fixed_t adc_to_volt(uint16_t adc, calibrate_t *cal)
{
uint32_t tmp;
tmp = adc * cal->a;
if (tmp > cal->b)
tmp -= cal->b;
else
tmp = 0;
return fixed_round(tmp);
}
void temp_handler(void) {
temp_samples[sample++] = make_fixed(raw_temp);
if (sample == N_SAMPLES) {
fixed_t t = make_fixed(0);
for (uint8_t i = 0; i < N_SAMPLES; i++) {
t = fixed_add(t, temp_samples[i]);
}
temp = fixed_round(fixed_div(fixed_div(t, N_SAMPLES), 4));
set_number(0, temp, relay_on);
sample = 0;
}
}