DigitalInfinity/ESP32-PaxCounter
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sdcard: timestamp in iso8601 format

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This commit is contained in:
cyberman54 2022-01-28 20:57:31 +01:00
parent 76c465ccb7
commit 854480a051
4 changed files with 26 additions and 32 deletions
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12
README.md
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@ -256,12 +256,12 @@ The data is written to the card and after 3 write-operations the data is flushed
And finally: this is the data written to the disk: And finally: this is the data written to the disk:
date, time, wifi, bluet timestamp, wifi, ble
00.00.1970,00:01:09,2,0 2022-01-28T19:36:35Z,17,48
00.00.1970,00:02:09,1,0 2022-01-28T19:37:35Z,21,52
00.00.1970,00:03:09,2,0 2022-01-28T19:38:35Z,14,49
Format of the data is CSV, which can easily imported into LibreOffice, Excel, ..... Format of the data is CSV, timestamp is ISO8601, which can easily imported into LibreOffice, Excel, Influx, etc.
If you want to change this please look into src/sdcard.cpp and include/sdcard.h. If you want to change this please look into src/sdcard.cpp and include/sdcard.h.

2
include/sdcard.h
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@ -55,7 +55,7 @@
#endif #endif
#define SDCARD_FILE_NAME "/paxcount.%02d" #define SDCARD_FILE_NAME "/paxcount.%02d"
#define SDCARD_FILE_HEADER "date, time, wifi, bluet" #define SDCARD_FILE_HEADER "timestamp, wifi, ble"
#if (COUNT_ENS) #if (COUNT_ENS)
#define SDCARD_FILE_HEADER_CWA ",cwa" #define SDCARD_FILE_HEADER_CWA ",cwa"

21
src/sdcard.cpp
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@ -42,11 +42,10 @@ bool sdcard_init() {
void sdcardWriteData(uint16_t noWifi, uint16_t noBle, void sdcardWriteData(uint16_t noWifi, uint16_t noBle,
__attribute__((unused)) uint16_t noBleCWA) { __attribute__((unused)) uint16_t noBleCWA) {
static int counterWrites = 0; static int counterWrites = 0;
char tempBuffer[12 + 1]; char tempBuffer[20 + 1];
time_t t = time(NULL); time_t t = time(NULL);
struct tm tt; struct tm tt;
localtime_r(&t, &tt); gmtime_r(&t, &tt); // make UTC timestamp
mktime(&tt);
#if (HAS_SDS011) #if (HAS_SDS011)
sdsStatus_t sds; sdsStatus_t sds;
@ -56,19 +55,17 @@ void sdcardWriteData(uint16_t noWifi, uint16_t noBle,
return; return;
ESP_LOGD(TAG, "writing to SD-card"); ESP_LOGD(TAG, "writing to SD-card");
strftime(tempBuffer, sizeof(tempBuffer), "%d.%m.%Y", &tt); strftime(tempBuffer, sizeof(tempBuffer), "%FT%TZ", &tt);
fileSDCard.print(tempBuffer); fileSDCard.print(tempBuffer);
strftime(tempBuffer, sizeof(tempBuffer), "%H.%M.%S", &tt); snprintf(tempBuffer, sizeof(tempBuffer), ",%d,%d", noWifi, noBle);
fileSDCard.print(tempBuffer);
sprintf(tempBuffer, "%d,%d", noWifi, noBle);
fileSDCard.print(tempBuffer); fileSDCard.print(tempBuffer);
#if (COUNT_ENS) #if (COUNT_ENS)
sprintf(tempBuffer, ",%d", noBleCWA); snprintf(tempBuffer, sizeof(tempBuffer), ",%d", noBleCWA);
fileSDCard.print(tempBuffer); fileSDCard.print(tempBuffer);
#endif #endif
#if (HAS_SDS011) #if (HAS_SDS011)
sds011_store(&sds); sds011_store(&sds);
sprintf(tempBuffer, ",%5.1f,%4.1f", sds.pm10, sds.pm25); snprintf(tempBuffer, sizeof(tempBuffer), ",%5.1f,%4.1f", sds.pm10, sds.pm25);
fileSDCard.print(tempBuffer); fileSDCard.print(tempBuffer);
#endif #endif
fileSDCard.println(); fileSDCard.println();
@ -88,7 +85,7 @@ void createFile(void) {
for (int i = 0; i < 100; i++) { for (int i = 0; i < 100; i++) {
sprintf(bufferFilename, SDCARD_FILE_NAME, i); sprintf(bufferFilename, SDCARD_FILE_NAME, i);
// ESP_LOGD(TAG, "SD: looking for file <%s>", bufferFilename); ESP_LOGD(TAG, "SD: looking for file <%s>", bufferFilename);
#if HAS_SDCARD == 1 #if HAS_SDCARD == 1
bool fileExists = SD.exists(bufferFilename); bool fileExists = SD.exists(bufferFilename);
@ -97,7 +94,7 @@ void createFile(void) {
#endif #endif
if (!fileExists) { if (!fileExists) {
// ESP_LOGD(TAG, "SD: file does not exist: opening"); ESP_LOGD(TAG, "SD: file does not exist: creating");
#if HAS_SDCARD == 1 #if HAS_SDCARD == 1
fileSDCard = SD.open(bufferFilename, FILE_WRITE); fileSDCard = SD.open(bufferFilename, FILE_WRITE);
@ -106,7 +103,7 @@ void createFile(void) {
#endif #endif
if (fileSDCard) { if (fileSDCard) {
ESP_LOGD(TAG, "SD: name opened: <%s>", bufferFilename); ESP_LOGD(TAG, "SD: file opened: <%s>", bufferFilename);
fileSDCard.print(SDCARD_FILE_HEADER); fileSDCard.print(SDCARD_FILE_HEADER);
#if (COUNT_ENS) #if (COUNT_ENS)
fileSDCard.print(SDCARD_FILE_HEADER_CWA); // for Corona-data (CWA) fileSDCard.print(SDCARD_FILE_HEADER_CWA); // for Corona-data (CWA)

23
src/senddata.cpp
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@ -65,18 +65,6 @@ void SendPayload(uint8_t port) {
mqtt_enqueuedata(&SendBuffer); mqtt_enqueuedata(&SendBuffer);
#endif #endif
// write data to sdcard, if present
#if (HAS_SDCARD)
if (port == COUNTERPORT) {
sdcardWriteData(libpax_macs_wifi, libpax_macs_ble
#if (COUNT_ENS)
,
cwa_report()
#endif
);
}
#endif
} // SendPayload } // SendPayload
// interrupt triggered function to prepare payload to send // interrupt triggered function to prepare payload to send
@ -130,7 +118,16 @@ void sendData() {
#ifdef HAS_DISPLAY #ifdef HAS_DISPLAY
dp_plotCurve(libpax_macs_ble + libpax_macs_wifi, true); dp_plotCurve(libpax_macs_ble + libpax_macs_wifi, true);
#endif #endif
break; #if (HAS_SDCARD)
sdcardWriteData(libpax_macs_wifi, libpax_macs_ble
#if (COUNT_ENS)
,
cwa_report()
#endif
);
#endif // HAS_SDCARD
break; // case COUNTDATA
#endif #endif
#if (HAS_BME) #if (HAS_BME)