307 lines
7.6 KiB
C++
307 lines
7.6 KiB
C++
#include <Wire.h>
|
|
#include <RTClib.h>
|
|
|
|
#include <NeoSWSerial.h>
|
|
#include <ModbusMaster.h>
|
|
#include "util.h"
|
|
#include "register_map_pm8000.h"
|
|
|
|
// #include <SD.h>
|
|
|
|
#include <SPI.h>
|
|
#include <SdFat.h>
|
|
#define SD_CS_PIN 10 // Chip Select for SD Card
|
|
// RS485 pins
|
|
#define DE_RE_PIN 4
|
|
#define RX_PIN 8 // SoftwareSerial RX pin
|
|
#define TX_PIN 7 // SoftwareSerial TX pin
|
|
#define SLAVE_ID 101
|
|
#define SERIAL_BAUDRATE 9600
|
|
#define LED_A_PID 3
|
|
#define LED_B_PID 5
|
|
|
|
// Try to select the best SD card configuration.
|
|
#define SPI_CLOCK SD_SCK_MHZ(50)
|
|
#if HAS_SDIO_CLASS
|
|
#define SD_CONFIG SdioConfig(FIFO_SDIO)
|
|
#elif ENABLE_DEDICATED_SPI
|
|
#define SD_CONFIG SdSpiConfig(SD_CS_PIN, DEDICATED_SPI, SPI_CLOCK)
|
|
#else // HAS_SDIO_CLASS
|
|
#define SD_CONFIG SdSpiConfig(SD_CS_PIN, SHARED_SPI, SPI_CLOCK)
|
|
#endif // HAS_SDIO_CLASS
|
|
|
|
RTC_DS3231 rtc; // Create an RTC object
|
|
SdFat32 sd;
|
|
// SdExFat sd;
|
|
File dataFile;
|
|
NeoSWSerial modbusSerial(RX_PIN, TX_PIN); // Create a software serial instance
|
|
ModbusMaster node;
|
|
|
|
unsigned long lastRefreshTime = 0;
|
|
bool headerWritten = false;
|
|
bool booted = false;
|
|
|
|
void flicker(uint8_t pin, uint8_t times, uint16_t speed)
|
|
{
|
|
for (int i = 0; i < times; i++)
|
|
{
|
|
delay(speed);
|
|
digitalWrite(pin, HIGH);
|
|
delay(speed);
|
|
digitalWrite(pin, LOW);
|
|
}
|
|
}
|
|
|
|
void setup()
|
|
{
|
|
booted = false;
|
|
pinMode(LED_A_PID, OUTPUT);
|
|
pinMode(LED_B_PID, OUTPUT);
|
|
digitalWrite(LED_A_PID, LOW);
|
|
digitalWrite(LED_B_PID, HIGH);
|
|
|
|
Serial.begin(SERIAL_BAUDRATE); // For debugging
|
|
Serial.println(F("Startup \n"));
|
|
|
|
// Initialize RTC
|
|
if (!rtc.begin())
|
|
{
|
|
Serial.println(F("Couldn't find RTC\n"));
|
|
flicker(LED_B_PID, 4, 1000); // 4 times on LED b is RTC Error
|
|
digitalWrite(LED_B_PID, HIGH);
|
|
digitalWrite(LED_A_PID, HIGH);
|
|
return;
|
|
}
|
|
|
|
if (rtc.lostPower())
|
|
{
|
|
Serial.println(F("RTC lost power, let's set the time!\n"));
|
|
// Comment out the following line once the time is set to avoid resetting on every start
|
|
rtc.adjust(DateTime(F(__DATE__), F(__TIME__)));
|
|
flicker(LED_B_PID, 4, 500); // 6 times fast on LED b is RTC reset
|
|
}
|
|
|
|
Serial.print(F("Time: "));
|
|
Serial.print(rtc.now().timestamp());
|
|
Serial.println(F("\n"));
|
|
|
|
// Initialize SD card
|
|
Serial.println(F("SD card initializing..."));
|
|
pinMode(SD_CS_PIN, OUTPUT);
|
|
|
|
// if (!SD.begin(SPI_HALF_SPEED, SD_CS_PIN ))
|
|
// {
|
|
// Serial.println(F("SD card initialization failed!\n"));
|
|
// return;
|
|
// }
|
|
// Initialize the SD.
|
|
if (!sd.begin(SD_CONFIG))
|
|
{
|
|
flicker(LED_B_PID, 2, 1000);
|
|
digitalWrite(LED_B_PID, HIGH);
|
|
sd.initErrorHalt(&Serial);
|
|
|
|
// 2 Times slow and stay on, SD Card initilize error
|
|
return;
|
|
}
|
|
Serial.println(F("SD card initialized.\n"));
|
|
|
|
Serial.println(F("Initialize RS485 module / Modbus \n"));
|
|
|
|
pinMode(DE_RE_PIN, OUTPUT);
|
|
digitalWrite(DE_RE_PIN, LOW); // Set to LOW for receiving mode initially
|
|
modbusSerial.begin(SERIAL_BAUDRATE);
|
|
|
|
node.begin(SLAVE_ID, modbusSerial);
|
|
node.preTransmission(preTransmission);
|
|
node.postTransmission(postTransmission);
|
|
flicker(LED_B_PID, 10, 100);
|
|
digitalWrite(LED_B_PID, LOW);
|
|
booted = true;
|
|
}
|
|
|
|
void preTransmission()
|
|
{
|
|
// Serial.println(F("Transmitting Start"));
|
|
digitalWrite(DE_RE_PIN, HIGH); // Enable RS485 transmit
|
|
digitalWrite(LED_A_PID, HIGH);
|
|
}
|
|
|
|
void postTransmission()
|
|
{
|
|
|
|
digitalWrite(DE_RE_PIN, LOW); // Disable RS485 transmit
|
|
digitalWrite(LED_A_PID, LOW);
|
|
// Serial.println(F("Transmitting End"));
|
|
}
|
|
|
|
void primeFileDate()
|
|
{
|
|
if (!dataFile)
|
|
{
|
|
Serial.println(F("Error opening file"));
|
|
return;
|
|
}
|
|
DateTime now = rtc.now();
|
|
// Log the current date and time
|
|
dataFile.print("\n");
|
|
dataFile.print(now.year(), DEC);
|
|
dataFile.print('-');
|
|
dataFile.print(now.month(), DEC);
|
|
dataFile.print('-');
|
|
dataFile.print(now.day(), DEC);
|
|
dataFile.print(" ");
|
|
dataFile.print(now.hour(), DEC);
|
|
dataFile.print(':');
|
|
dataFile.print(now.minute(), DEC);
|
|
dataFile.print(':');
|
|
dataFile.print(now.second(), DEC);
|
|
dataFile.print(F(","));
|
|
}
|
|
|
|
String getFilename()
|
|
{
|
|
DateTime now = rtc.now();
|
|
String mb = F("pm8k_");
|
|
mb += now.year();
|
|
mb += now.month();
|
|
mb += now.day();
|
|
mb += F(".csv");
|
|
|
|
return mb;
|
|
}
|
|
|
|
// const char[20] filename = "20240523.csv";
|
|
|
|
void loop()
|
|
{
|
|
if (!booted)
|
|
{
|
|
Serial.print(F("\nBoot failed, cycle "));
|
|
|
|
delay(10000);
|
|
digitalWrite(LED_A_PID, LOW);
|
|
return;
|
|
}
|
|
delay(100);
|
|
String writebuffer;
|
|
|
|
if (millis() - lastRefreshTime >= 1000)
|
|
{
|
|
lastRefreshTime += 1000;
|
|
|
|
Serial.print(F("\nTime: "));
|
|
Serial.print(rtc.now().timestamp());
|
|
// Serial.print("\nHeep:");
|
|
// Serial.print(ESP.getFreeHeap());
|
|
const uint16_t totalReg = sizeof(registers) / sizeof(registers[0]);
|
|
// Open File
|
|
String filename = getFilename();
|
|
Serial.print(F("Open Card "));
|
|
Serial.print(filename.c_str());
|
|
Serial.print("\n");
|
|
if (!dataFile.open(filename.c_str(), FILE_WRITE))
|
|
{
|
|
flicker(LED_B_PID, 6, 500); // Six quick flickers. SD Card error
|
|
Serial.println(F("Failed to Open Card "));
|
|
}
|
|
if (!headerWritten)
|
|
{
|
|
dataFile.print("\nDate Time,");
|
|
for (int i = 0; i < totalReg; i++)
|
|
{
|
|
const uint16_t regaddr = pgm_read_word(®isters[i].regaddr);
|
|
dataFile.print("@");
|
|
dataFile.print(regaddr);
|
|
dataFile.print(",");
|
|
}
|
|
headerWritten = true;
|
|
flicker(LED_A_PID, 50, 10); // 10 flickers, written header
|
|
}
|
|
primeFileDate();
|
|
Serial.print("\n");
|
|
|
|
Serial.println(totalReg);
|
|
// Modbus Data Loop
|
|
for (int i = 0; i < totalReg; i++)
|
|
{
|
|
const uint16_t regaddr = pgm_read_word(®isters[i].regaddr);
|
|
const uint8_t regtype = pgm_read_word(®isters[i].regtype);
|
|
|
|
Serial.print(F("Reg Read: "));
|
|
Serial.println(regtype);
|
|
Serial.println(regaddr);
|
|
|
|
if (regaddr > 0)
|
|
{
|
|
delay(25); // Gives the pending communication a little delay
|
|
uint8_t result = node.readHoldingRegisters(regaddr - 1, 2);
|
|
delay(25); // Delay the read for a little bit so that the buffer can be read
|
|
|
|
if (result == node.ku8MBSuccess)
|
|
{
|
|
if (regtype == 2)
|
|
{
|
|
dataFile.print(getRegisterFloat(node.getResponseBuffer(0), node.getResponseBuffer(1)));
|
|
}
|
|
else if (regtype == 1)
|
|
{
|
|
dataFile.print(node.getResponseBuffer(0));
|
|
}
|
|
// else if (regtype == 3)
|
|
// {
|
|
// dataFile.print(getRegisterInt64(node.getResponseBuffer(0), node.getResponseBuffer(1), node.getResponseBuffer(2), node.getResponseBuffer(3)));
|
|
// }
|
|
else if (regtype == 0)
|
|
{
|
|
dataFile.print(getRegisterInt32(node.getResponseBuffer(0), node.getResponseBuffer(1)));
|
|
}
|
|
else if (regtype == 5)
|
|
{
|
|
for (uint8_t j = 0; j < 20; j++)
|
|
{
|
|
uint8_t v = node.getResponseBuffer(j);
|
|
char a = v;
|
|
if (v == 0) {
|
|
break;
|
|
}
|
|
dataFile.print(a);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
dataFile.print(F("null"));
|
|
}
|
|
}
|
|
else
|
|
{
|
|
Serial.print(F("Reg Error: "));
|
|
Serial.print(result, HEX);
|
|
Serial.print("\n");
|
|
dataFile.print(F("E"));
|
|
dataFile.print(result, HEX);
|
|
flicker(LED_B_PID, 2, 250);
|
|
}
|
|
dataFile.print(",");
|
|
}
|
|
}
|
|
|
|
Serial.print(F("\nRead buffer: "));
|
|
delay(10);
|
|
|
|
if (dataFile)
|
|
{
|
|
dataFile.close(); // Close the file
|
|
Serial.print(F("Data written to SD card: "));
|
|
Serial.print(filename.c_str());
|
|
Serial.print(F("\n"));
|
|
}
|
|
|
|
Serial.print(F("\n\n"));
|
|
|
|
flicker(LED_A_PID, 4, 100); // Cycle written 4 quick flickers
|
|
}
|
|
|
|
// // Check if the read was successful
|
|
}
|