SRF01 Ultrasonic Ranger
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Datasheet
Overview:
The SRF01 is a single transducer ultrasonic rangefinder which can measure in cm or inch. Connection is to a single pin Serial interface. The serial interface is a standard TTL level UART format of 1 start, 1 stop and no parity bits, and may be connected directly to many controllers, such as the Basic Stamps or the PICAXE. Baud rate at power-up is always 9600, there is a command to change this to 19200 or 38400 baud if preferred. Up to 16 SRF01's may be connected together on a single bus.
On the bottom of this page you can see an example of a working circuit, we have also provided an .ino file for you.
Specifications:
- Power supply voltage: 3.3-12V (5.5V recommended)
- Serial communication (9600/19200/38400 baud)
- A single serial bus can handle up to 16 SRF01's.
- Device addresses: 0-16 (0 refers to all)
- For commands check the datasheet.
- Standard mode distance: from 18cm (7 inches) to 600cm (19ft)
Circuit Example and Arduino Codes:
The SRF01 uses a single pin for both serial input and output. By using a software serial port, we can make the Arduino do serial input and output on a single pin as well. You can have up to 16 SRF01's connected to a single pin on the Arduino. The Range is displayed on an LCD03 module.
Download the arduino-srf01-a.zip file.