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add functionality to use multiple ads1115's on one i2cbus

This commit is contained in:
Kevin Baluha 2019-01-31 20:13:23 -07:00
parent 79e001caae
commit 8be3da63e1
1 changed files with 55 additions and 22 deletions
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77
sonoff/xsns_12_ads1115.ino
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@ -119,7 +119,8 @@ CONFIG REGISTER
uint8_t ads1115_type = 0;
uint8_t ads1115_address;
uint8_t ads1115_addresses[] = { ADS1115_ADDRESS_ADDR_GND, ADS1115_ADDRESS_ADDR_VDD, ADS1115_ADDRESS_ADDR_SDA, ADS1115_ADDRESS_ADDR_SCL };
uint8_t ads1115_found[] = {false,false,false,false};
int16_t ads1115_values[4];
//Ads1115StartComparator(channel, ADS1115_REG_CONFIG_MODE_SINGLE);
//Ads1115StartComparator(channel, ADS1115_REG_CONFIG_MODE_CONTIN);
void Ads1115StartComparator(uint8_t channel, uint16_t mode)
@ -161,51 +162,83 @@ void Ads1115Detect(void)
{
uint16_t buffer;
if (ads1115_type) {
return;
}
//if (ads1115_type) {
//return;
//}
for (uint8_t i = 0; i < sizeof(ads1115_addresses); i++) {
ads1115_address = ads1115_addresses[i];
if (I2cValidRead16(&buffer, ads1115_address, ADS1115_REG_POINTER_CONVERT)) {
Ads1115StartComparator(i, ADS1115_REG_CONFIG_MODE_CONTIN);
ads1115_type = 1;
ads1115_found[i] = 1;
snprintf_P(log_data, sizeof(log_data), S_LOG_I2C_FOUND_AT, "ADS1115", ads1115_address);
AddLog(LOG_LEVEL_DEBUG);
break;
//break;
}
}
}
void Ads1115GetValues(uint8_t address) {
uint8_t old_address = ads1115_address;
ads1115_address = address;
for (uint8_t i = 0; i < 4; i++) {
ads1115_values[i] = Ads1115GetConversion(i);
snprintf_P(log_data, sizeof(log_data), "Logging ADS1115 %02x (%i) = %i", address, i, ads1115_values[i] );
AddLog(LOG_LEVEL_INFO);
}
ads1115_address = old_address;
}
void Ads1115toJSON(char *comma_j) {
snprintf_P(mqtt_data, sizeof(mqtt_data), PSTR("%s%s{"), mqtt_data,comma_j);
char *comma = (char*)"";
for (uint8_t i = 0; i < 4; i++) {
snprintf_P(mqtt_data, sizeof(mqtt_data), PSTR("%s%s\"A%d\":%d"), mqtt_data, comma, i, ads1115_values[i]);
comma = (char*)",";
}
snprintf_P(mqtt_data, sizeof(mqtt_data), PSTR("%s}"), mqtt_data);
}
void Ads1115toString(uint8_t address) {
char label[15];
snprintf_P(label, sizeof(label), "ADS1115(%02x)", address);
for (uint8_t i = 0; i < 4; i++) {
snprintf_P(mqtt_data, sizeof(mqtt_data), HTTP_SNS_ANALOG, mqtt_data, label, i, ads1115_values[i]);
}
}
void Ads1115Show(bool json)
{
if (ads1115_type) {
char stemp[10];
if (!ads1115_type)
return;
uint8_t dsxflg = 0;
for (uint8_t i = 0; i < 4; i++) {
int16_t adc_value = Ads1115GetConversion(i);
if (json)
snprintf_P(mqtt_data, sizeof(mqtt_data), PSTR("%s,\"ADS1115\":["), mqtt_data);
char *comma = (char*)"";
for (uint8_t t = 0; t < sizeof(ads1115_addresses); t++) {
snprintf_P(log_data, sizeof(log_data), "Logging ADS1115 %02x", ads1115_addresses[t]);
AddLog(LOG_LEVEL_INFO);
if (ads1115_found[t]) {
Ads1115GetValues(ads1115_addresses[t]);
if (json) {
if (!dsxflg ) {
snprintf_P(mqtt_data, sizeof(mqtt_data), PSTR("%s,\"ADS1115\":{"), mqtt_data);
stemp[0] = '\0';
Ads1115toJSON(comma);
comma = (char*)",";
}
dsxflg++;
snprintf_P(mqtt_data, sizeof(mqtt_data), PSTR("%s%s\"A%d\":%d"), mqtt_data, stemp, i, adc_value);
strlcpy(stemp, ",", sizeof(stemp));
#ifdef USE_WEBSERVER
} else {
snprintf_P(mqtt_data, sizeof(mqtt_data), HTTP_SNS_ANALOG, mqtt_data, "ADS1115", i, adc_value);
else {
Ads1115toString(ads1115_addresses[t]);
}
#endif // USE_WEBSERVER
}
}
if (json) {
if (dsxflg) {
snprintf_P(mqtt_data, sizeof(mqtt_data), PSTR("%s}"), mqtt_data);
snprintf_P(mqtt_data, sizeof(mqtt_data), PSTR("%s]"), mqtt_data);
}
}
}
}
/*********************************************************************************************\