Sha256: e02b4ee6a22992a6022e0461e23a23aa61647bb9278e9e82b55a46e34aced622
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Versions: 27
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Contents
class Smoother < ArduinoPlugin
# RAD plugins are c methods, directives, external variables and assignments and calls
# that may be added to the main setup method
# function prototypes not needed since we generate them automatically
# directives, external variables and setup assignments and calls can be added rails style (not c style)
# add to directives
plugin_directives "#define ARY_SIZE 10"
# add to external variables
external_variables "int *cur, *scan, *start, *end;", "int sm_ary[ARY_SIZE];", "int last_reading = 0;"
# add the following to the setup method
add_to_setup "scan = &sm_ary[0];", "cur = &sm_ary[0];", "start = &sm_ary[0];", "end = &sm_ary[ARY_SIZE-1];"
# add an element to the array and return the average
int add_hysteresis(int reading, int hysteresis)
{
if ( ((reading - last_reading) > hysteresis) || ((last_reading - reading) > hysteresis)) {
last_reading = reading;
return reading;
}
else
return last_reading;
}
int smooth_average(int reading)
{
int sum, cnt;
cnt = 0;
sum = 0;
*cur = reading;
cur++;
for (scan = &sm_ary[0]; scan < &sm_ary[ARY_SIZE-1]; cnt++, scan++)
sum += *scan;
ptr_reset();
return sum/cnt;
}
void ptr_reset(void)
{
if (cur == end)
{
cur = &sm_ary[0];
}
}
end
Version data entries
27 entries across 27 versions & 4 rubygems