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SDM120CT_Read.ino
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SDM120CT_Read.ino
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#include <Arduino.h>
#include <RS485.h>
void setup() {
Serial.begin(115200);
Serial.println("Hello !");
// Setup RS485 with 2400 band and 8 bit data, 1 stop bit, No parity bit
// More : https://www.arduino.cc/reference/en/language/functions/communication/serial/begin/
RS485.begin(2400, SERIAL_8N1);
}
void loop() {
delay(1000);
// Read Input Register with Deivce ID: 1, Address: 0x0000 and data type is Float
float voltage = RS485.inputRegisterReadFloat(1, 0x0000);
delay(50);
float current = RS485.inputRegisterReadFloat(1, 0x0006);
delay(50);
float active_power = RS485.inputRegisterReadFloat(1, 0x000C);
delay(50);
float power_factor = RS485.inputRegisterReadFloat(1, 0x001E);
delay(50);
float frequency = RS485.inputRegisterReadFloat(1, 0x0046);
delay(50);
float total_active_power = RS485.inputRegisterReadFloat(1, 0x0156);
Serial.printf("Volt: %.02fV\n", voltage);
Serial.printf("Current: %.02fA\n", current);
Serial.printf("Active Power: %.02fkWh\n", active_power);
Serial.printf("Power Factor: %.02f\n", power_factor);
Serial.printf("Frequency: %.02fHz\n", frequency);
Serial.printf("Total Active Power: %.02fkWh\n", total_active_power);
Serial.printf("---------------------------\n");
}