TI's TIDA-01476 is a low-power wireless PIR motion detection reference design that connects industrial sensors to cloud nodes, enabling seamless communication with IoT network gateways and cloud data providers. This design leverages micro-power operational amplifiers, comparators, and the SimpleLinkâ„¢ ultra-low-power sub-1 GHz wireless microcontroller (MCU) platform to create an energy-efficient sensor-to-cloud motion detector. With a battery life of up to 10 years and a transmission range of up to 1 km, it meets IEEE 802.15.4e/g standards and is ideal for applications like motion detection, lighting control, wireless systems, and building automation.
The TIDA-01476 reference design demonstrates how to build an industrial sensor-to-cloud end node capable of connecting to IoT networks and cloud platforms. It uses Texas Instruments’ nano-power op amps, comparators, and the SimpleLink™ ultra-low-power sub-1 GHz wireless MCU to create a highly efficient system that minimizes power consumption while maximizing performance. This makes it perfect for applications where long battery life and wireless connectivity are essential.
One of the key challenges in large-scale wireless networks is power management. Battery-powered systems require frequent replacements, which can be costly and inconvenient. The TIDA-01476 addresses this by using low-power analog components and a highly optimized wireless MCU, allowing for a 10-year battery life from a single CR2032 coin cell. This design ensures minimal maintenance and high reliability.
At a high level, the system includes a CR2032 battery, two nano-power op amps, two nano-power comparators, an ultra-low-power wireless MCU, and a PIR sensor with an analog output. The op amps amplify the sensor signal, while the comparators act as a window comparator to detect motion. These signals trigger the MCU, which remains in sleep mode until motion is detected, significantly reducing power usage.
This design guide provides detailed information on component selection, circuit theory, software implementation, and testing results. It serves as a valuable resource for system designers looking to integrate TI’s nano-power analog components and the SimpleLink™ wireless MCU into their own sensor-to-cloud solutions.
**Key Features of TIDA-01476:**
- Long-range connectivity (up to 1 km)
- IEEE 802.15.4e/g compliant
- Ultra-low power design with 10-year battery life
- Low standby current (1.65 μA)
- Motion detection with interrupt-driven wireless communication
- Sensitivity up to 30 feet
**Applications:**
- Motion detection
- Lighting sensors
- Wireless controls
- Building automation
The reference design also includes a block diagram, circuit diagrams, a bill of materials, and PCB layout for easy integration. Additional details can be found in the associated technical documents such as Tiduda8.pdf, Tidrs11.pdf, and Tidrs12.pdf.
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