Thermo 28 Click Board™

Product Code: MIKROE-5466

How Does The Thermo 28 Click Board™ Work? The Thermo 28 Click Board™ is based on the AS6221, a digital temperature sensor from ams AG with increased reliability and improved accuracy specifications optimal for thermal management and protection applications. It integrates a digital temperature sensor with a SI bipolar transistor as a sensing element, a high-resolution analogue-to-digital converter (ADC), a data processing circuit, and serial interface logic functions in one package. The voltage is digitized and converted to a 16-bit temperature result in degrees Celsius, giving a fully calibrated digital output with outstanding accuracy of up to ±0.9°C typical over a temperature range of 20°C to 42°C. The Thermo 28 Click Board™ communicates with MCU using the standard I2C 2-Wire interface to read data and configure settings, supporting a high clock frequency operation. Besides, it also allows the choice of the four least significant bits of its I2C slave address by positioning the SMD jumper labelled ADDR SEL to an appropriate position providing the user with a selection of four slave addresses.

In addition to communication signals, the AS6221 also possesses an additional interrupt alert signal, routed on the INT pin of the mikroBUS™ socket, indicating when a specific interrupt event occurs that depends on the value of the temperature reading relative to programmable limits. The Thermo 28 Click Board™ can be operated only with a 3.3V logic voltage level. The board must perform appropriate logic voltage level conversion before using MCUs with different logic levels. However, the Click board™ comes equipped with a library containing functions and an example code that can be used as a reference for further development. SPECIFICATIONS Type Temperature & humidity Applications It can be used to replace PTC resistors in various consumer, and environmental applications On-board modules AS6221 - digital temperature sensor from ams AG Key Features Low power consumption, high precision, I2C interface, factory calibrated, high accuracy and resolution, high reliability and long-term stability, and more Interface I2C Compatibility mikroBUS Click board size S (28.6 x 25.4 mm) Input Voltage 3.3V PINOUT DIAGRAM This table shows how the pinout of the Thermo 28 Click Board™ 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 INT Interrupt NC 3 CS RX 14 NC NC 4 SCK TX 13 NC NC 5 MISO SCL 12 SCL I2C Clock NC 6 MOSI SDA 11 SDA I2C Data Power Supply 3.3V 7 3.3V 5V 10 NC Ground GND 8 GND GND 9 GND Ground ONBOARD SETTINGS AND INDICATORS Label Name Default Description LD1 PWR - Power LED Indicator JP1 ADDR SEL Lower I2C Address Selection: Left position SDA, Right position SCL, Upper position 1, Lower position 0 THERMO 28 CLICK ELECTRICAL SPECIFICATIONS Description Min Typ Max Unit Supply Voltage - 3.3 - V Temperature Accuracy - ±0.9 - °C Resolution - 16 - bits Operating Temperature Range -20 +25 +80 °C