I²C
temperature sensors
Digital sensors that are fast, accurate, and multi-slave compatible, designed for reliable integration into embedded systems and high-throughput industrial applications.
What is an I²C sensor ?
An I²C sensor is a digital sensor that communicates with a microcontroller via the I²C bus (Inter-Integrated Circuit), a synchronous serial protocol widely used in embedded electronics and automation.
I²C sensors are therefore particularly suited for industrial, home automation, environmental, or embedded applications where reliability, precision, and interoperability are essential.
We integrate any sensor into any probe
Termal block
✽ What I²Cs Offer
Discover the main four benefits
Fast and reliable transmission
The I²C protocol enables communications up to 3.4 MHz. This speed is ideal for applications where measurements must be taken and processed in real-time, such as in thermal regulation systems or embedded devices.
Smart and multi-parameter sensors
Some I²C sensors are not limited to temperature: they also integrate pressure, humidity, air quality, and even thermal alarm management. This is the ideal choice for home automation, environmental, or industrial projects that require comprehensive monitoring.
Simplified multipoint connection
With I²C, multiple sensors can be connected on the same bus without multiplying the physical inputs on your microcontroller. Each sensor has its own address, making it easy to organize a sensor network without complex wiring.
Compatibility with industrial standards
The I²C protocol is ubiquitous in microcontrollers (Arduino, ESP32, Raspberry Pi, STM32…), as well as in industrial integrated circuits. Choosing an I²C sensor ensures smooth and lasting integration into professional electronic systems.
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Need I²C sensors for an embedded, industrial, or environmental project ?
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Frequently asked questions
Here are some common questions about our I²Cs.
The I²C sensor uses two lines (SDA/SCL), while the 1-Wire operates with a single data line. I²C offers a much higher communication speed, broader compatibility with industrial systems, and allows up to 127 devices per bus. The 1-Wire is slower but can be powered in parasitic mode.
Yes, this is one of the main advantages of the I²C protocol. It allows multiple sensors (up to 127 theoretically) to be connected on the same SDA/SCL pins. Each sensor just needs a different I²C address, configurable by hardware or software depending on the model.
In theory, I²C is designed for short-distance communications (a few tens of centimeters to 1 meter max). To extend the range, solutions exist: signal repeaters, I²C to differential bus converters (I²C-over-RS485, etc.), or using sensors with alternative interfaces.
It depends on the model. I²C sensors generally offer a resolution between 9 and 16 bits, with a typical accuracy of ±0.1 to ±0.5 °C. Some combined models (like BME280, HTU21D…) also integrate humidity, pressure, or VOCs, with varying accuracies depending on the parameters.