If you need to add distance awareness to your robot or low altitude sensor for your drone, this is one of the easiest and most commonly used ways.
Specifications
- Power supply: 5V DC
- Quiescent current: <2mA
- Effectual angle: <15°
- Ranging distance: 2cm – 500 cm
- Resolution: 1 cm
- Ultrasonic Frequency: 40k Hz
Sequence chart
A short ultrasonic pulse is transmitted at the time 0, reflected by an object. The sensor receives this signal and converts it to an electric signal. The next pulse can be transmitted when the echo is faded away. This time period is called the cycle period. The recommend cycle period should be no less than 50ms. If a 10μs width trigger pulse is sent to the signal pin, the Ultrasonic module will output eight 40kHz ultrasonic signal and detect the echo back. The measured distance is proportional to the echo pulse width, and can be calculated by the formula above. If no obstacle is detected, the output pin will give a 38ms high level signal.
Buy with Confidence
We're Australia's only Raspberry Pi approved reseller in Sydney, Australia.
How do you Ship your Raspberry Pis?
We ship via Australia Post eParcel from our Sydney warehouse.
Australia Post picks up from us daily.
All shipping methods we use have tracking.
Do you ship from Sydney, Australia?
All our products ship from our warehouse in Sydney, Australia.
What payment methods do you accept?
We accept all major credit cards, Apple Pay, Google Pay and PayPal.
We also accept purchase orders from educational and government institutions on 30-day terms.
You're automatically approved if you're a school, university, or state or federal government department or agency.
What is your return, exchange and warranty policy?
Returns
We accept returns for faulty products, but will first work with you to help get your Raspberry Pi working again.
99% of the time there it is not the Raspberry Pi that is faulty.
If you need help, reach out to us on help@littlebird.com.au.
Change of Mind
We are happy to accept a return for a "change of mind", however, you will need to cover the cost of any merchant fees associated with the return. Goods need to be in an "as new" state.
What's the warranty on your Raspberry Pis?
You can have peace of mind knowing that Raspberry Pi is backed by a 1-year warranty, and thanks to rigorous quality assurance testing in the UK factory, you can be sure that your Raspberry Pi will stay in good working condition.
How long does shipping and delivery take?
At our Sydney, Australia warehouse, we provide fast and reliable shipping. To go even further, we have created our own Raspberry Pi powered Robot called Bishop.
How long does delivery take?
Australia Post picks up from us daily. If you're within the Australia Post next day network you can usually expect your order to arrive the next day if ordered with Express Post before 2pm.
80% of Australian addresses covered and you probably already know if you're in the network.
How can I track my order?
When we ship your order (which we do daily), we send you a tracking link.
If you haven't received a tracking link, please email us on help@littlebird.com.au .
How do I contact customer service?
You can call us on 1300 240 817 or email help@littlebird.com.au .
Do you have a secure website?
Yes, our website is secure and we use the latest security features to ensure your data is always kept safe.
Can I get my order shipped to a PO Box or Parcel Locker?
If you want to ship to a PO Box, Parcel Locker or another otherwise anonymising delivery address, we need you to use Paypal at checkout.
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