> **Source:** Core Electronics is an Australian maker-electronics retailer and manufacturer based in Newcastle, NSW, run by a team of makers and educators. We design and manufacture our own product lines (PiicoDev, CE originals) and are official retailers for iconic maker and industrial brands including Raspberry Pi, Arduino, Adafruit, SparkFun and DFRobot. Orders ship Australia-wide from our Newcastle warehouse. Prices are in AUD and include GST. Pricing, stock and dispatch on this page are generated from the store's live catalog. Full machine-readable index: https://core-electronics.com.au/llms.txt

# RedBot Sensor - Line Follower

**Type:** Product page · **SKU:** SEN-11769 · **Brand:** [Sparkfun](https://core-electronics.com.au/brands/sparkfun-australia)
**Page:** https://core-electronics.com.au/redbot-sensor-line-follower.html ([markdown](https://core-electronics.com.au/redbot-sensor-line-follower.html.md))

The Line Follower sensor is an add-on for your RedBot that gives your robot the ability to detect lines or nearby objects. The sensor works by detecting reflected light coming from its own infrared LED. By measuring the amount of reflected infrared light, it can detect transitions from light to dark (lines) or even objects directly in front of it.

## Pricing

- **Price:** $6.60 (inc GST) — $6.00 AUD, exc GST
- **Quantity discounts:** 5+ $5.82 (exc GST) · 25+ $5.70 (exc GST) · 100+ $5.46 (exc GST)

## Availability & dispatch

- Available with a lead time — expect dispatch between Aug 17 and Aug 24.

## How to buy

- **Build a cart:** compose `https://core-electronics.com.au/cart/link?items=SEN-11769:1` (comma-separated SKU:qty pairs) and share the link. Opening it shows a confirmation page with live pricing and stock before anything is added to the cart.
- **Verify the cart first:** fetch `https://core-electronics.com.au/cart/link/SEN-11769:1.md` for live line prices (inc & exc GST, quantity discounts applied), stock and dispatch estimates, and totals. Append `/to/{AU-postcode}` (or `/to/{country-code}:{postcode}`) before `.md` for delivery options and prices to that destination. Unknown, retired, or out-of-stock SKUs are flagged. (Query form `cart/link.md?items=...` also works but some robots parsers refuse query strings here.)
- **Checkout** is completed on-site and includes a captcha at the payment step. Share the cart link; checkout takes it from there.
- **Search the catalogue:** `https://core-electronics.com.au/search/{query}.md` (URL-encode the query; pages 2-3 at `search/{query}/{page}.md`; `search.md?q=` also works)
- **Payment methods, purchase orders, policies and contact details:** https://core-electronics.com.au/llms.txt
## Description

The Line Follower sensor is an add-on for your RedBot that gives your robot the ability to detect lines or nearby objects. The sensor works by detecting reflected light coming from its own infrared LED. By measuring the amount of reflected infrared light, it can detect transitions from light to dark (lines) or even objects directly in front of it.

 The sensor has a 3-pin header which connects directly to the RedBot Mainboard via female to female jumper wires. Use the included RedBot library to detect lines or objects. A mounting hole lets you easily connect one or more of these to the front or back of your robot chassis.

 Check out the entire RedBot family of products!

**Dimensions:** 0.32 x 1.18 “ (8.22 x 30.14 mm)

**Features:**

- 5VDC operating voltage
- Mounting hole
- 25mA supply current
- Optimal sensing distance: 0.125" (3mm)
 
**Documents:**

- [Schematic](https://core-electronics.com.au/attachments/localcontent/RedBot_Line_Sensor_26590ccfbbe.pdf)
- [Eagle Files](https://core-electronics.com.au/attachments/localcontent/RedBot_Line_Sensor_5647493a948.zip)
- [Datasheet](https://core-electronics.com.au/attachments/localcontent/QRE1113_64980d0c1a5.pdf) (QRE1113GR)
- [Quickstart Guide](https://learn.sparkfun.com/tutorials/getting-started-with-the-redbot)
- [RedBot Assembly Guide Rev 02](https://learn.sparkfun.com/tutorials/redbot-assembly-guide-rev-02/redbot-sensor---line-followers)
- RedBot Arduino Library
- [GitHub](https://github.com/sparkfun/RedBot_Line_Sensor)
- [Product Video](https://sparkfun.com/videos#all/tFAOAJPDeoE/543)

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/r/e/redbot_sensor_-_line_follower__sen-11769__01.jpg)