Use bitsToUIntLe for RPM data channel
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@ -14,7 +14,7 @@ Accelerator position (%) | 320 | `A/2.55` |
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Brake position (%) | 209 | `min(C / 0.7, 100)` | The 0.7 divider seems to be a good value to get 100% at pressure slightly higher than those you're likely to use on the track for cars with no aero. You can use 0.8 or 0.9 if you see 100% too often.
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Steering angle | 208 | `bytesToIntLe(raw, 0, 2) * 0.1` | Positive value = turning right. You can add a `-` if you prefer it the other way around.
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Speed | 209 | `bytesToIntLe(raw, 0, 2) * 0.015694` | May want to check the multiplier against an external GPS aevice
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Engine RPM | 320 | `C + (D & 0x3f) * 256` |
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Engine RPM | 320 | `bitsToUIntLe(raw, 16, 14)` |
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Coolant temperature | 864 | `D - 40` |
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Engine oil temperature | 864 | `C - 40` |
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@ -143,7 +143,7 @@ Accelerator position | `A / 2.55`
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Clutch position | `(B & 0x80) / 1.28` | On/off only
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??? | B & 0x70 | Unused?
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??? | B & 0x0f | 0–15 counter?
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Engine RPM | `C + (D & 0x3f) * 256`
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Engine RPM | `bitsToUIntLe(raw, 16, 14)`
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??? | `D & 0x80` | Always 0?
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??? | `D & 0x40` | 1 when accelerator pedal is released, 0 otherwise
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Accelerator position | `E / 2.55` | Not clear what's the difference from the other two
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@ -159,7 +159,7 @@ Channel name | Equation | Notes
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------------ | -------- | -----
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Accelerator pedal position? | `bytesToIntLe(raw, 0, 2)` | Follows `A` from `0x140` closely with ~9860 for 0% and ~11625 for 42%. Needs more testing.
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Engine load? | `bytesToIntLe(raw, 2, 2)` | Follows the data from OBD PIDs 0x4 and 0x43 pretty well.
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Engine RPM | `E + (F & 0x3f) * 256`
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Engine RPM | `bitsToUIntLe(raw, 32, 14)`
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??? | `F & 0x80` | 1 when accelerator pedal is released, 0 otherwise
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??? | `F & 0x40` | Always 0?
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Gear | `(G & 0xf) * (1 - (min(G & 0xf, 7)) / 7)` | It's basically just `G & 0xf` but neutral is reported as `7`, hence the complex math to turn it into a 0. The reverse gear is reported as `1`. The value can be wrong when the clutch pedal is depressed.
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