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Read config from EEPROM

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This commit is contained in:
Daniele Viganò 2020-06-02 22:38:20 +02:00
parent 09b90e41f0
commit 1b0d069b1d
Signed by: dani
GPG Key ID: DB49AFC03C40EE02
1 changed files with 43 additions and 30 deletions
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71
arduino/tempLightSensor/tempLightSensor.ino
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@ -1,3 +1,4 @@
#include <EEPROM.h>
#include <Ethernet.h>
#include <ArduinoJson.h>
@ -12,53 +13,65 @@ JsonObject payload = doc.createNestedObject("payload");
JsonObject temp = payload.createNestedObject("temperature");
int tempPin = A0;
int tempReading;
int photocellPin = A1;
int photocellReading;
const byte mac[] = {
0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED };
const byte remoteAddr[] = {
192, 168, 10, 123 };
const int remotePort = 8000;
const int postDelay = 10*1000;
struct netConfig {
IPAddress address;
int port;
};
netConfig config;
const String serialNum = "abcde12345";
const String URL = "/telemetry/";
void printAddr(byte addr[], Stream *stream) {
for (byte thisByte = 0; thisByte < 4; thisByte++) {
// print the value of each byte of the IP address:
stream->print(addr[thisByte], DEC);
if (thisByte < 3) {
stream->print(".");
}
}
}
const int postDelay = 10 * 1000;
void setup(void) {
Serial.begin(9600);
analogReference(EXTERNAL);
byte mac[6];
char serial[9];
int eeAddress = 0;
EEPROM.get(eeAddress, mac);
eeAddress += sizeof(mac);
EEPROM.get(eeAddress, serial);
eeAddress += sizeof(serial);
Serial.println("Initialize Ethernet with DHCP:");
if (Ethernet.begin(mac) == 0) {
Serial.println("Failed to configure Ethernet using DHCP");
if (Ethernet.hardwareStatus() == EthernetNoHardware) {
Serial.println("Ethernet shield was not found. Sorry, can't run without hardware. :(");
} else if (Ethernet.linkStatus() == LinkOFF) {
Serial.println("Ethernet cable is not connected.");
}
// no point in carrying on, so do nothing forevermore:
for(;;)
;
while (true) {
delay(1);
}
}
EEPROM.get(eeAddress, config);
Serial.print("IoT started at address: ");
printAddr(Ethernet.localIP(), &Serial);
Serial.print("IoT #");
Serial.print(serial);
Serial.println(" started at address:");
Serial.println(Ethernet.localIP());
Serial.println();
Serial.println("Connecting to:");
Serial.print(config.address);
Serial.print(":");
Serial.println(config.port);
doc["device"] = 1; // FIXME
doc["device"] = serial; // FIXME
payload["id"] = serverName;
}
void loop(void) {
photocellReading = analogRead(photocellPin);
tempReading = analogRead(tempPin);
int photocellReading = analogRead(photocellPin);
int tempReading = analogRead(tempPin);
float tempVoltage = tempReading * AREF_VOLTAGE / 1024.0;
float tempC = (tempVoltage - 0.5) * 100 ;
@ -69,14 +82,14 @@ void loop(void) {
temp["raw"] = tempReading;
temp["volts"] = tempVoltage;
if (EthernetClient client = client.connect(remoteAddr, remotePort)) {
if (EthernetClient client = client.connect(config.address, config.port)) {
client.print("POST ");
client.print(URL);
client.println(" HTTP/1.1");
client.print("Host: ");
printAddr(remoteAddr, &client);
printAddr(config.address, &client);
client.print(":");
client.println(remotePort);
client.println(config.port);
client.println("Content-Type: application/json");
client.print("Content-Length: ");
client.println(measureJsonPretty(doc));