diff options
| author | Damien George <damien.p.george@gmail.com> | 2016-03-16 13:37:39 +0000 |
|---|---|---|
| committer | Damien George <damien.p.george@gmail.com> | 2016-03-16 13:37:39 +0000 |
| commit | 2466cb67f831abef9425ec9c6b12cb8eeb8602b7 (patch) | |
| tree | ee51fffbd39e6de0ae858d02f6d0455fabdc2267 /docs/esp8266/quickref.rst | |
| parent | 3acaa28b52587bace3a4e8382fbf06ed6f6e4aaf (diff) | |
docs/esp8266: Update quick reference: i2c.readfrom and neopixel example.
Diffstat (limited to 'docs/esp8266/quickref.rst')
| -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 6f5913f1c..30359cd5c 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:: |