Ping still rocks...

The last batch of 20 HC-SR04's I got seems to be all defective, and of course, it is not worth returning to China for a refund (postage would cost more than the refund)

Sigh. / E-mail: mikronauts _at_ gmail _dot_ com / @Mikronauts on Twitter
RoboPi: The most advanced Robot controller for the Raspberry Pi (Propeller based)


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