DFRobot
SRF08 Ultrasonic Sensor
The SRF08 is an evolutionary step up from the SRF04. It requires less power to operate, has a longer range (up to 6m) and it performs its own internal tim...
The SRF08 is an evolutionary step up from the SRF04. It requires less power to operate, has a longer range (up to 6m) and it performs its own internal timing of the return echo. The SRF08 is also fitted with an LDR to measure light levels.
Communication with the SRF08 is via the I2C bus that is available on many popular microcontroller's.
SPECIFICATIONS
- Voltage - 5v only required
- Current - 15mA Typical. 3mA Standby.
- Frequency - 40KHz
- Range - 3cm -6m (1.2-236.2 in).
- Max Analogue Gain - Variable 94 to 1025 in 32 steps.
- Connection - Standard I2C Bus.
- Light Sensor - Front Facing light sensor.
- Timing - Fully timed echo, freeing host controller of task.
- Echo - Multiple echo - keeps looking after first echo.
- Units - Range reported in uS, mm or inches.
- Small Size - 43mm x 20mm x 17mm (1.7x0.8x0.7 in) height.
DOCUMENTS
SHIPPING LIST
- SRF08 ultrasonic sensor x1
Jargon buster
Plain-language definitions for the technical terms used above.
- I2C
- I2C is a two-wire communication bus used by many sensors and small modules. It matters because several I2C devices can share the same two wires, but each device needs a compatible address and your controller must support I2C.
- LDR
- A light-dependent resistor is a component whose resistance changes with light level. It is useful for simple brightness sensing, and an ADC board is needed to turn its changing analogue voltage into numbers a microcontroller or computer can read.
- microcontroller
- A microcontroller is a small computer on a chip that runs your program and controls connected inputs and outputs. For this product, it is the part that reads buttons and sensors, drives the display and speaker, and communicates over Bluetooth.
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Supplier page — dfrobot.com
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