forked from Telos4/LoRa-Workshop
111 lines
3.0 KiB
Python
111 lines
3.0 KiB
Python
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from machine import Pin, SPI, reset
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from controller import Controller
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class ESP32Controller(Controller):
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# LoRa config
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PIN_ID_FOR_LORA_RESET = 14
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PIN_ID_FOR_LORA_SS = 18
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PIN_ID_SCK = 5
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PIN_ID_MOSI = 27
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PIN_ID_MISO = 19
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PIN_ID_FOR_LORA_DIO0 = 26
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PIN_ID_FOR_LORA_DIO1 = None
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PIN_ID_FOR_LORA_DIO2 = None
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PIN_ID_FOR_LORA_DIO3 = None
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PIN_ID_FOR_LORA_DIO4 = None
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PIN_ID_FOR_LORA_DIO5 = None
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# ESP config
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ON_BOARD_LED_PIN_NO = 2
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ON_BOARD_LED_HIGH_IS_ON = True
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GPIO_PINS = (0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11,
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12, 13, 14, 15, 16, 17, 18, 19, 21, 22,
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23, 25, 26, 27, 32, 34, 35, 36, 37, 38, 39)
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def __init__(self,
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pin_id_led = ON_BOARD_LED_PIN_NO,
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on_board_led_high_is_on = ON_BOARD_LED_HIGH_IS_ON,
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pin_id_reset = PIN_ID_FOR_LORA_RESET,
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blink_on_start = (2, 0.5, 0.5)):
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super().__init__(pin_id_led,
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on_board_led_high_is_on,
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pin_id_reset,
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blink_on_start)
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def prepare_pin(self, pin_id, in_out = Pin.OUT):
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if pin_id is not None:
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pin = Pin(pin_id, in_out)
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new_pin = Controller.Mock()
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new_pin.pin_id = pin_id
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new_pin.value = pin.value
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if in_out == Pin.OUT:
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new_pin.low = lambda : pin.value(0)
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new_pin.high = lambda : pin.value(1)
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else:
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new_pin.irq = pin.irq
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return new_pin
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def prepare_irq_pin(self, pin_id):
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pin = self.prepare_pin(pin_id, Pin.IN)
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if pin:
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pin.set_handler_for_irq_on_rising_edge = lambda handler: pin.irq(handler = handler, trigger = Pin.IRQ_RISING)
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pin.detach_irq = lambda : pin.irq(handler = None, trigger = 0)
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return pin
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def get_spi(self):
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spi = None
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try:
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spi = SPI(baudrate = 10000000, polarity = 0, phase = 0, bits = 8, firstbit = SPI.MSB,
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sck = Pin(self.PIN_ID_SCK, Pin.OUT, Pin.PULL_DOWN),
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mosi = Pin(self.PIN_ID_MOSI, Pin.OUT, Pin.PULL_UP),
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miso = Pin(self.PIN_ID_MISO, Pin.IN, Pin.PULL_UP))
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#spi.init()
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except Exception as e:
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print(e)
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if spi:
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spi.deinit()
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spi = None
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reset() # in case SPI is already in use, need to reset.
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return spi
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def prepare_spi(self, spi):
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if spi:
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new_spi = Controller.Mock()
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def transfer(pin_ss, address, value = 0x00):
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response = bytearray(1)
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pin_ss.low()
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spi.write(bytes([address]))
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spi.write_readinto(bytes([value]), response)
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pin_ss.high()
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return response
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new_spi.transfer = transfer
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new_spi.close = spi.deinit
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return new_spi
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def __exit__(self):
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self.spi.close()
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