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Expose GPIO commands from nina-fw in ESP_SPIcontrol class #38

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Merged
merged 3 commits into from
Apr 25, 2019
Merged

Expose GPIO commands from nina-fw in ESP_SPIcontrol class #38

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98cfc0e
Add set_esp_debug command to enable debugging on the ESP32.
cpforbes Apr 22, 2019
c713122
Add commands for setting GPIO pins.
cpforbes Apr 23, 2019
fcf5feb
Fix pylint complaints.
cpforbes Apr 23, 2019
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55 changes: 55 additions & 0 deletions adafruit_esp32spi/adafruit_esp32spi.py
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Original file line number Diff line number Diff line change
Expand Up @@ -54,6 +54,7 @@
# pylint: disable=bad-whitespace
_SET_NET_CMD = const(0x10)
_SET_PASSPHRASE_CMD = const(0x11)
_SET_DEBUG_CMD = const(0x1A)

_GET_CONN_STATUS_CMD = const(0x20)
_GET_IPADDR_CMD = const(0x21)
Expand Down Expand Up @@ -87,6 +88,10 @@
_SET_ENT_PASSWD_CMD = const(0x4C)
_SET_ENT_ENABLE_CMD = const(0x4F)

_SET_PIN_MODE_CMD = const(0x50)
_SET_DIGITAL_WRITE_CMD = const(0x51)
_SET_ANALOG_WRITE_CMD = const(0x52)

_START_CMD = const(0xE0)
_END_CMD = const(0xEE)
_ERR_CMD = const(0xEF)
Expand Down Expand Up @@ -611,3 +616,53 @@ def socket_close(self, socket_num):
resp = self._send_command_get_response(_STOP_CLIENT_TCP_CMD, self._socknum_ll)
if resp[0][0] != 1:
raise RuntimeError("Failed to close socket")

def set_esp_debug(self, enabled):
"""Enable/disable debug mode on the ESP32. Debug messages will be
written to the ESP32's UART."""
resp = self._send_command_get_response(_SET_DEBUG_CMD, ((bool(enabled),),))
if resp[0][0] != 1:
raise RuntimeError("Failed to set debug mode")

def set_pin_mode(self, pin, mode):
"""
Set the io mode for a GPIO pin.

:param int pin: ESP32 GPIO pin to set.
:param value: direction for pin, digitalio.Direction or integer (0=input, 1=output).
"""
if mode == Direction.OUTPUT:
pin_mode = 1
elif mode == Direction.INPUT:
pin_mode = 0
else:
pin_mode = mode
resp = self._send_command_get_response(_SET_PIN_MODE_CMD,
((pin,), (pin_mode,)))
if resp[0][0] != 1:
raise RuntimeError("Failed to set pin mode")

def set_digital_write(self, pin, value):
"""
Set the digital output value of pin.

:param int pin: ESP32 GPIO pin to write to.
:param bool value: Value for the pin.
"""
resp = self._send_command_get_response(_SET_DIGITAL_WRITE_CMD,
((pin,), (value,)))
if resp[0][0] != 1:
raise RuntimeError("Failed to write to pin")

def set_analog_write(self, pin, analog_value):
"""
Set the analog output value of pin, using PWM.

:param int pin: ESP32 GPIO pin to write to.
:param float value: 0=off 1.0=full on
"""
value = int(255 * analog_value)
resp = self._send_command_get_response(_SET_ANALOG_WRITE_CMD,
((pin,), (value,)))
if resp[0][0] != 1:
raise RuntimeError("Failed to write to pin")