LED Matrix used as an I/O Test Utility

Description This Spin2 example uses a technique known as Charlieplexing to verify that the pins on the P2 and its associated circuit traces on the host board are functioning correctly. In a typical LED blink example, a single general-purpose input/output (GPIO) pin is used to drive/power/light a single load/device/LED. The LED is both a device […]

Quadrature Encoder Object

Description These three source code examples interface a quadrature encoder clock, data and button signals to the Propeller 2. The first two versions are useful for seeing the internals of the encoder signals, but the third version is a demo with its own encoder object.  Rotary_Encoder_Demo1_Archive.zip – read a quadrature encoder with Spin2 and PASM […]