ESP32 Project: IOT Energy Monitoring

IOT Energy Monitoring adalah projek yang memantau penggunaan tenaga elektrik dalam unit kWh. Selain bacaan tenaga elektrik, terdapat beberapa bacaan lain iaitu voltan, arus, kuasa (power), power factor (pf) dan frekuensi. Bacaan di simpan di dalam MySQL.

Projek ini menggunakan Eastron SDM230 Smart Meter. Meter ini menggunakan interface RS485. Data protocol nya menggunakan Modbus dan nilai bacaan nya di dalam format 32bit IEEE 754. Bacaan IOT Energy Monitoring boleh dilihat di Selain daripada menggunakan ESP32, projek ini juga boleh menggunakan Raspberry Pi IOT Energy Monitoring.

Skematiknya adalah seperti berikut.

PCB komponen layout nya adalah seperti berikut.

Senarai komponen projek ESP32 IOT Energy Monitoring seperti berikut.
No Component Label Unit
1 022 PCB TTGO Four Input (81mm X 45mm) PCB 1
2 AC Socket AC Socket 1
3 Buzzer-PCB Mount Buzzer 1
4 Capacitor SMD1206 10uF C1-C2 2
5 DC Jack Female DC Jack Female 1
6 Diode SMD1206 1N4001 D1 1
7 Energy Meter SDM230 RS485 1
8 IC MAX485 SOIC MAX485 1
9 Mosfet BSS123 SOT23 Q1 1
10 PCB Stand (screw nut) PCB Stand 4
11 Resistor SMD0805 0.125W 120 R3 1
12 Resistor SMD0805 0.125W 1K R1 1
13 Resistor SMD0805 0.125W 20K R2, R4 2
14 Straight Female Header 1X40 TTGOD 1
15 Terminal Block 2 Way PWR 1
16 Terminal Block 2 Way RS485 1
17 TTGO T-Display ESP32 TTGOD 1
18 Voltage Regulator 5V TO252 (DPAK) 7805 1

Harga projek ESP32 IOT Energy Monitoring adalah RM890 tidak termasuk bantuan teknikal. Di bawah adalah cara projek ini berfungsi.

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14 responses to “ESP32 Project: IOT Energy Monitoring”

  1. sir;
    i am 3 rd year student and i am kind of struggling with a new idea or aspects in the field of energy consuming and billing through energy meter and internet …that’s iot…
    few ideas i have regarding that like—THEFT PROTECTION AND DISCONNECTION..
    your project was amazingly well..i’m deeply inspired..i am wondering to get help to make that iot server please do send me your help to my will be my pleasure…

    so please help me with something which could be implemented into this.. and also send me schematics of this project.

  2. This is much informative, Thanks for sharing

    We have also some of the projects about Arduino and Raspberry pi Have a look to my blog at

  3. Salam tumpang tnya ttgo display funtion mcm lcd ke atau komponen tu khas utk certain task n coding seperate.

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