Ozone Click

The sensor outputs an analog voltage, which is converted by the onboard MCP3201 12-bit ADC converter. The MCP3201 is typically used as a sensor interface for data acquisition. It’s capable of outputting sample rates of up to 100 ksps at a clock rate of 1.6 MHz.

Note that the sensing layer is sensitive to various external factors. For example, it must not be exposed to high concentrations of organic solvents, silicone vapours or cigarette-smoke. Otherwise it might damage the sensitive layer and diminish the accuracy of the sensor.

Pinout diagram

This table shows how the pinout on Ozone click corresponds to the pinout on the mikroBUS™ socket (the latter shown in the two middle columns).

Notes	Pin	mikroBUStm				Pin	Notes
Not connected	NC	1	AN	PWM	16	NC	Not connected
Not connected	NC	2	RST	INT	15	NC	Not connected
Chip select	SPI-CS	3	CS	TX	14	NC	Not connected
SPI Clock	SPI_SCK	4	SCK	RX	13	NC	Not connected
SPI Master Input Slave Output	SPI_MISO	5	MISO	SCL	12	NC	Not connected
Not connected	NC	6	MOSI	SDA	11	NC	Not connected
Not connected	NC	7	3.3V	5V	10	+5V	Power supply
Ground	GND	8	GND	GND	9	GND	Ground

Programming

The following code snippet reads off the sensor data every 500 milliseconds.

 1 void main() 
 2 {
 3    system_init();
 4    display_init();
 5    
 6    while( 1 )
 7    {
 8        measurement();
 9        calculation();
10        display_result();
11        delay_ms( 500 );
12    }
13 }

Code examples that demonstrate the usage of Ozone click with MikroElektronika hardware, written for mikroC for ARM, AVR, dsPIC, FT90x, PIC and PIC32 are available on Libstock.