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| -rw-r--r-- | docs/esp8266/quickref.rst | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/docs/esp8266/quickref.rst b/docs/esp8266/quickref.rst index 6f5913f1c1..30359cd5c1 100644 --- a/docs/esp8266/quickref.rst +++ b/docs/esp8266/quickref.rst @@ -183,15 +183,15 @@ The I2C driver is implemented in software and works on all pins:: # construct an I2C bus i2c = I2C(scl=Pin(5), sda=Pin(4), freq=100000) + i2c.readfrom(0x3a, 4) # read 4 bytes from slave device with address 0x3a i2c.writeto(0x3a, '12') # write '12' to slave device with address 0x3a buf = bytearray(10) # create a buffer with 10 bytes i2c.writeto(0x3a, buf) # write the given buffer to the slave + i2c.readfrom(0x3a, 4, stop=False) # don't send a stop bit after reading i2c.writeto(0x3a, buf, stop=False) # don't send a stop bit after writing -Note that reading is not yet implemented. - OneWire driver -------------- @@ -227,7 +227,7 @@ NeoPixel driver Use the ``neopixel`` module:: from machine import Pin - import neopixel + from neopixel import NeoPixel pin = Pin(0, Pin.OUT) # set GPIO0 to output to drive NeoPixels np = NeoPixel(pin, 8) # create NeoPixel driver on GPIO0 for 8 pixels @@ -235,6 +235,7 @@ Use the ``neopixel`` module:: np.write() # write data to all pixels r, g, b = np[0] # get first pixel colour + import neopixel neopixel.demo(np) # run a demo For low-level driving of a NeoPixel:: |