Asked by: Abi
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Description
This simple kit offers a compact alternative to using two AA batteries.
The coin cell holder takes a CR2032 cell,
which is included. There is a small on / off switch and pads with strain relief to take power from the board.Coin cells can deliver about 20mA continuous current which is enough to power several of our kits such as the bike light, easy build timer, record and playback or air freshener project kit.
This kit is supplied as a pack of parts and requires soldering.
PCB dimensions: 43.5mm x 28mm.
Click here to download the essential information.
Free samples:
Teachers can order a sample of this kit (one per school) request a sample kit.
You will need to select the kit from a list of all the sample kits; the stock code for this kit is 2145.
Note: this service is only offered to schools for evaluation purposes only.
Buy British:
This product is designed and manufactured in the UK by Kitronik.
Caution:
Coin cells should be kept out of the reach of small children as they are very dangerous if swallowed, when immediate medical intervention is required.
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.
UK Deliveries
- 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.
Collection
- 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.
Further Information
- For information about all of the delivery options we offer see full delivery details.
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Q:
If I use White 5mm Water Clear LED - 30deg - 17500mCd - Code: 3550 with this kit, do I need a resistor?
A:
H Abi, As the Led has a forward voltage of 3.2 volts that won't be a problem to power it without a resistor. The only slight issue you might have is you find that the LED gets dimmer slightly quicker as you are starting with a voltage close to its cut off point.
Answered by: Michael Lockhart
07-Sep-18
Q:
Can you run 3 of the speakers of the 1 unit?
Asked by: Wenry
A:
When you say 3 speakers I'm assuming that you mean one channel has one speaker and the other channel has 2 speakers on it. When you put the two speakers in parallel you will half their combined resistance so the 8 ohm load becomes 4 ohms. The IC that drives the speakers can handle 4 ohms so that's fine. What should be stated is that although it is possible to add an extra speaker it won't make the sound any better quality or any louder it will only change the athletics of the design.
Answered by: Geoff Hampson
17-Oct-12
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