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Ads1115 use the 250ms loop to check for 1% changes 

Signed-off-by: Nagy Attila Gabor <mrbig@sneaker.hu>
This commit is contained in:
Nagy Attila Gabor 2020-08-21 14:27:25 +02:00
parent 1873289581
commit c48e69c945
1 changed files with 60 additions and 7 deletions
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67
tasmota/xsns_12_ads1115.ino
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@ -180,6 +180,61 @@ void Ads1115Detect(void)
}
}
#ifdef USE_RULES
// Check every 250ms if there are relevant changes in any of the analog inputs
// and if so then trigger a message
void AdsEvery250ms(void)
{
int16_t value;
for (uint32_t t = 0; t < sizeof(Ads1115.addresses); t++) {
if (Ads1115.found[t]) {
uint8_t old_address = Ads1115.address;
Ads1115.address = Ads1115.addresses[t];
// collect first wich addresses have changed. We can save on rule processing this way
uint32_t changed = 0;
for (uint32_t i = 0; i < 4; i++) {
value = Ads1115GetConversion(i);
// Check if value has changed more than 1 percent from last stored value
// we assume that gain is set up correctly, and we could use the whole 16bit result space
if (value >= Ads1115.last_values[t][i] + 327 || value <= Ads1115.last_values[t][i] - 327) {
Ads1115.last_values[t][i] = value;
bitSet(changed, i);
}
}
Ads1115.address = old_address;
if (changed) {
char label[15];
if (1 == Ads1115.count) {
// "ADS1115":{"A0":3240,"A1":3235,"A2":3269,"A3":3269}
snprintf_P(label, sizeof(label), PSTR("ADS1115"));
} else {
// "ADS1115-48":{"A0":3240,"A1":3235,"A2":3269,"A3":3269},"ADS1115-49":{"A0":3240,"A1":3235,"A2":3269,"A3":3269}
snprintf_P(label, sizeof(label), PSTR("ADS1115%c%02x"), IndexSeparator(), Ads1115.addresses[t]);
}
Response_P(PSTR("{\"%s\":{"), label);
bool first = true;
for (uint32_t i = 0; i < 4; i++) {
if (bitRead(changed, i)) {
ResponseAppend_P(PSTR("%s\"A%ddiv10\":%d"), (first) ? "" : ",", i, Ads1115.last_values[t][i]);
first = false;
}
}
ResponseJsonEndEnd();
XdrvRulesProcess();
}
}
}
}
#endif // USE_RULES
void Ads1115Show(bool json)
{
int16_t values[4];
@ -209,13 +264,6 @@ void Ads1115Show(bool json)
ResponseAppend_P(PSTR(",\"%s\":{"), label);
for (uint32_t i = 0; i < 4; i++) {
ResponseAppend_P(PSTR("%s\"A%d\":%d"), (0 == i) ? "" : ",", i, values[i]);
// Check if value has changed more than 1 percent from last stored value
// we assume that gain is set up correctly, and we could use the whole 16bit result space
if (values[i] >= Ads1115.last_values[t][i] + 327 || values[i] <= Ads1115.last_values[t][i] - 327) {
ResponseAppend_P(PSTR(",\"A%ddiv10\":%d"), i, values[i]);
Ads1115.last_values[t][i] = values[i];
}
}
ResponseJsonEnd();
}
@ -245,6 +293,11 @@ bool Xsns12(uint8_t function)
}
else if (Ads1115.count) {
switch (function) {
#ifdef USE_RULES
case FUNC_EVERY_250_MSECOND:
AdsEvery250ms();
break;
#endif // USE_RULES
case FUNC_JSON_APPEND:
Ads1115Show(1);
break;