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.

Pi Australia is operated by Little Bird, and we go to great lengths to ship your orders, often within minutes.

You can view shipping options and pricing at checkout without logging in.

For orders over 500g (such as bulky items), shipping may cost more than the initial estimate.

We deliver across Australia, and here are the options (based on your location; view them on the cart page):

• Standard Post: Starting at $7 (6+ business days, with tracking)
• Express Post: Starting at $11 (2+ business days, with tracking)
• Same Day Delivery: Available for Sydney orders.
• Non-metro WA, NT, SA, and TAS: May take an additional 2+ days.

Note: Some items, such as LiPo batteries, cannot be shipped by air. Express Post and international shipping won’t be available if these are included in your cart.

For international orders, here are rates for shipping to New Zealand (rates differ for other countries):

• Pack and Track: Starting at $12 (3+ days, with tracking)
• Express International: Starting at $16 (2-5 days, with tracking)

Shipping for heavier orders will depend on their weight.

Our address:
Little Bird
Unit 13,
8-12 Leighton Place
Hornsby, NSW 2077,
Australia
1300 240 817

For queries like whether we accept purchase orders (yes we sure do!) or if our prices include GST (they all do!), please hit us up via phone on 1300 240 817 or email us team@littlebird.com.au . We’re happy to assist with any product questions!

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