg_pdriver |= _PDRIVER_PDRIVE0
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else:
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self._reg_pdriver &= ~_PDRIVER_PDRIVE0
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if self._slider_current.value >> 1:
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self._reg_enable |= _ENABLE_PDRIVE1
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else:
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self._reg_enable &= ~_ENABLE_PDRIVE1
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self._reg_enable = (self._reg_enable & (~_ENABLE_HWT)) | (self._slider_wait_time.value << 4)
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wasp.watch.hrs.write_reg(_PDRIVER, self._reg_pdriver)
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#print("writing PDRIVER={:08b}".format(self._reg_pdriver))
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wasp.watch.hrs.write_reg(_ENABLE, self._reg_enable)
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#print("writing ENABLE={:08b}".format(self._reg_enable))
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def _disable_led(self):
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self._reg_enable &= ~_ENABLE_HEN
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wasp.watch.hrs.write_reg(_ENABLE, self._reg_enable)
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#print("writing ENABLE={:08b}".format(self._reg_enable))
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