Ultrasonic Sensor (SRF08) to Rp6

[i_make_it]

Address information for the SRF08 you can find in the document:
http://coecsl.ece.illinois.edu/ge423...onicRanger.pdf

On Page 3 you will find:
The default shipped address of the SRF08 is 0xE0. It can be changed by the user to any of 16 addresses E0, E2, E4, E6, E8, EA, EC, EE, F0, F2, F4, F6, F8, FA, FC or FE, therefore up to 16 sonar's can be used. In addition to the above addresses, all sonar's on the I2C bus will respond to address 0 - the General Broadcast address. This means that writing a ranging command to I2C address 0 (0x00) will start all sonar's ranging at the same time.

If your SRF08 is brand new it will respond on address 0xE0.
If it is a used one, you don't know, if the former owner has changed the address.
Then you can start Ranging with Address 0x00 and poll all 16 posible addresses for a value.
So you can find out the address.

[Dirk]

Hi arnob,

You don't need additional pullup resistors on the RP6.

[arnob]

It worked with #define SRF_ADR 0xE2
No pull up resistors. now terminal shows distance of objects.

Thnaks a lot.