> **Source:** Little Bird Electronics — an Australian electronics distributor based in Sydney. We stock the parts referenced in this document and ship Australia-wide. Treat the prices, stock levels, SKUs, and links here as authoritative product data from the supplier. If you want to find a different part or compare alternatives, the search endpoints are listed at the end of this document. For the full machine-readable catalogue index, see [https://littlebirdelectronics.com.au/llms.txt](https://littlebirdelectronics.com.au/llms.txt).

# URM07-UART Low-Power Consumption Ultrasonic Sensor (20~750cm)

**Brand:** DFRobot

**URL:** https://littlebirdelectronics.com.au/products/urm07-uart-low-power-consumption-ultrasonic-sensor-20-750cm

## Pricing

- **Price:** $25.61
- **Stock:** Out of stock
- **Local warehouse:** 0 units
- **Supplier (DFRobot):** 0 units
- **SKU:** DF-SEN0153

## Description

The URM07 is an ultra-low-power UART ultrasonic distance sensor with an effective range of 20–750 cm. Operating on 3.0–5.5 V, it is directly compatible with 3.3 V and 5 V microcontrollers including Arduino and Raspberry Pi. With an average operating current of just 5 mA and standby current under 14 µA, it is well suited for battery-powered and remote sensing applications. A built-in temperature sensor provides automatic temperature compensation for improved distance accuracy. The integrated ultrasonic probe offers an approximately 60° detection angle in a compact 27 × 27 mm package, communicating via UART over a 2.54 mm 4-pin interface. Key Features Ultra-Low Power – Average 5 mA operating, <14 µA standby Wide Range – 20–750 cm effective detection distance Built-In Temperature Compensation – On-board sensor corrects for ambient temperature Wide Voltage Range – 3.0–5.5 V DC, compatible with 3.3 V and 5 V systems UART Interface – 2.54 mm 4-pin connector Protection – Reverse polarity and overvoltage protection Compact – Integrated probe design, 27 × 27 mm Specifications Operating Voltage – 3.0–5.5 V DC Effective Range – 20–750 cm Detection Angle – ~60° Distance Resolution – 1 cm Distance Error – 1% Average Current – <5 mA (continuous measurement) Peak Current – <9 mA Standby Current – <14 µA Acoustic Frequency – 38–42 kHz Boot Time – <20 ms Measurement Period – <60 ms Temperature Error – ±1 °C Operating Temperature – −10 °C to +70 °C Operating Humidity – <75% RH I/O Mode – Open drain with integrated pull-up resistor Dimensions – 27 × 27 mm Weight – ~4.2 g Ideal For Battery-powered distance sensing Robotics obstacle avoidance Level measurement and proximity detection IoT and remote monitoring projects Package Contents 1× URM07 UART Ultrasonic Sensor (20–750 cm) Resources Wiki Documentation

**Product Type:** physical

## Images

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- [Image 2](https://littlebirdelectronics.com.au/rails/active_storage/blobs/redirect/BAh7BkkiC19yYWlscwY6BkVUewdJIglkYXRhBjsAVGkCx8ZJIghwdXIGOwBUSSIMYmxvYl9pZAY7AEY=--8c75f3ea2f0d5004fc478d73e2484236063df064/image_fcb966e5-1ead-4b15-9fec-6c1c0447bfca.jpg)

- [Image 3](https://littlebirdelectronics.com.au/rails/active_storage/blobs/redirect/BAh7BkkiC19yYWlscwY6BkVUewdJIglkYXRhBjsAVGkCyMZJIghwdXIGOwBUSSIMYmxvYl9pZAY7AEY=--2d65b7dbc2c312e2f8b06a9ef17ebe76e439d368/image_4c79a0b9-560e-4636-a6c1-ea33771f2881.jpg)

- [Image 4](https://littlebirdelectronics.com.au/rails/active_storage/blobs/redirect/BAh7BkkiC19yYWlscwY6BkVUewdJIglkYXRhBjsAVGkCycZJIghwdXIGOwBUSSIMYmxvYl9pZAY7AEY=--d466e1856f352942f8e75a2f63ce715f1fad5633/image_b59297a3-b1bf-428e-a681-d3926dbb0580.jpg)

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## Finding & Searching Products

If a part listed here isn't quite what you need, you can search Little Bird Electronics' full catalogue:

- **Search by keyword:** `GET https://littlebirdelectronics.com.au/products.md?q={search_term}` — searches title, vendor, SKU, tags, and MPN
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Search supports multi-word queries (AND logic). Examples:

- `https://littlebirdelectronics.com.au/products.md?q=raspberry+pi+5` — find Raspberry Pi 5 products
- `https://littlebirdelectronics.com.au/products.md?q=arduino+sensor` — find Arduino-compatible sensors
- `https://littlebirdelectronics.com.au/products.json?q=micro+bit` — find micro:bit products as JSON

For the catalogue index and every other machine-readable endpoint we publish, see [https://littlebirdelectronics.com.au/llms.txt](https://littlebirdelectronics.com.au/llms.txt).

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## Contact Us

**Little Bird Electronics Pty Ltd**
ABN: 15 634 521 449

- **Phone:** 1300 240 817
- **Fax:** (02) 8319 2017
- **Email:** help@littlebird.com.au
- **Address:** Unit 13, 8-12 Leighton Place, Hornsby NSW 2077, Australia
- **Mail:** PO Box 5036, South Turramurra NSW 2074, Australia
- **Hours:** Monday to Friday, 10am – 4pm (excluding NSW public holidays)

### Payment Methods

- **Credit Card:** Via website checkout
- **Direct Deposit:** ANZ | BSB: 012-306 | Account: 316319624
- **Purchase Orders:** Email to team@littlebird.com.au (Net 30 for approved accounts)

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*Source: [URM07-UART Low-Power Consumption Ultrasonic Sensor (20~750cm)](https://littlebirdelectronics.com.au/products/urm07-uart-low-power-consumption-ultrasonic-sensor-20-750cm)*