Ich weiß nicht genau ob 100 Meßpunkte hier gehen, da das ganze Programm für die Charts hier nicht so funktioniert. Das mit PROGMEM war nur ein Versuch den String im Flash zusammen zustellen, da dort nach Datenblatt Nano-ESP32-S3 16Mb sein sollten. Auf meinem Nano 33 IOT hat eine Datei nach ca. 16 Tagen 70 Kb.
Das ist ein Auschnitt von vor 2 Tagen on dem Nano 33 IOT. Auf dem Nano 33 IOT läuft dieser Code mit der WIFININA.h soweit.
/*
SD card datalogger
This example shows how to log data from three analog sensors
to an SD card using the SD library.
The circuit:
analog sensors on analog ins 0, 1, and 2
SD card attached to SPI bus as follows:
** MOSI - pin 11
** MISO - pin 12
** CLK - pin 13
** CS - pin 4 (for MKRZero SD: SDCARD_SS_PIN)
created 24 Nov 2010
modified 9 Apr 2012
by Tom Igoe
This example code is in the public domain.
*/
#include <SPI.h>
#include <SD.h>
File root;
File myFile;
const int chipSelect = 10;
String myString = "";
String Uhrzeit = "";
char currentChar;
float value;
int actualFilenumber;
void readDataChartXM(WiFiClient client, String datei){
int j = 0;
myFile = SD.open(datei);
if (myFile) {
Serial.println(datei);
// read from the file until there's nothing else in it:
while (myFile.available()) {
currentChar = myFile.read();
if (currentChar == ';'){
if (j == 0){
client.print("\"" + myString + "\"" + ",");
j = 1;
}else{
j=0;
}
myString = "";
}else if(currentChar != '\r' && currentChar != '\n'){
myString += currentChar;
}
}
// close the file:
myFile.close();
} else {
// if the file didn't open, print an error:
Serial.println("error opening" + datei);
}
}
void readDataChart(WiFiClient client, String datei){
int j = 0;
myFile = SD.open(datei);
if (myFile) {
Serial.println(datei);
// read from the file until there's nothing else in it:
while (myFile.available()) {
currentChar = myFile.read();
if (currentChar == ';'){
if (j == 0){
j = 1;
}else{
client.print(myString + ",");
j=0;
}
myString = "";
}else if(currentChar != '\r' && currentChar != '\n'){
myString += currentChar;
}
}
// close the file:
myFile.close();
} else {
// if the file didn't open, print an error:
Serial.println("error opening " + datei);
}
}
void readDataWifi(WiFiClient client){
int i = 0;
myFile = SD.open("datalog3.txt");
if (myFile) {
Serial.println("test.txt:");
// read from the file until there's nothing else in it:
while (myFile.available()) {
currentChar = myFile.read();
if (currentChar == ';'){
client.print(myString);
client.println();
myString = "";
}else{
//client.write(currentChar);
myString += currentChar;
}
}
// close the file:
myFile.close();
} else {
// if the file didn't open, print an error:
Serial.println("error opening test.txt");
}
}
void clientIncreaseFilenumber(){
actualFilenumber += 1;
}
void printDirectory(File dir, int numTabs) {
while (true) {
File entry = dir.openNextFile();
if (! entry) {
// no more files
break;
}
for (uint8_t i = 0; i < numTabs; i++) {
Serial.print('\t');
}
Serial.print(entry.name());
if (entry.isDirectory()) {
Serial.println("/");
printDirectory(entry, numTabs + 1);
} else {
// files have sizes, directories do not
Serial.print("\t\t");
Serial.println(entry.size(), DEC);
}
entry.close();
}
}
void printRoot() {
root = SD.open("/");
printDirectory(root, 0);
}
void clientprintDirectory(File dir, int numTabs, WiFiClient client) {
while (true) {
File entry = dir.openNextFile();
if (! entry) {
// no more files
break;
}
for (uint8_t i = 0; i < numTabs; i++) {
client.print('\t');
}
client.print(entry.name());
if (entry.isDirectory()) {
client.println("/");
clientprintDirectory(entry, numTabs + 1, client);
} else {
// files have sizes, directories do not
client.print("\t\t");
client.println(entry.size(), DEC);
}
entry.close();
}
}
void clientprintRoot(WiFiClient client) {
root = SD.open("/");
client.println("HTTP/1.1 200 OK");
client.println("Content-Type: text/html");
client.println("Connection: close");
client.println();
client.println("<!DOCTYPE HTML>");
client.println("<html>");
client.println("<style>");
client.println("textarea{width:300px;height:300px;}");
client.println("</style>");
client.println("<form>");
client.print("<textarea>");
clientprintDirectory(root, 0, client);
client.print("</textarea>");
client.println("</form>");
client.println("</html>");
client.println();
}
void clientWifiStatus(WiFiClient client) {
// print the SSID of the network you're attached to:
client.print("SSID: ");
client.println(WiFi.SSID());
// print your board's IP address:
IPAddress ip = WiFi.localIP();
client.print("IP Address: ");
client.println(ip);
// print the received signal strength:
long rssi = WiFi.RSSI();
client.print("signal strength (RSSI):");
client.print(rssi);
client.println(" dBm");
}
void writeData(String filename, String data){
String dataString = Uhrzeit + ";" + data + ";";
// open the file. note that only one file can be open at a time,
// so you have to close this one before opening another.
File dataFile = SD.open(filename, FILE_WRITE);
// if the file is available, write to it:
if (dataFile) {
dataFile.println(dataString);
dataFile.close();
}
// if the file isn't open, pop up an error:
else {
Serial.println("error opening " + filename);
}
}
void setup_sd() {
Serial.print("Initializing SD card...");
// see if the card is present and can be initialized:
if (!SD.begin(chipSelect)) {
Serial.println("Card failed, or not present");
// don't do anything more:
while (1);
}
printRoot();
Serial.println("card initialized.");
}
void loop_sd() {
writeData(actualFilenumber + "_temp1.txt", String(tempOutside));
writeData(actualFilenumber + "_temp2.txt", String(tempOutside2));
writeData(actualFilenumber + "_temp3.txt", String(tempOutside3));
writeData(actualFilenumber + "_tmp.txt", String(tmp));
writeData(actualFilenumber + "_CO2.txt", String(CO2));
writeData(actualFilenumber + "_humi.txt", String(humi));
writeData(actualFilenumber + "_moist1.txt", String(sensorValue));
writeData(actualFilenumber + "_moist2.txt", String(sensorValue2));
writeData(actualFilenumber + "_moist3.txt", String(sensorValue3));
writeData(actualFilenumber + "_dist.txt", String(distance));
writeData(actualFilenumber + "_air.txt", String(airValue));
}
void addPHeader(WiFiClient client){
client.println("HTTP/1.1 200 OK");
client.println("Content-Type: text/plain");
client.println("Connection: close"); // the connection will be closed after completion of the response
//client.println("Refresh: 5"); // refresh the page automatically every 5 sec
client.println();
}
void addHeader(WiFiClient client){
client.println("HTTP/1.1 200 OK");
client.println("Content-Type: text/html");
client.println("Connection: close"); // the connection will be closed after completion of the response
//client.println("Refresh: 5"); // refresh the page automatically every 5 sec
client.println();
}
void addLink(WiFiClient client){
String Link = R"=====(<script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.5.0/Chart.min.js"></script>)=====";
client.print(Link);
}
void addCanvas(WiFiClient client, String id){
String First = R"=====(<canvas id=")=====";
String Second = R"=====(" style="width:100%;max-width:1800px"></canvas>
)=====";
client.print(First);
client.print(String(id));
client.print(Second);
}
void loadCharts(WiFiClient client, String name){
String First2 = R"=====(
new Chart(")=====";
String First3 = R"=====(", {
type: "line",
data: {
labels: xValues,
datasets: [{
)=====";
String Second = R"=====(
borderColor: "red",
fill: false
}, {
)=====";
String Third = R"=====(
borderColor: "green",
fill: false
}, {
)=====";
String Fourth = R"=====(
borderColor: "Orange",
fill: false
}, {
)=====";
String Fifth = R"=====(
borderColor: "blue",
fill: false
}]
},
options: {
legend: {display: false}
}
});
)=====";
client.print("<script>");
client.print("const xValues = [");
readDataChartXM(client, actualFilenumber + "_temp1.txt");
client.print("];");
client.print(First2);
client.print(name);
client.print(First3);
client.print("data: [");
readDataChart(client, actualFilenumber + "_temp1.txt");
client.print("],");
client.print(Second);
//readDataChart2(client);
client.print("data: [");
readDataChart(client, actualFilenumber + "_temp2.txt");
client.print("],");
client.print(Third);
//readDataChart3(client);
client.print("data: [");
readDataChart(client, actualFilenumber + "_temp3.txt");
client.print("],");
client.print(Fourth);
//readDataChart4(client);
client.print("data: [");
readDataChart(client, actualFilenumber + "_tmp.txt");
client.print("],");
client.print(Fifth);
client.print("</script>");
}
void loadNewChart(WiFiClient client, String name){
String First2 = R"=====(
new Chart(")=====";
String First3 = R"=====(", {
type: "line",
data: {
labels: x2Values,
datasets: [{
)=====";
String Second = R"=====(
borderColor: "red",
fill: false
}, {
)=====";
String Third = R"=====(
borderColor: "green",
fill: false
}, {
)=====";
String Fourth = R"=====(
borderColor: "blue",
fill: false
}]
},
options: {
legend: {display: false}
}
});
)=====";
client.print("<script>");
client.print("const x2Values = [");
readDataChartXM(client, actualFilenumber + "_moist1.txt");
client.print("];");
client.print(First2);
client.print(name);
client.print(First3);
client.print("data: [");
readDataChart(client, actualFilenumber + "_moist1.txt");
client.print("],");
client.print(Second);
//readDataChart2(client);
client.print("data: [");
readDataChart(client, actualFilenumber + "_moist2.txt");
client.print("],");
client.print(Third);
//readDataChart3(client);
client.print("data: [");
readDataChart(client, actualFilenumber + "_moist3.txt");
client.print("],");
client.print(Fourth);
client.print("</script>");
}
void loadNewChart2(WiFiClient client, String name){
String First2 = R"=====(
new Chart(")=====";
String First3 = R"=====(", {
type: "line",
data: {
labels: x3Values,
datasets: [{
)=====";
String Second = R"=====(
borderColor: "red",
fill: false
}]
}, options: {
legend: {display: false}
}
});
)=====";
client.print("<script>");
client.print("const x3Values = [");
readDataChartXM(client, actualFilenumber + "_CO2.txt");
client.print("];");
client.print(First2);
client.print(name);
client.print(First3);
client.print("data: [");
readDataChart(client, actualFilenumber + "_CO2.txt");
client.print("],");
client.print(Second);
client.print("</script>");
}
void loadNewChart3(WiFiClient client, String name){
String First2 = R"=====(
new Chart(")=====";
String First3 = R"=====(", {
type: "line",
data: {
labels: x4Values,
datasets: [{
)=====";
String Second = R"=====(
borderColor: "red",
fill: false
}]
}, options: {
legend: {display: false}
}
});
)=====";
client.print("<script>");
client.print("const x4Values = [");
readDataChartXM(client, actualFilenumber + "_humi.txt");
client.print("];");
client.print(First2);
client.print(name);
client.print(First3);
client.print("data: [");
readDataChart(client, actualFilenumber + "_humi.txt");
client.print("],");
client.print(Second);
client.print("</script>");
}
void loadNewChart4(WiFiClient client, String name){
String First2 = R"=====(
new Chart(")=====";
String First3 = R"=====(", {
type: "line",
data: {
labels: x5Values,
datasets: [{
)=====";
String Second = R"=====(
borderColor: "red",
fill: false
}]
}, options: {
legend: {display: false}
}
});
)=====";
client.print("<script>");
client.print("const x5Values = [");
readDataChartXM(client, actualFilenumber + "_dist.txt");
client.print("];");
client.print(First2);
client.print(name);
client.print(First3);
client.print("data: [");
readDataChart(client, actualFilenumber + "_dist.txt");
client.print("],");
client.print(Second);
client.print("</script>");
}
void loadNewChart5(WiFiClient client, String name){
String First2 = R"=====(
new Chart(")=====";
String First3 = R"=====(", {
type: "line",
data: {
labels: x6Values,
datasets: [{
)=====";
String Second = R"=====(
borderColor: "red",
fill: false
}]
}, options: {
legend: {display: false}
}
});
)=====";
client.print("<script>");
client.print("const x6Values = [");
readDataChartXM(client, actualFilenumber + "_air.txt");
client.print("];");
client.print(First2);
client.print(name);
client.print(First3);
client.print("data: [");
readDataChart(client, actualFilenumber + "_air.txt");
client.print("],");
client.print(Second);
client.print("</script>");
}
if (currentLine.endsWith("GET /CH")) {
addHeader(client);
addLink(client);
client.println("<h1>Temperaturen</h1>");
addCanvas(client, "myChart1");
client.println("<h1>Bodenfeuchte</h1>");
addCanvas(client, "myChart2");
client.println("<h1>CO2</h1>");
addCanvas(client, "myChart3");
client.println("<h1>Luftfeuchte</h1>");
addCanvas(client, "myChart4");
client.println("<h1>Distanz</h1>");
addCanvas(client, "myChart5");
client.println("<h1>Luftqualitaet</h1>");
addCanvas(client, "myChart6");
loadCharts(client, "myChart1");
loadNewChart(client, "myChart2");
loadNewChart2(client, "myChart3");
loadNewChart3(client, "myChart4");
loadNewChart4(client, "myChart5");
loadNewChart5(client, "myChart6");
// The HTTP response ends with another blank line:
client.println();
break;
}
Es gibt wahrscheinlich an jeder Verbesserungsmöglichkeiten...
Bei dem Nano 33 IOT werden ca. 1MB daten von SD Karte Stückweise gelesen und gesendet. Das Gleiche wollte ich jetzt mit dem ESP32 machen.
