Particle Board Firmware: Final

.categories

+lang:java
+lang:python
+lang:arduino
+lang:particle
+lang:C
+sku:SI7005_I2CS

Arduino/SI7005.ino

+// Distributed with a free-will license.
+// Use it any way you want, profit or free, provided it fits in the licenses of its associated works.
+// SI7005
+// This code is designed to work with the SI7005_I2CS I2C Mini Module available from ControlEverything.com.
+// https://www.controleverything.com/content/Temperature?sku=SI7005_I2CS#tabs-0-product_tabset-2
+
+#include<Wire.h>
+
+// SI7005 I2C address is 0x40(64)
+#define Addr 0x40
+
+void setup()
+{
+  // Initialise I2C communication as Master
+  Wire.begin();
+  // Initialise serial communication, set baud rate = 9600
+  Serial.begin(9600);
+  delay(300);
+
+}
+
+void loop()
+{
+  unsigned int data[3];
+
+  // Start I2C transmission
+  Wire.beginTransmission(Addr);
+  // Select configuration register
+  Wire.write(0x03);
+  // Command for temperature measurement
+  Wire.write(0x11);
+  // Stop I2C transmission
+  Wire.endTransmission();
+  delay(500);
+
+
+  // Start I2C transmission
+  Wire.beginTransmission(Addr);
+  // Select data register
+  Wire.write(0x00);
+  // Stop I2C transmission
+  Wire.endTransmission();
+
+  // Request 3 byte of data
+  Wire.requestFrom(Addr, 3);
+
+  // Read 3 byte of data
+  // status, temp_msb, temp_lsb
+  if (Wire.available() == 3)
+  {
+    data[0] = Wire.read();
+    data[1] = Wire.read();
+    data[2] = Wire.read();
+  }
+
+
+  // Keep checking for valid data
+  while ((data[0] & 0x01) != 0)
+  {
+    // Start I2C transmission
+    Wire.beginTransmission(Addr);
+    // Select data register
+    Wire.write(0x00);
+    // Stop I2C transmission
+    Wire.endTransmission();
+
+    // Request 3 byte of data
+    Wire.requestFrom(Addr, 3);
+
+    // Read 3 byte of data
+    // status, temp_msb, temp_lsb
+    if (Wire.available() == 3)
+    {
+      data[0] = Wire.read();
+      data[1] = Wire.read();
+      data[2] = Wire.read();
+    }
+  }
+
+  // Convert the data to 14-bits
+  int temp = ((data[1] * 256) + (data[2] & 0xFC)) / 4;
+  float cTemp = (temp / 32.0) - 50.0;
+  float fTemp = cTemp * 1.8 + 32;
+
+  // Start I2C transmission
+  Wire.beginTransmission(Addr);
+  // Select configuration register
+  Wire.write(0x03);
+  // Command for humidity measurement
+  Wire.write(0x01);
+  // Stop I2C transmission
+  Wire.endTransmission();
+  delay(300);
+
+  // Start I2C transmission
+  Wire.beginTransmission(Addr);
+  // Select data register
+  Wire.write(0x00);
+  // Stop I2C transmission
+  Wire.endTransmission();
+
+  // Request 3 byte of data
+  Wire.requestFrom(Addr, 3);
+
+  // Read 3 byte of data
+  // status, humidity_msb, humidity_lsb
+  if (Wire.available() == 3)
+  {
+    data[0] = Wire.read();
+    data[1] = Wire.read();
+    data[2] = Wire.read();
+  }
+
+  // Keep checking for valid data
+  while ((data[0] & 0x01) != 0)
+  {
+    // Start I2C transmission
+    Wire.beginTransmission(Addr);
+    // Select data register
+    Wire.write(0x00);
+    // Stop I2C transmission
+    Wire.endTransmission();
+    delay(300);
+
+    // Request 3 byte of data
+    Wire.requestFrom(Addr, 3);
+
+    // Read 3 byte of data
+    // status, humidity_msb, humidity_lsb
+    if (Wire.available() == 3)
+    {
+      data[0] = Wire.read();
+      data[1] = Wire.read();
+      data[2] = Wire.read();
+    }
+  }
+
+  // Convert the data to 12-bits
+  float humidity = ((data[1] * 256.0) + (data[2] & 0xF0)) / 16;
+  humidity = (humidity / 16.0) - 24.0;
+
+  // Output data to serial monitor
+  Serial.print("Relative humidity : ");
+  Serial.print(humidity);
+  Serial.println(" %RH");
+  Serial.print("Temperature in Celsius : ");
+  Serial.print(cTemp);
+  Serial.println(" C");
+  Serial.print("Temperature in Fahrenheit : ");
+  Serial.print(fTemp);
+  Serial.println(" F");
+  delay(500);
+}
+

Firmware/SI7005.c

+// Distributed with a free-will license.
+// Use it any way you want, profit or free, provided it fits in the licenses of its associated works.
+// SI7005
+// This code is designed to work with the SI7005_I2CS I2C Mini Module available from ControlEverything.com.
+// https://www.controleverything.com/content/Temperature?sku=SI7005_I2CS#tabs-0-product_tabset-2
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <linux/i2c-dev.h>
+#include <sys/ioctl.h>
+#include <fcntl.h>
+
+void main()
+{
+	// Create I2C bus
+	int file;
+	char *bus = "/dev/i2c-1";
+	if((file = open(bus, O_RDWR)) < 0)
+	{
+		printf("Failed to open the bus. \n");
+		exit(1);
+	}
+	// Get I2C device, SI7005 I2C address is 0x40(64)
+	ioctl(file, I2C_SLAVE, 0x40);
+
+	// Send temperature measurement command(0x11)
+	char config[2] = {0};
+	config[0] = 0x03;
+	config[1] = 0x11;
+	write(file, config, 2); 
+	sleep(1);
+
+	// Read 3 bytes of data from register(0x00)
+	// cTemp msb, cTemp lsb
+	char reg[1] = {0x00};
+	write(file, reg, 1);
+	char data[3] = {0};
+	if(read(file, data, 3) != 3)
+	{
+		printf("Erorr : Input/output Erorr \n");
+	}
+	else
+	{
+		// Checking the status, Poll RDY in status until it is low(=0)
+		while((data[0] & 0x01) != 0)
+		{
+			read(file, data, 3);
+		}
+
+		// Convert the data to 14-bits
+		float cTemp = (((data[1] * 256 + (data[2]  & 0xFC)) / 4.0) / 32.0) - 50.0;
+		float fTemp = cTemp * 1.8 + 32;
+
+		// Output data to screen
+		printf("Temperature in Celsius    : %.2f \n", cTemp);
+		printf("Temperature in Fahrenheit : %.2f \n", fTemp);
+	}
+
+	// Send humidity measurement command
+	config[0] = 0x03;
+	config[1] = 0x01;
+	write(file, config, 2); 
+	sleep(1);
+
+	// Read 2 bytes of data from register(0x00)
+	// humidity msb, humidity lsb
+	reg[0] = 0x00;
+	write(file, reg, 1);
+	if(read(file, data, 3) != 3)
+	{
+		printf("Erorr : Input/output Erorr \n");
+	}
+	else 
+	{
+		// Checking the status, Poll RDY in status until it is low(=0)
+		while((data[0] & 0x01) != 0)
+		{
+			read(file, data, 3);
+		}
+
+		// Convert the data to 12-bits
+		double humidity = (((data[1] * 256 + (data[2] & 0xF0)) / 16.0) / 16.0) - 24.0;
+
+		// Output data to screen
+		printf("Relative Humidity : %.2f \n", humidity);
+	}
+}

Onion Omega Python/SI7005.py

+# Distributed with a free-will license.
+# Use it any way you want, profit or free, provided it fits in the licenses of its associated works.
+# SI7005
+# This code is designed to work with the SI7005_I2CS I2C Mini Module available from ControlEverything.com.
+# https://www.controleverything.com/content/Temperature?sku=SI7005_I2CS#tabs-0-product_tabset-2
+
+from OmegaExpansion import onionI2C
+import time
+
+# Get I2C bus
+i2c = onionI2C.OnionI2C()
+
+# SI7005 address, 0x40(64)
+# Select Configuration register, 0x03(03)
+#		0x11(11)	Temperature, Fast mode enable, Heater Off
+i2c.writeByte(0x40, 0x03, 0x11)
+
+time.sleep(0.5)
+
+# SI7005 address, 0x40(64)
+# Read data back from 0x00(00), 3 bytes
+# Status register, ctemp MSB, ctemp LSB
+# Checking the status, Poll RDY in status until it is low(=0)
+data = i2c.readBytes(0x40, 0x00, 3)
+while (data[0] & 0x01) != 0 :
+	data = i2c.readBytes(0x40, 0x00, 3)
+
+# Convert the data to 14-bits
+ctemp = ((data[1] * 256 + data[2]) / 4.0) / 32.0 - 50.0
+ftemp = ctemp * 1.8 + 32
+
+# SI7005 address, 0x40(64)
+# Select Configuration register, 0x03(03)
+#		0x01(01)	Relative Humidity, Fast mode enable, Heater Off
+i2c.writeByte(0x40, 0x03, 0x01)
+
+time.sleep(0.5)
+
+# SI7005 address, 0x40(64)
+# Read data back from 0x00(00), 3 bytes
+# Status register, humidity MSB, humidity LSB
+# Checking the status, Poll RDY in status until it is low(=0)
+data = i2c.readBytes(0x40, 0x00, 3)
+while (data[0] & 0x01) != 0 :
+	data = i2c.readBytes(0x40, 0x00, 3)
+
+# Convert the data to 12-bits
+humidity = ((data[1] * 256 + data[2]) / 16.0) / 16.0 - 24.0
+
+# Output data to screen
+print "Relative Humidity : %.2f %%" %humidity
+print "Temperature in Celsius : %.2f C" %ctemp
+print "Temperature in Fahrenheit : %.2f F" %ftemp

Particle/SI7005.ino

+// Distributed with a free-will license.
+// Use it any way you want, profit or free, provided it fits in the licenses of its associated works.
+// SI7005
+// This code is designed to work with the SI7005_I2CS I2C Mini Module available from ControlEverything.com.
+// https://www.controleverything.com/content/Temperature?sku=SI7005_I2CS#tabs-0-product_tabset-2
+
+#include <application.h>
+#include <spark_wiring_i2c.h>
+
+// SI7005 I2C address is 0x40(64)
+#define Addr 0x40
+
+double cTemp = 0.0, fTemp = 0.0, humidity = 0.0;
+int temp = 0;
+
+void setup()
+{
+  // Set variable
+  Particle.variable("i2cdevice", "SI7005");
+  Particle.variable("Humidity", humidity);
+  Particle.variable("cTemp", cTemp);
+
+  // Initialise I2C communication as Master
+  Wire.begin();
+  // Initialise serial communication, set baud rate = 9600
+  Serial.begin(9600);
+  delay(300);
+
+}
+
+void loop()
+{
+  unsigned int data[3];
+
+  // Start I2C transmission
+  Wire.beginTransmission(Addr);
+  // Select configuration register
+  Wire.write(0x03);
+  // Command for temperature measurement
+  Wire.write(0x11);
+  // Stop I2C transmission
+  Wire.endTransmission();
+  delay(500);
+
+
+  // Start I2C transmission
+  Wire.beginTransmission(Addr);
+  // Select data register
+  Wire.write(0x00);
+  // Stop I2C transmission
+  Wire.endTransmission();
+
+  // Request 3 byte of data
+  Wire.requestFrom(Addr, 3);
+
+  // Read 3 byte of data
+  // status, temp_msb, temp_lsb
+  if (Wire.available() == 3)
+  {
+    data[0] = Wire.read();
+    data[1] = Wire.read();
+    data[2] = Wire.read();
+  }
+
+  // Keep checking for valid data
+  while ((data[0] & 0x01) != 0)
+  {
+    // Start I2C transmission
+    Wire.beginTransmission(Addr);
+    // Select data register
+    Wire.write(0x00);
+    // Stop I2C transmission
+    Wire.endTransmission();
+
+    // Request 3 byte of data
+    Wire.requestFrom(Addr, 3);
+
+    // Read 3 byte of data
+    // status, humidity_msb, humidity_lsb
+    if (Wire.available() == 3)
+    {
+      data[0] = Wire.read();
+      data[1] = Wire.read();
+      data[2] = Wire.read();
+    }
+  }
+
+  // Convert the data to 14-bits
+  temp = ((data[1] * 256) + (data[2] & 0xFC)) / 4;
+  cTemp = (temp / 32.0) - 50.0;
+  fTemp = cTemp * 1.8 + 32;
+
+  // Start I2C transmission
+  Wire.beginTransmission(Addr);
+  // Select configuration register
+  Wire.write(0x03);
+  // Command for humidity measurement
+  Wire.write(0x01);
+  // Stop I2C transmission
+  Wire.endTransmission();
+  delay(300);
+
+  // Start I2C transmission
+  Wire.beginTransmission(Addr);
+  // Select data register
+  Wire.write(0x00);
+  // Stop I2C transmission
+  Wire.endTransmission();
+
+  // Request 3 byte of data
+  Wire.requestFrom(Addr, 3);
+
+  // Read 3 byte of data
+  // status, humidity_msb, humidity_lsb
+  if (Wire.available() == 3)
+  {
+    data[0] = Wire.read();
+    data[1] = Wire.read();
+    data[2] = Wire.read();
+  }
+
+  // Keep checking for valid data
+  while ((data[0] & 0x01) != 0)
+  {
+    // Start I2C transmission
+    Wire.beginTransmission(Addr);
+    // Select data register
+    Wire.write(0x00);
+    // Stop I2C transmission
+    Wire.endTransmission();
+    delay(300);
+
+    // Request 3 byte of data
+    Wire.requestFrom(Addr, 3);
+
+    // Read 3 byte of data
+    // status, humidity_msb, humidity_lsb
+    if (Wire.available() == 3)
+    {
+      data[0] = Wire.read();
+      data[1] = Wire.read();
+      data[2] = Wire.read();
+    }
+  }
+
+  // Convert the data to 12-bits
+  humidity = ((data[1] * 256) + (data[2] & 0xF0)) / 16;
+  humidity = (humidity / 16) - 24;
+
+  // Output data to dashboard
+  Particle.publish("Relative humidity : ", String(humidity));
+  Particle.publish("Temperature in Celsius : ", String(cTemp));
+  Particle.publish("Temperature in Farhenheit : ", String(fTemp));
+  delay(500);
+}
+

Python/SI7005.py

+# Distributed with a free-will license.
+# Use it any way you want, profit or free, provided it fits in the licenses of its associated works.
+# SI7005
+# This code is designed to work with the SI7005_I2CS I2C Mini Module available from ControlEverything.com.
+# https://www.controleverything.com/content/Temperature?sku=SI7005_I2CS#tabs-0-product_tabset-2
+
+import smbus
+import time
+
+# Get I2C bus
+bus = smbus.SMBus(1)
+
+# SI7005 address, 0x40(64)
+# Select Configuration register, 0x03(03)
+#		0x11(11)	Temperature, Fast mode enable, Heater Off
+bus.write_byte_data(0x40, 0x03, 0x11)
+
+time.sleep(0.5)
+
+# SI7005 address, 0x40(64)
+# Read data back from 0x00(00), 3 bytes
+# Status register, ctemp MSB, ctemp LSB
+# Checking the status, Poll RDY in status until it is low(=0)
+data = bus.read_i2c_block_data(0x40, 0x00, 3)
+while (data[0] & 0x01) != 0 :
+	data = bus.read_i2c_block_data(0x40, 0x00, 3)
+
+# Convert the data to 14-bits
+ctemp = ((data[1] * 256 + data[2]) / 4.0) / 32.0 - 50.0
+ftemp = ctemp * 1.8 + 32
+
+# SI7005 address, 0x40(64)
+# Select Configuration register, 0x03(03)
+#		0x01(01)	Relative Humidity, Fast mode enable, Heater Off
+bus.write_byte_data(0x40, 0x03, 0x01)
+
+time.sleep(0.5)
+
+# SI7005 address, 0x40(64)
+# Read data back from 0x00(00), 3 bytes
+# Status register, humidity MSB, humidity LSB
+# Checking the status, Poll RDY in status until it is low(=0)
+data = bus.read_i2c_block_data(0x40, 0x00, 3)
+while (data[0] & 0x01) != 0 :
+	data = bus.read_i2c_block_data(0x40, 0x00, 3)
+
+# Convert the data to 12-bits
+humidity = ((data[1] * 256 + data[2]) / 16.0) / 16.0 - 24.0
+
+# Output data to screen
+print "Relative Humidity : %.2f %%" %humidity
+print "Temperature in Celsius : %.2f C" %ctemp
+print "Temperature in Fahrenheit : %.2f F" %ftemp

README.md

-# SI7005 Board IoT
+[![SI7005](SI7005_I2CS.png)](https://www.controleverything.com/content/Temperature?sku=SI7005_I2CS)
+# SI7005
+SI7005 Humidity and Temperature Sensor
 
-Humidity and Temperature Sensor for dhaarav0.5
\ No newline at end of file
+The SI7005 is a Humidity and Temperature Sensor.
+
+This Device is available from ControlEverything.com [SKU: SI7005_I2CS]
+
+https://www.controleverything.com/content/Temperature?sku=SI7005_I2CS
+
+This Sample code can be used with Raspberry Pi, Arduino, Particle Photon, Beaglebone Black and Onion Omega.
+
+## Java
+Download and install pi4j library on Raspberry pi. Steps to install pi4j are provided at:
+
+http://pi4j.com/install.html
+
+Download (or git pull) the code in pi.
+
+Compile the java program.
+```cpp
+$> pi4j SI7005.java
+```
+
+Run the java program.
+```cpp
+$> pi4j SI7005
+```
+
+## Python
+Download and install smbus library on Raspberry pi. Steps to install smbus are provided at:
+
+https://pypi.python.org/pypi/smbus-cffi/0.5.1
+
+Download (or git pull) the code in pi. Run the program.
+
+```cpp
+$> python SI7005.py
+```
+
+## Arduino
+Download and install Arduino Software (IDE) on your machine. Steps to install Arduino are provided at:
+
+https://www.arduino.cc/en/Main/Software
+
+Download (or git pull) the code and double click the file to run the program.
+
+Compile and upload the code on Arduino IDE and see the output on Serial Monitor.
+
+
+## Particle Photon
+
+Login to your Photon and setup your device according to steps provided at:
+
+https://docs.particle.io/guide/getting-started/connect/photon/
+
+Download (or git pull) the code. Go to online IDE and copy the code.
+
+https://build.particle.io/build/
+
+Verify and flash the code on your Photon. Code output is shown in logs at dashboard:
+
+https://dashboard.particle.io/user/logs
+
+
+## C
+
+Download (or git pull) the code in Beaglebone Black.
+
+Compile the c program.
+```cpp
+$>gcc SI7005.c -o SI7005
+```
+Run the c program.
+```cpp
+$>./SI7005
+```
+
+## Onion Omega
+
+Get Started and setting up the Onion Omega according to steps provided at :
+
+https://wiki.onion.io/Get-Started
+
+To install the Python module, run the following commands:
+```cpp
+opkg update
+```
+```cpp
+opkg install python-light pyOnionI2C
+```
+
+Download (or git pull) the code in Onion Omega. Run the program.
+
+```cpp
+$> python SI7005.py
+```
+
+#####The code output is the relative humidity and temperature reading in degree celsius and fahrenheit.