The driver uses the netdev interface. Due to the limited
capabilities of the transceiver (32 byte FIFO and no source address in the layer2 frame),
it relies on 6LowPAN compression and adds the source address to the frame for that.
The SI1133 from Silicon Labs is a UV Index Sensor and Ambient Light
Sensor in a small 2x2 mm DFN package. The sensor can measure
independently ultra violet (UV) light, infra red (IR) light and
ambient light, however the ambient light is also influenced by the
IR light requiring compensation from the IR readings.
The SI1133 is quite different from other Silicon Labs chips in RIOT OS
and therefore needs its own driver. In particular, the SI1133 has 7
different photodiode configurations to read but only 6 channels to
read them in parallel so only some channels can be read each time.
This patch implements a new driver allowing to read the data directly
and a saul interface for the three kinds of light source. There are
many configuration options including interrupts and continous modes
that are left out of this initial driver.
In analogy to the existing GPIO mappings, this provides (write-only)
SAUL entries for PWM'd LEDs in a single-LED (as SAUL_ACT_DIMMER) and an
RGB (as SAUL_ACT_RGB_LED) mode.
Co-authored-by: Marian Buschsieweke <marian.buschsieweke@ovgu.de>
Make sure to de-init the SPI bus before using the pins as GPIO.
Once all archs implement periph_spi_reconfigure, we can drop mosi,
miso and clk pins from the `card->params` and just use the bus
getter functions.
The EDBG debugger on the `samr21-xpro` contains a unique 64 bit address
intended to be used as a MAC address for the internal radio.
This adds a driver to read that EUI-64 from the debugger, it should match
with the MAC address printed on the label on the board.
sdcard_spi is the only driver in auto_init_storage and was previously
pulled in by fatsfs (because it's used on SD cards)
It does however make much more sense if the SD card driver pulls that in
so other file systems can be used on SD card too.
MRF24J40 supports a proprietary turbo mode with a data rate of 625 kbit/s
instead of the standard 250 kbit/s.
It can be enabled through
ifconfig 7 set high_rate 1
AT86RF2xx supports high data rates in O-QPSK mode.
This is a proprietary feature, so data rates > 0 are only supported by
other AT86RF2xx devices.
high_rate 0: 250 kbit/s (IEEE mode)
high_rate 1: 500 kbit/s
high_rate 2: 1000 kbit/s (compatible with at86rf215)
high_rate 3: 2000 kbit/s
drivers/at25xxx: add mtd_wrapper as submodule
tests: add mtd_at25xxx test module for mtd wrapper
drivers/Makefile.dep: add at25xxx dep for mtd_at25xxx module
