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Diffstat (limited to 'tk-calibration.h')
| -rw-r--r-- | tk-calibration.h | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/tk-calibration.h b/tk-calibration.h new file mode 100644 index 0000000..37edf76 --- /dev/null +++ b/tk-calibration.h @@ -0,0 +1,56 @@ +#ifndef TK_CALIBRATION_H +#define TK_CALIBRATION_H +/* + * Attiny calibration header. + * This allows using a single set of hardcoded values across multiple projects. + * + * Copyright (C) 2015 Selene ToyKeeper + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + * + */ + +/********************** Voltage ADC calibration **************************/ +// These values were measured using RMM's FET+7135. +// See battcheck/readings.txt for reference values. +#define ADC_42 195 // the ADC value we expect for 4.20 volts +#define ADC_100 195 // the ADC value for 100% full (4.2V resting) +#define ADC_75 186 // the ADC value for 75% full (4.0V resting) +#define ADC_50 176 // the ADC value for 50% full (3.8V resting) +#define ADC_25 162 // the ADC value for 25% full (3.5V resting) +#define ADC_0 138 // the ADC value for 0% full (3.0V resting) +#define ADC_LOW 129 // When do we start ramping down (2.8V) +#define ADC_CRIT 124 // When do we shut the light off (2.7V) + + +/********************** Offtime capacitor calibration ********************/ +// Values are between 1 and 255, and can be measured with offtime-cap.c +// See battcheck/otc-readings.txt for reference values. +// These #defines are the edge boundaries, not the center of the target. +#ifdef OFFTIM3 +// The OTC value 0.5s after being disconnected from power +// (anything higher than this is a "short press") +#define CAP_SHORT 190 +// The OTC value 1.5s after being disconnected from power +// Between CAP_MED and CAP_SHORT is a "medium press" +#define CAP_MED 94 +// Below CAP_MED is a long press +#else +// The OTC value 1.0s after being disconnected from power +// Anything higher than this is a short press, lower is a long press +#define CAP_SHORT 115 +#endif + + +#endif // TK_CALIBRATION_H |