SparkFun Line Follower Array
Product details
| Management number | 234968787 | Release Date | 2026/07/02 | List Price | $16.37 | Model Number | 234968787 | ||
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- 8 sensor eyes (QRE1113)
- I2C interface
- Adjust IR brightness on the fly with a knob
- Invert dark/light sight with software
- Based on the SX1509 I/O expander
The SparkFun Line Follower Array is a long board consisting of eight IR sensors that have been configured to read as digital bits! Each array features visible LEDs that point upward when the board is attached (properly) so you can see what the robot sees, brightness control right on the board, and an I2C interface for reading and power control.
The line follower functions by taking an 8-bit reading of reflectance for use with following lines or reading dark/light patterns and can see from about ¼ to ¾ inches away. The IR brightness control and indicator can be adjusted with the on-board potentiometer and is capable of showing you the strength of the IR LEDs. Illumination can be turned on and off with software to conserve power, or left on all the time for faster readings. The line follower array requires 5V of power with a supply current range of 25-185mA with strobing disabled and 16-160mA with it enabled.
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