Raspberry Pi platform library for .NET

Library	NuGet
RaspberryDotNet.SystemInfo
RaspberryDotNet.BuildHat

🖥RaspberryDotNet.SystemInfo

VCIO

using var vcio = PlatformProvider.GetVcioMonitor();

// Temperature
if (!Double.IsNaN(vcio.Temperature))
{
    Console.WriteLine($"temp={vcio.Temperature:0.0}'C");
}

// Clock frequency
foreach (var clock in vcio.Clocks)
{
    Console.WriteLine($"frequency[{clock.Type.ToString().ToLowerInvariant()}]={clock.Frequency:0}");
}

// Voltage
foreach (var voltage in vcio.Voltages)
{
    Console.WriteLine($"volt[{voltage.Type.ToString().ToLowerInvariant()}]={voltage.Voltage:0.0000}V");
}

// Throttled
if (vcio.Throttled != ThrottledFlags.Unknown)
{
    Console.WriteLine($"throttled={vcio.Throttled}");
}

Link

• Prometheus Exporter alternative

GPIO

using var gpio = PlatformProvider.GetGpioMonitor();

Console.WriteLine("PHYS  SOC  FUNC  LEVEL");
Console.WriteLine("----  ---  ----  -----");
foreach (var p in gpio.Pins)
{
    Console.WriteLine($"{p.PhysicalPin,4}  {p.SocPin,3}  {p.Function,-4}  {p.Level,5}");
}

🧱RaspberryDotNet.BuildHat

using var hat = new BuildHatController();
hat.Open();

await hat.WaitForDeviceAsync(0, TimeSpan.FromSeconds(10));

// Motor
var motor = hat.GetMotor(0);
await motor.RunForDegreesAsync(360, 30);
await motor.RunToAbsolutePositionAsync(0, 50, BuildHatDirection.Shortest, BuildHatStopMode.Hold);

// Motor pair
var pair = hat.GetMotorPair(0, 2);
await pair.RunForDegreesAsync(360, 30, -30);

// Color & Distance Sensor
var sensor = hat.GetColorDistanceSensor(3);
Console.WriteLine($"color={await sensor.ReadColorAsync()}, distance={await sensor.ReadDistanceAsync()}");

Support	Devices	Tested
Motor	Technic Large / XL Motor, Technic Medium / Large Angular Motor, Small Angular Motor, Medium Linear Motor	✓
PassiveMotor	System Medium / Train / Turntable Motor, Technic Large / XL Motor (passive)	-
Light	Light	-
ColorDistanceSensor	Color & Distance Sensor	✓
ColorSensor	Color Sensor	-
DistanceSensor	Distance Sensor	-
ForceSensor	Force Sensor	-
LightMatrix	3x3 Color Light Matrix	-
TiltSensor	WeDo 2.0 Tilt Sensor	-
MotionSensor	WeDo 2.0 Motion Sensor	-
Generic (BuildHatPort)	Other active devices	-
Unsupported	Button and other passive devices	-

• Select / SelectMode / SelectCombi stream the data into Port.State.Values, and reads of the selected mode return the latest value immediately
• Enable the serial port and disable the serial login shell with raspi-config
• Events are raised on the receive thread
• The firmware of python-build-hat (MIT, Firmware/LICENSE.txt) is embedded and uploaded when needed

🌐Link

• MacDotNet
• LinuxDotNet
• RaspberryDotNet
• Disk information library

🔢PIN memo

Pin	Signal	BCM(GPIO)
1	3.3V	-
2	5V	-
3	SDA1 (I2C)	GPIO2
4	5V	-
5	SCL1 (I2C)	GPIO3
6	GND	-
7	GPIO	GPIO4
8	TXD0 (UART)	GPIO14
9	GND	-
10	RXD0 (UART)	GPIO15
11	GPIO	GPIO17
12	PWM0 / GPIO	GPIO18
13	GPIO	GPIO27
14	GND	-
15	GPIO	GPIO22
16	GPIO	GPIO23
17	3.3V	-
18	GPIO	GPIO24
19	MOSI (SPI0)	GPIO10
20	GND	-
21	MISO (SPI0)	GPIO9
22	GPIO	GPIO25
23	SCLK (SPI0)	GPIO11
24	CE0 (SPI0)	GPIO8
25	GND	-
26	CE1 (SPI0)	GPIO7
27	SDA0 (I2C0 / ID_SD)	GPIO0
28	SCL0 (I2C0 / ID_SC)	GPIO1
29	GPIO	GPIO5
30	GND	-
31	GPIO	GPIO6
32	PWM0 / GPIO	GPIO12
33	PWM1 / GPIO	GPIO13
34	GND	-
35	PWM1 / GPIO	GPIO19
36	GPIO	GPIO16
37	GPIO	GPIO26
38	GPIO	GPIO20
39	GND	-
40	GPIO	GPIO21