DC 3-5V PCT2075 Temperature Sensor Module Breakout Board Compatible with STEMMA QT Qwiic PCB 11 Bit ADC Sensor Module
Feature:
1. Direct Replacement for LM75: The PCT2075 Temperature Sensor is a drop-in replacement for the widely used I2C temperature sensor LM75, making it easy to upgrade your existing projects with improved accuracy and performance.
2. High-Resolution ADC: With an 11-bit ADC, the PCT2075 provides more accurate measurements than the 9-bit ADC in the LM75, allowing you to obtain precise temperature readings even in the most demanding applications.
3. Address Pins: The PCT2075 allows its address pins to work in three states (high, low, floating), allowing up to 27 PCT2075 sensors on the same bus, while the LM75 can only have up to 8.
4. Convenient and Affordable: The PCT2075 Temperature Sensor Module is both convenient and affordable, making it a great addition to any project where temperature monitoring is required. It can keep a close eye on temperature changes and notify you when things get too hot or cold.
5. STEMMA QT Connector: The module comes with a STEMMA QT connector, making it easy to connect to other devices with STEMMA QT ports. This ensures quick and easy installation without any soldering or complicated wiring.

 

Specification:
Outgoing line:
Power pin
The sensors on the breakout require a voltage between 2.7V and 5.5V, and can be easily used with most microcontrollers, from for Arduino to Feather or something else.
Vcc - This is the power pin. To power the circuit board, provide it with a power supply that is the same as the logic level of the microcontroller - for example, for a 5V micro like for Arduino, use 5V
GND - Common ground for power and logic
I2C logic pin
SCL - This is the I2C clock pin connected to the I2C clock line of the microcontroller.
SDA - This is the I2C data pin connected to the I2C data cable of the microcontroller
STEMA QT - These connectors allow you to connect to the development board using STEMA QT connectors or to connect to other things using various related accessories
Other pins
INT - This is the interrupt pin. You can set PCT2075 to activate this pin when the temperature threshold is reached or exceeded.
A0, A1, A2- I2C address pins. Please refer to the "I2C Address Selection" section below
I2C address selection
One improvement of PCT2075 compared to its replaceable LM75 is its ability to have three times the number of I2C addresses. Interestingly, they achieve this by allowing three address pins A0, A1, and A2 to be in one of three states, low (0), high (1), or floating (F). This means there are 33 (27) possible addresses. Connect the address pin to the low level, connect the logical level of the device to the high level, or suspend the pin.
We have all three address pins suspended at the breach for maximum configurability. This means that the default address for breakout is 0x37.

Size: 25 * 18 * 5mm/0.98 * 0.70 * 0.19inch

Note:
Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you!
Please allow 1-2cm measuring deviation due to manual measurement.