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Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
@HughB
Ok - so I think in practice the Test Harness results are a bit on the optimistic side.
Just added a couple of recordings and logged what the Javascript version recorded.
Does the M value come from the chip or is it calculated by the firmware ?
gcc -std=c99 main.c -o main
github.com/gfwilliams/step-count
X_STEPS = 8, RAW_THRESHOLD = 17
File, Expected, Simulated, Diff, (Orignal)
HughB-walk-1834.csv, 1834, 1754, -80, (1093)
HughB-walk-2331.csv, 2331, 2143, -188, (1874)
HughB-walking-2350.csv, 2350, 2198, -152, (1042)
HughB-walk-6605.csv, 6605, 6012, -593, (3223) // actual 3.12 => 5261 ie -1344 under
HughB-driving-36min.csv, 0, 13, 13, (1199)
HughB-driving-29min.csv, 0, 46, 46, (1153)
HughB-driving-18.csv, 18, 78, 60, (580) // actual 3.12 => 9
HughB-working-1h.csv, 0, 0, 0, (760)
Hughb-work-66.csv, 66, 56, -10, (980)
HughB-mixed-390.csv, 390, 356, -34, (1871)
TOTAL DIFFERENCE 1455