THERMO 2 click
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THERMO 2 click

Description of product

Description

THERMO 2 click carries DS1825, a programmable resolution digital thermometer IC with a unique 64-bit address. The click is designed to run on a 3.3V power supply. The board communicates with the target microcontroller through a 1-wire interface. Using the onboard jumper you can select between two outputs: GP1 (default mikroBUS™ AN pin), and GPO (default PWM pin).

Temperature range

The sensor aboard THERMO 2 click measures temperature within a range from –10°C to 85°C with ±0.5°C accuracy.

DS1825 digital thermometer

You can specify the resolution of the measurements, from 9 to 12-bit, depending on the application. Because each DS1825 has a unique 64-bit serial code, many of them can function on the same 1-wire bus.

The 4-bit location address lets you set up a unique ID for up to 16 sensors that operate on a single 1-Wire bus.

Onboard jumpers

The board features a set of four onboard jumpers (zero ohm resistors) for specifying a unique address for the sensor.

A separate jumper lets you select the sensor’s output between GP1 and GP0 pins.

THERMO 2 click also features four Address Select jumpers for setting a unique ID for the sensor (allowing for up to 16 sensors to operate on a single 1-Wire bus).

Key features

  • DS1825 digital thermometer
    • ±0.5°C accuracy from -10°C to +85°C  
    • Thermometer Resolution is User-Selectable from 9 to 12 Bits
    • Alarm function (user-programmable)
  • Interface: AN, PWM
  • 3.3V power supply

Specification

Type Temperature
Applications HVAC systems, weather stations… especially suitable for connecting multiple sensors to a single MCU
On-board modules DS1825 digital thermometer IC
Key Features 1-Wire interface. Sensitivity: -10°C to 85°C with ±0.5°C accuracy. User selectable 9 to 12-bit measurement resolution
Key Benefits Four onboard jumpers for specifying sensor ID
Interface GPIO
Input Voltage 3.3V
Compatibility mikroBUS
Click board size S (28.6 x 25.4 mm)

Documentation

Pinout diagram

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

Notes Pin Mikrobus logo.png
mikroBUStm                        
Pin Notes
Data Input/Output pin        GPIO1   1 AN PWM 16  GPIO0   Data Input/Output pin  
Not connected NC 2 RST INT 15 NC Not connected
Not connected NC 3 CS TX 14 NC Not connected
Not connected NC 4 SCK RX 13 NC Not connected
Not connected NC 5 MISO SCL 12 NC Not connected
Not connected NC 6 MOSI SDA 11 NC Not connected
Power supply +3.3V 7 3.3V 5V 10 NC Not connected
Ground GND 8 GND GND 9 GND Ground