Details | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 1993 | - | 1 | /*HMC5883LRegisterScanner.pde |
| 2 | **A sketch that attempts to read every register from a slave device |
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| 3 | **Written by Wayne Truchsess http://dsscircuits.com |
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| 4 | */ |
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| 5 | |||
| 6 | #include "Wire.h" |
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| 7 | #define I2C 0x77 |
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| 8 | |||
| 9 | byte x; |
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| 10 | |||
| 11 | void setup() { |
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| 12 | Wire.begin(); |
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| 13 | Serial.begin(9600); |
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| 14 | delay(1000); |
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| 15 | } |
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| 16 | |||
| 17 | void loop() { |
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| 18 | readRegisters(); |
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| 19 | } |
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| 20 | |||
| 21 | void readRegisters() { |
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| 22 | for(int l = 0x00; l < 256; l++){ |
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| 23 | Wire.beginTransmission(I2C); |
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| 24 | Wire.send(l); |
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| 25 | Wire.endTransmission(); |
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| 26 | //delay(100); |
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| 27 | Wire.beginTransmission(I2C); |
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| 28 | Wire.requestFrom(I2C,1); |
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| 29 | x = Wire.receive(); |
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| 30 | Serial.print("Register Address "); |
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| 31 | Serial.print(l,DEC); |
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| 32 | Serial.print("_"); |
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| 33 | Serial.print(l,HEX); |
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| 34 | Serial.print(" = "); |
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| 35 | Serial.print(x,BIN); |
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| 36 | Serial.print(" = "); |
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| 37 | Serial.print(x,DEC); |
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| 38 | Serial.println(" "); |
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| 39 | Wire.endTransmission(); |
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| 40 | } |
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| 41 | } |