muRata IMX-070 Pyroelectric Infrared Sensor Evaluation Board User Guide
- June 12, 2024
- muRata
Table of Contents
- muRata IMX-070 Pyroelectric Infrared Sensor Evaluation Board
- Product Information
- Product Usage Instructions
- Pyroelectric infrared Sensor
- Specifications
- Quick Start Guide : Pyroelectric Infrared Sensor
- Hardware Operation
- Software Operation
- Pin Connection
- Read User Manual Online (PDF format)
- Download This Manual (PDF format)
muRata IMX-070 Pyroelectric Infrared Sensor Evaluation Board
Product Information
The Pyroelectric Infrared Sensor Evaluation Board (Model: IMX-070, IMX-060) is designed to detect changes in the infrared (IR) distribution within its sensing area. The sensing area is determined by the lens design. The board features an amplifier and comparator circuit that amplifies the sensor’s output signal and generates a digital high/low signal. The board requires a lens to be attached for proper operation.
Product Usage Instructions
To use the Pyroelectric Infrared Sensor Evaluation Board, follow these steps:
- Make sure the lens is attached to the board.
- Connect the evaluation board to the CPU board using the following pin connections:
| Evaluation Board | VCC | GND | COUT | AOUT |
|---|---|---|---|---|
| Arduino UNO | 3.3V | GND | D2 | A0 |
Once the board is connected, the hardware operation is as follows:
- While there is no change in IR distribution, the AOUT voltage is 1.65V and COUT is high (3.3V).
- When a change in IR distribution is detected, the AOUT voltage varies and once it crosses the threshold, the COUT falls to low (0V).
Pyroelectric infrared Sensor
Evaluation Board: IMX-070, IMX-060
- It’s a Evaluation Board to know how Pyroelectric Infrared Sensor(IRA-S210ST01) working and performance.
Specifications
- Rated Voltage : 3.3V
- Output signal : analog, comparator
- Dimension : 48×30mm
Quick Start Guide : Pyroelectric Infrared Sensor
- Every objects emit IR(=Infra-Red) ray in respond to its temperature.
- Pyroelectric Infrared Sensor detects “change” of IR distribution within its sensing area.
- sensing area is determined by lens design.
- Amplifier and comparator circuits on evaluation board amplifies sensor’s output signal and generate digital High/Low signal. (Next page).
(Please make sure lens is attached on board.)
Hardware Operation
- While there’s no IR distribution change, AOUT is 1.65V and COUT is HIGH(=3.3V). When it detects that, AOUT varies and once AOUT crosses threshold, COUT falls to LOW(=0V).
- In the sample code, we detect this COUT change with GPIO external interruption and IRQ handler sets a flag which is periodically monitored in main loop.(Next page)
Software Operation
Sample Code Flow Chart
Pin Connection
- Pin connection to each CPU board is also instructed in sample code.
| Evaluation board | Arduino UNO | |
|---|---|---|
| VCC | 3.3V | |
| GND | GND | |
| COUT | D2 | |
| AOUT | A0 |
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