Please note: European delivery is temporarily disabled due to significant delays and other issues (Important info for EU customers)
Line Tracker Mouse plus batteries
A complete kit of electronic and mechanical parts to build a line following robot. Three photosensors are used as the robots ‘eyes’ to allow it to follow a black line, drawn on paper or taped to the floor.
Note: This kit is a challenging build and as such is not suitable for beginners. It is recommended for ages 14 and up.
Requires 4x AA batteries available separately.
Full assembly instructions included.
Same Day Dispatch
- Orders placed online before 3:00pm Monday - Friday (excluding public holidays and our Christmas shutdown period) are always dispatched the same day provided the goods are in stock. If the goods are not in stock we will endeavour to contact you as soon as possible to discuss a dispatch date.
- If you live on the UK mainland and don't have any large materials or lithium batteries in your order it will cost £3.95 (£4.74 including VAT) if you spend less than £40 (£48 including VAT).
- If you spend between £40 and £200 (£48 - £240.00 including VAT, excluding large materials or lithium batteries) delivery is free to most locations, £12 (£14.40 including VAT, excluding large materials or lithium batteries) to Northern Ireland and £15 (£18.00 including VAT, excluding large materials or lithium batteries) to UK remote locations. For a list of postcodes that will be charged the remote location rate: remote area list.
- If you spend over £200 (£240.00 including VAT, excluding large materials or lithium batteries) delivery is free within the UK.
Rest of the world
- These orders are sent via UPS, and the cost is dependant on the service you choose at checkout. Alternatively you can choose the free collection option and have your own courier collect it from us. International orders can only be shipped to the registered card address. Please note: International orders may be charged import duty dependant on local import laws and duty rates. These charges are usually billed to you directly from UPS.
- Delivery times vary for international orders depending on the service selected and the destination. You can see the delivery time and cost at the shipping stage, or by using the shipping estimator from within the shipping basket.
- If you would like to collect your order, or use your own courier then there is an option you can select during checkout. We do not charge a packaging or handling fee for this service, and you will receive an email when your order has been processed, you can collect half an hour after receipt of this email.
- For information about all of the delivery options we offer see full delivery details.
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sensors will pick it up, with a standard roll of insulating tape it is fine. When it detects left and centre the mouse is about to head off to the right of the line, so the right wheel spins forward, which brings back pointing down the line and just the centre sensor is on. The opposite is true when the right and centre sensors are on, when the left wheel spins bringing it back on line. The centre sensor should always be on and additionally an edge sensor may also be on. There should never be a case when all three sensors are either on or off. If all three are off the line is not being detected, if all three are on then it is too wide. The two motors should run at approximately the same speed as each other but it doesn't matter if they don't, as if one is faster it will cause the robot to move off the line, when that motor will stop allowing the other motor to catch up.
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