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application: increase heater temperature limit

This commit is contained in:
King Kévin 2020-12-16 19:46:04 +01:00
parent 5ab04af9b0
commit 03ed02b82c
1 changed files with 6 additions and 2 deletions
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8
application.c
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@ -1,4 +1,4 @@
/** STM32F4 application example
/** firmware to raise sourdough starter (also called yeast)
* @file
* @author King Kévin <kingkevin@cuvoodoo.info>
* @copyright SPDX-License-Identifier: GPL-3.0-or-later
@ -72,6 +72,10 @@ static float ir_temp = NAN; /**< yeast/sour dough starter temperature as measure
#define HEATER_PIN PB12
#define heater_on() gpio_set(GPIO_PORT(HEATER_PIN), GPIO_PIN(HEATER_PIN)) // switch transistor on to let resistor heat
#define heater_off() gpio_clear(GPIO_PORT(HEATER_PIN), GPIO_PIN(HEATER_PIN)) // switch transistor off
/** maximum heater temperature, in °C
* @note 50 °C only allowed the starter to go up to 29 °C
*/
#define HEATER_LIMIT 60.0
/** ADC channel connected to thermistor */
#define THERMISTOR_CHANNEL 6 // PA6
@ -771,7 +775,7 @@ void main(void)
heater_off(); // stop heating
}
}
if (!isnan(heater_temp) && heater_temp > 50.0) { // turn off heater for safety
if (!isnan(heater_temp) && heater_temp > HEATER_LIMIT) { // turn off heater for safety
heater_off(); // stop heating
}
// update how much the start raised