#include "gas_sensor.h"
#include "bsp/bsp.h"
#include "bsp/adc.h"
#include "libs/utils.h"

static gas_t _gas;
void gas_sensor_init(void){
	_gas.voltage = 0;
	_gas.lowpass = 5;
	gas_sample_voltage();
}

float gas_sample_voltage(void){
	u32 vadc = adc_sample_regular_channel(HANDLERBAR_CHAN, 16);
	_gas.voltage = vadc * ADC_REFERENCE_VOLTAGE /4096.0f;
	
	return MAX(min(_gas.voltage, MIN_GAS_VALUE), MAX_GAS_VALUE);
}

/* 检测到有效转把信号 */
bool gas_detect_speed_signal(void) {
	return _gas.voltage > MIN_GAS_VALUE;
}