Computing Number of Steps: Online

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Section 17.3 Computing Number of Steps: Online

The benefit of post-processing in Python is that the CPX/CPB run a almost identical derivative of Python called CircuitPython. This means that almost any line of code used in Python can be copied directly onto the CPX/CPB as shown in the Figure below.

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Figure 17.3.1. CircuitPython code to count steps on the CircuitPlayground Express
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You can see that the STEPS counter is set to zero before the infinite while loop and then after connection the RESET flag and bias value are checked for a switch from positive to negative. Some code is added to change the pixels on the CPB so that the user can see a step change. The raw data is still transmitted via bluetooth but it would be a neat exercise to have the CPB transmit the number of steps to a cell phone for instant feedback of the number of steps.

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