Zyklop/AzureSphereLedLibs

Led Libraries for Azure Sphere

AzureSphereLedLibs

Led driver libraries for Azure Sphere

Supported Features

• Driving Rgb-Leds and and simple rgb-led strips with PWM
• Driving Apa102 and similar leds using SPI

Wiring

Single rgb led

1. Connect the color channels to 3 pwm-enabled gpio pins
2. Connect the leds ground to a ground pin

Rgb led strip

1. Connect 3 pwm enabled gpio-pins to your booster circuit
2. Connect the boosters output to your led-strip
3. Connect the boosters positive input to a power-supply
4. Connect the the boosters ground to the power supply and to the Sphere's ground

Apa 102 leds

1. Connect the SPI-CLK pin to the led's CI connection
2. Connect the SPI-MOSI pin to the led's DI connection
3. Connect the led's 5v to a power supply
4. Connect the led's GND to the power supply and to Sphere's GND pin

Usage

Use the provided samples or start from scratch

Pwm

1. Find the controller_id and the ids of the pins you connected to
2. Add "Pwm": [ "PWM-CONTROLLER-{yourControllerId}" ] to the applications manifest capabilities
3. Add the setup and teardow methods:

SetupPwm(unsigned int controller_id, uint32_t redPin, uint32_t greenPin, uint32_t bluePin);
Teardown();

4. Set the desired color by using the color-srtruct or by setting the values directly

SetColor(struct Color color);
SetColorFromInt(int red, int green, int blue);
SetColorFromBytes(uint8_t red, uint8_t green, uint8_t blue);

Apa 102

1. Find the interface_id and the chipselct_id of the interface you used
2. Add "SpiMaster": [ "ISU{interface_id}" ] to the applications manifest capabilities
3. Add the setup and teardow methods:

SetupApa102(int interfaceId, int chipSelectId);
Teardown();

4.1. Set the whole strip to a solid color: SetSolid(struct ColorWithBrightness color, int length);

4.2. Set the whole strip to custom colors: SetCustom(struct ColorWithBrightness *color, int length);

4.3. Stream colors to the leds, from the first to the last:

PrepareForStreaming();
while(?)
{
  AppendColor(struct ColorWithBrightness color);
}
FinishStreaming();