sdcard logging: add voltage, remove cwa
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@ -252,16 +252,17 @@ These cheap devices often handle SD-cards up to 32GB, not bigger ones. They can
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The software included here writes data in a file named PAXCOUNT.xx, where xx can range from 00 to 99. The software starts with 00, checks to see if such a file already exists and if yes it will continue with the next number (up to 99 - in this case it will return no sd-card). So an existing file will not be overwritten.
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The data is written to the card and after 3 write-operations the data is flushed to the disk. So maybe the last 3 minutes of data get lost when you disconnect the PAXCOUNTER from power.
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The data is written to the card and after 3 write-operations the data is flushed to the disk. Thus, up to the last 3 records of data will get lost when the PAXCOUNTER looses power.
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And finally: this is the data written to the disk:
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timestamp, wifi, ble
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timestamp,wifi,ble[,voltage]
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2022-01-28T19:36:35Z,17,48
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2022-01-28T19:37:35Z,21,52
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2022-01-28T19:38:35Z,14,49
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Format of the data is CSV, timestamp is ISO8601, which can easily imported into LibreOffice, Excel, Influx, etc.
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Voltage is logged, if the device has a battery voltage sensor (to be configure in board hal file).
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If you want to change this please look into src/sdcard.cpp and include/sdcard.h.
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@ -55,10 +55,10 @@
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#endif
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#define SDCARD_FILE_NAME "/paxcount.%02d"
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#define SDCARD_FILE_HEADER "timestamp, wifi, ble"
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#define SDCARD_FILE_HEADER "timestamp,wifi,ble"
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#if (COUNT_ENS)
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#define SDCARD_FILE_HEADER_CWA ",cwa"
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#if (defined BAT_MEASURE_ADC || defined HAS_PMU)
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#define SDCARD_FILE_HEADER_VOLTAGE ",voltage"
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#endif
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bool sdcard_init(void);
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@ -40,7 +40,7 @@ bool sdcard_init() {
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}
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void sdcardWriteData(uint16_t noWifi, uint16_t noBle,
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__attribute__((unused)) uint16_t noBleCWA) {
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__attribute__((unused)) uint16_t voltage) {
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static int counterWrites = 0;
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char tempBuffer[20 + 1];
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time_t t = time(NULL);
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@ -59,8 +59,8 @@ void sdcardWriteData(uint16_t noWifi, uint16_t noBle,
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fileSDCard.print(tempBuffer);
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snprintf(tempBuffer, sizeof(tempBuffer), ",%d,%d", noWifi, noBle);
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fileSDCard.print(tempBuffer);
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#if (COUNT_ENS)
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snprintf(tempBuffer, sizeof(tempBuffer), ",%d", noBleCWA);
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#if (defined BAT_MEASURE_ADC || defined HAS_PMU)
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snprintf(tempBuffer, sizeof(tempBuffer), ",%d", voltage);
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fileSDCard.print(tempBuffer);
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#endif
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#if (HAS_SDS011)
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@ -105,8 +105,8 @@ void createFile(void) {
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if (fileSDCard) {
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ESP_LOGD(TAG, "SD: file opened: <%s>", bufferFilename);
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fileSDCard.print(SDCARD_FILE_HEADER);
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#if (COUNT_ENS)
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fileSDCard.print(SDCARD_FILE_HEADER_CWA); // for Corona-data (CWA)
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#if (defined BAT_MEASURE_ADC || defined HAS_PMU)
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fileSDCard.print(SDCARD_FILE_HEADER_VOLTAGE); // for battery level data
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#endif
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#if (HAS_SDS011)
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fileSDCard.print(SDCARD_FILE_HEADER_SDS011);
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@ -120,9 +120,9 @@ void sendData() {
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#endif
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#if (HAS_SDCARD)
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sdcardWriteData(libpax_macs_wifi, libpax_macs_ble
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#if (COUNT_ENS)
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#if (defined BAT_MEASURE_ADC || defined HAS_PMU)
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,
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cwa_report()
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read_voltage()
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#endif
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);
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#endif // HAS_SDCARD
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