pyupm_wheelencoder module

class pyupm_wheelencoder.WheelEncoder(pin)

Bases: object

API for the DFRobot Wheel Encoder.

ID: wheelencoder

Name: Wheel Encoder

Category: other

Manufacturer: dfrobot

Link:http://www.dfrobot.com/index.php?route=product/product&product_id=98

Connection: gpio This sensor was developed for the DFRobot Wheel Encoder, though it could be used for any counting time-based task.

When you instantiate a class of this type, the gpio pin specified is connected to an interrupt. Whenever a low to high transition occurs on the gpio pin, the internal counter is incremented by one.

This class also includes a millisecond counter, so that you can correlate the number of counts to a time period for calculating an RPM or other value as needed.

C++ includes: wheelencoder.hpp

clearCounter()

void clearCounter()

Resets the counter to 0. The counter should be stopped via stopCounter() prior to calling this function.

counter()

uint32_t counter()

Gets the current counter value

counter value

getMillis()

uint32_t getMillis()

Returns the number of milliseconds elapsed since initClock() was last called.

Elapsed milliseconds

initClock()

void initClock()

Resets the clock

startCounter()

void startCounter()

Starts the counter. This function will also clear the current count and reset the clock.

stopCounter()

void stopCounter()

Stops the counter