Open brettjurgens opened 6 months ago
I've been working on an app for my peloton on and off for the last few years. Your blog posts were incredibly helpful in helping get the sensor data.
I thought I could help out a little bit... From what I've found, the proper way to calculate resistance is:
// CALIBRATION is a float array private fun getCalibrationValue(raw: Float, i: Int): Float { if (i == 0) return 0.0f val prevIndex = i - 1 val prevIndexVal = CALIBRATION[prevIndex] val currIndexVal = CALIBRATION[i] val size = CALIBRATION.size var f = 0f if (currIndexVal > prevIndexVal) { f = (raw - prevIndexVal) / (currIndexVal - prevIndexVal) } return (prevIndex.toFloat() + f) * 100.0f / (size - 1).toFloat() } fun calculateResistance(raw: Float): Float { val calibrationLen = CALIBRATION.size if (raw < CALIBRATION[0]) return 0.0f if (raw > CALIBRATION[calibrationLen - 1]) return 100.0f if (raw < CALIBRATION[3]) return (raw - CALIBRATION[0]) * 10.0f / (CALIBRATION[3] - CALIBRATION[0]) if (raw > CALIBRATION[27]) return (raw - CALIBRATION[27]) * 10.0f / (CALIBRATION[30] - CALIBRATION[27]) + 90.0f for (i in 0 until calibrationLen) { if (raw >= CALIBRATION[i]) continue return getCalibrationValue(raw, i) } return -1.0f }
Hope this is helpful!
I've been working on an app for my peloton on and off for the last few years. Your blog posts were incredibly helpful in helping get the sensor data.
I thought I could help out a little bit... From what I've found, the proper way to calculate resistance is:
Hope this is helpful!