Andrew Lindsay / Adafruit_PWMServoDriver

This is a library for our Adafruit 16-channel PWM or any other board that uses the PCA9685 I2C PWM driver chip.

Dependents:   K9_Head_Controller

Diff: Adafruit_PWMServoDriver.cpp

Revision:
1:ac6c5e17c3d3
Parent:
0:ed0c8a6481fd
Child:
2:237e7b9d17c8
--- a/Adafruit_PWMServoDriver.cpp	Sat Aug 17 06:59:05 2013 +0000
+++ b/Adafruit_PWMServoDriver.cpp	Mon Aug 26 04:53:54 2013 +0000
@@ -83,5 +83,8 @@
 
 void Adafruit_PWMServoDriver::write8(uint8_t addr, uint8_t d) {
     char data[] = { addr, d };
-    _i2c->write(_i2caddr, data, 2);
+    if(_i2c->write(_i2caddr, data, 2))
+    {    
+        printf("No ACK on i2c write!");
+    }
 }
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