DESCRIPTION
The Line Follower Array is a long board consisting of eight IR sensors that have been configured to read as digital bits! It has been designed to follow a dark line of about ¾ inch width or smaller (spray paint or electrical tape) on a light background. 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 1/4 to 3/4 inches away.
The IR brightness control and indicator can be adjusted with the onboard 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. Additionally, it has six mounting holes added to the line follower with the two inner holes designed to fit the Shadow Chassis while the other four are general purpose.
Please Note:
- As you know our Sun emits quite a bit of infrared light, making the SparkFun Line Follower Array much less effective in direct sunlight. Plan your projects accordingly!
FEATURES
- 8 sensor eyes (QRE1113, like in our line sensor breakout)
- I2C interface
- Adjust IR brightness on the fly with a knob
- Switch IR on and off with software
- Switch visual indicators on and off with software
- Invert dark/light sight with software
- Based on the SX1509 I/O expander
RESOURCES
- Schematic
- Eagle Files
- Hookup Guide
- Datasheet (QRE1113GR)
- GitHub (Design Files)
- GitHub (Library & Example Code)
Fast Delivery and Professional Packaging
Because of our long-standing relationship with UPS FedEx DHL as well as other top global carriers, we are able offer a variety shipping options. Our warehouse personnel is highly-skilled and will package your items according to our precise and precise specifications. Your goods are thoroughly checked and securely secured prior to shipment. We deliver to thousands of customers each day across multiple countries. This demonstrates our dedication to become the biggest online retailer in the world. There are distribution centers as well as warehouses in Europe and the USA.
Note: Orders with more than one item are assigned a processing time according to the item.
Prior to shipment before shipping, we'll inspect thoroughly the items you've purchased. Today, the majority orders will be shipped within 48 hours. The delivery time is between 3-7 days.
Returns
The stock market is always changing. It's not completely managed by us, as we're involved with several organizations, such as the factory and our storage. Stock levels can fluctuate at any given time. Please be aware that it is possible that your order could be out of stock after you have placed the order.
Our policy is valid for 30 days. If it's been more 30 days since you bought the item and we're unable to offer you a full refund or exchange.
For your item to be eligible for return, it must be unopened and in the condition you received it in. It should also be in the original packaging.
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