THERMO 9 CLICK
PID: MIKROE-3983
Weight: 20 g
Thermo 9 Click is a Click board™ equipped with the TSYS01, a digital temperature
sensor from TE Connectivity. Given its main features, the Thermo 9 Click, can be used
for industrial control, replacement of thermistors and NTCs, heating/cooling systems,
and HVAC.
This Click board™ is supported by a mikroSDK compliant library, which includes
functions that simplify software development. The Click board™ comes as a fully tested
product, ready to be used on a system equipped with a mikroBUS™ socket.
HOW DOES IT WORK?
The main feature of the Thermo 9 Click is the TSYS01. This is a single device, versatile,
new technology temperature sensor. The TSYS01 provides factory calibrated
temperature information and it includes a temperature sensing chip and a 24-bit ΔΣADC. The essence of the digital 24-bit temperature value and the internal calibration
values lead to highly accurate temperature information accompanied by high
measurement resolution. The TSYS01 can be interfaced to any microcontroller by an
I2C or SPI interface. This microcontroller has to calculate the temperature result based
on the ADC values and the calibration parameters.
The TSYS01 has the SPI and the I2C Interface. When it comes to the I2C
communication, it starts with a start condition and it is ended by a stop condition. Each
command consists of two bytes: the address byte and command byte. The SPI
communication is a 4-wire SPI bus, operating as a slave. CS (chip select), SCLK (serial
clock), SDI (serial data in), and SDO (serial data out) are used to interact with the SPI
master. Communication with the chip starts when CS is pulled to low and ends when
CS is pulled to high. SCLK is controlled by the SPI master and idles low (SCLK low on
CS transitions, mode 0). A mode where the clock alternatively idles high is also
supported (mode 3).
The basic operating principles of the TSYS01 include several important features.
Basically, converting temperature into digital 16/24 bit ADC value and providing
calibration coefficients while also providing ADC value and calibration coefficients by
SPI or I2C interface.
Given the most notable features of the Thermo 9 Click, it can be used for industrial
control, replacement of thermistors and NTCs, heating/cooling systems, and HVAC. The
design of the Click board™ itself is such that the thermal radiation from other
components, which might affect the environmental temperature readings of the sensor,
is reduced. The onboard SMD jumper labeled as VCC SEL allows voltage selection for
interfacing with both 3.3V and 5V MCUs.
SPECIFICATIONS
Type
Temperature & humidity
Applications
Industrial control, replacement of thermistors and NTCs,
heating/cooling systems, and HVAC
On-board
modules
TSYS01, a digital temperature sensor from TE Connectivity
Key Features
High accuracy, Operating temperature range:-40°C to +125°C
Interface
I2C,SPI
Compatibility
mikroBUS
Click board size
S (28.6 x 25.4 mm)
Input Voltage
3.3V
PINOUT DIAGRAM
This table shows how the pinout on Thermo 9 Click corresponds to the pinout on the
mikroBUS™ socket (the latter shown in the two middle columns).
Notes
Pin
Pin
Notes
NC
1
AN
PWM
16
NC
NC
2
RST
INT
15
NC
CS
3
CS
RX
14
NC
SPI Clock
SCK
4
SCK
TX
13
NC
SPI Data OUT
SDO
5
MISO
SCL
12
SCL
I2C Clock
SPI Data IN
SDI
6
MOSI
SDA
11
SDA
I2C Data
Power Supply
3.3V
7
3.3V
5V
10
NC
Ground
GND
8
GND
GND
9
GND
SPI Chip Select
Ground
ONBOARD SETTINGS AND INDICATORS
Label
Name
Default
Description
LD14
COM SEL
Right
Communication interface selection: left position SPI,
right position I2C
JP5
ADD SEL
Left
Select I2C address bit
SOFTWARE SUPPORT
We provide a library for the Thermo 9 Click on our LibStock page, as well as a demo
application (example), developed using MikroElektronika compilers. The demo can run
on all the main MikroElektronika development boards.
Library Description
The library covers all the necessary functions that enables the usage of the Thermno 9
Click board. It holds functions that allow full control of the device to the user. User can
calibrate the device, read temperature or read raw values if necessary.
Key functions:
void thermo9_calibation ( ); - Function resets and calibrates the device in order for it to work
properly.
float thermo9_read_temp ( ); - Function is used to read temperature in degree centigrade.
uint32_t thermo9_read_adc ( ); - Function is used to read ADC data.
Examples description
The application is composed of three sections :
System Initialization - Initializes GPIO, SPI and LOG structures.
Application Initialization - Initalizes SPI driver, calibrates the device and makes an initial log.
Calibration function must be used once in order for it to work properly!
Application Task - (code snippet) This example shows capabilities of Thermo 9 click by measuring
temperature every 3 seconds and displaying temperature in degrres Celsius via USART terminal.
temp_val = thermo9_read_temp( );
mikrobus_logWrite( " Temperature: ", _LOG_TEXT );
log_display( temp_val );
mikrobus_logWrite( deg_cel, _LOG_LINE );
mikrobus_logWrite( "‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐", _LOG_LINE );
Delay_ms( 3000 );
Additional Functions :
void log_display( float value ) - Function displays readings as floating point value with two decimal
places.
The full application code, and ready to use projects can be found on our LibStock page.
Other mikroE Libraries used in the example:
SPI
I2C
UART
Conversins
Additional notes and informations
Depending on the development board you are using, you may need USB UART
click, USB UART 2 click or RS232 click to connect to your PC, for development systems
with no UART to USB interface available on the board. The terminal available in all
MikroElektronika compilers, or any other terminal application of your choice, can be
used to read the message.
MIKROSDK
This Click board™ is supported with mikroSDK - MikroElektronika Software
Development Kit. To ensure proper operation of mikroSDK compliant Click board™
demo applications, mikroSDK should be downloaded from the LibStock and installed for
the compiler you are using.
For more information about mikroSDK, visit the official page.
https://www.mikroe.com/thermo‐9‐click/2‐11‐20