aboutsummaryrefslogtreecommitdiff
path: root/libraries/Wire/examples/SFRRanger_reader
diff options
context:
space:
mode:
authorDavid A. Mellis <d.mellis@arduino.cc>2009-11-07 17:54:56 +0000
committerDavid A. Mellis <d.mellis@arduino.cc>2009-11-07 17:54:56 +0000
commit6005c59ad03446153c66a991f01ac91c31d98dac (patch)
tree4c599359fd35066a81b8b9fe99042e325c03c6ed /libraries/Wire/examples/SFRRanger_reader
parent584dece7b0c982de8731f7400c94b5034aef89e7 (diff)
Moving libraries out of arduino platform / core directory and to top-level.
Diffstat (limited to 'libraries/Wire/examples/SFRRanger_reader')
-rwxr-xr-xlibraries/Wire/examples/SFRRanger_reader/SFRRanger_reader.pde84
1 files changed, 0 insertions, 84 deletions
diff --git a/libraries/Wire/examples/SFRRanger_reader/SFRRanger_reader.pde b/libraries/Wire/examples/SFRRanger_reader/SFRRanger_reader.pde
deleted file mode 100755
index c89b0f0..0000000
--- a/libraries/Wire/examples/SFRRanger_reader/SFRRanger_reader.pde
+++ /dev/null
@@ -1,84 +0,0 @@
-// I2C SRF10 or SRF08 Devantech Ultrasonic Ranger Finder
-// by Nicholas Zambetti <http://www.zambetti.com>
-// and James Tichenor <http://www.jamestichenor.net>
-
-// Demonstrates use of the Wire library reading data from the
-// Devantech Utrasonic Rangers SFR08 and SFR10
-
-// Created 29 April 2006
-
-#include <Wire.h>
-
-void setup()
-{
- Wire.begin(); // join i2c bus (address optional for master)
- Serial.begin(9600); // start serial communication at 9600bps
-}
-
-int reading = 0;
-
-void loop()
-{
- // step 1: instruct sensor to read echoes
- Wire.beginTransmission(112); // transmit to device #112 (0x70)
- // the address specified in the datasheet is 224 (0xE0)
- // but i2c adressing uses the high 7 bits so it's 112
- Wire.send(0x00); // sets register pointer to the command register (0x00)
- Wire.send(0x50); // command sensor to measure in "inches" (0x50)
- // use 0x51 for centimeters
- // use 0x52 for ping microseconds
- Wire.endTransmission(); // stop transmitting
-
- // step 2: wait for readings to happen
- delay(70); // datasheet suggests at least 65 milliseconds
-
- // step 3: instruct sensor to return a particular echo reading
- Wire.beginTransmission(112); // transmit to device #112
- Wire.send(0x02); // sets register pointer to echo #1 register (0x02)
- Wire.endTransmission(); // stop transmitting
-
- // step 4: request reading from sensor
- Wire.requestFrom(112, 2); // request 2 bytes from slave device #112
-
- // step 5: receive reading from sensor
- if(2 <= Wire.available()) // if two bytes were received
- {
- reading = Wire.receive(); // receive high byte (overwrites previous reading)
- reading = reading << 8; // shift high byte to be high 8 bits
- reading |= Wire.receive(); // receive low byte as lower 8 bits
- Serial.println(reading); // print the reading
- }
-
- delay(250); // wait a bit since people have to read the output :)
-}
-
-
-/*
-
-// The following code changes the address of a Devantech Ultrasonic Range Finder (SRF10 or SRF08)
-// usage: changeAddress(0x70, 0xE6);
-
-void changeAddress(byte oldAddress, byte newAddress)
-{
- Wire.beginTransmission(oldAddress);
- Wire.send(0x00);
- Wire.send(0xA0);
- Wire.endTransmission();
-
- Wire.beginTransmission(oldAddress);
- Wire.send(0x00);
- Wire.send(0xAA);
- Wire.endTransmission();
-
- Wire.beginTransmission(oldAddress);
- Wire.send(0x00);
- Wire.send(0xA5);
- Wire.endTransmission();
-
- Wire.beginTransmission(oldAddress);
- Wire.send(0x00);
- Wire.send(newAddress);
- Wire.endTransmission();
-}
-
-*/