Overview
This project focuses on developing a Smart Energy Meter using the ESP32 SoC as the core processing element. The aim is to accurately measure and display key electrical parameters, enhancing energy monitoring efficiency. For AC voltage measurement, the ZMPT101B circuit is used, offering precise voltage sensing capabilities. Current measurement is conducted using the SCT-013 30A current sensor, known for its reliability in capturing current flow. The signal from the current sensor is converted to DC using the AD736 RMS-to-DC converter IC from analog devices. This DC voltage is then measured and converted to corresponding current readings.
The ESP32 MCU plays a crucial role by processing the outputs from both the AD736 and the ZMPT101B circuit. It accurately translates these readings into digital data, representing AC voltage, AC RMS current, and power consumption. All the measured values are then displayed to an OLED screen for easy readout. This Smart Energy Meter is designed to provide real-time, accurate energy consumption data, making it a valuable tool for both domestic and industrial applications. The project aims to contribute to efficient energy usage by offering precise monitoring and data analysis capabilities.
PCB Gerber File
Components Required
| Value | Manufacturer | Digikey Part Number | Datasheet Link | Quantity |
|---|---|---|---|---|
| 1UF | Samsung Electro-Mechanics | CL31B105KBHNNNE |  Datasheet |
2 |
| 1NF | KEMET | C1206C102KGRAC7800 | Datasheet |
2 |
| 10uF | Samsung Electro-Mechanics | CL31A106MAHNNNE | Datasheet |
6 |
| 10nf | KEMET | C1206C103KCRAC7800 | Datasheet |
1 |
| 0.1u | KEMET | C1206C104K5RAC7210 | Datasheet |
1 |
| 33uF | KYOCERA AVX | TPSB336K010R0500 | Datasheet |
1 |
| 100UF | KYOCERA AVX | TLJA107M010R1400 | Datasheet |
1 |
| 3.5mm Audio Jack | Kycon | STX-35331-4N-TR | Datasheet |
1 |
| 10A172℃250V | Bel Fuse | 5STP 10-RD | Datasheet |
1 |
| CONN-TH_2P-P5.00 | Phoenix Contact | 1935161 | Datasheet |
1 |
| S8050 | Comchip Technology | SS8050-G | Datasheet |
2 |
| 10K | YAGEO | RC1206FR-0710KL | Datasheet |
12 |
| 820k | YAGEO | RC1206FR-07820KL | Datasheet |
1 |
| 5.1K | Stackpole Electronics Inc | RMCF1206JT5K10 | Datasheet |
2 |
| 100E | YAGEO | RC1206FR-07100RL | Datasheet |
1 |
| 100k | YAGEO | RC1206FR-07100KL | Datasheet |
3 |
| 300E | YAGEO | RC1206JR-07330RL | Datasheet |
2 |
| 20K | YAGEO | RC1206FR-0720KL | Datasheet |
1 |
| 4.7 | YAGEO | RC1206FR-074K7L | Datasheet |
1 |
| 0R | YAGEO | RC1206JR-070RL | Datasheet |
1 |
| R_3296-100K | Bourns Inc. | 3296Y-1-104LF | Datasheet |
1 |
| LED0805 | ams-OSRAM USA | LS R976-NR-1 | Datasheet |
2 |
| Tactile switch | CIT Relay and Switch | CS1213BGF260 | Datasheet |
2 |
| Slide switch | C&K | SS-12D07-VG 4 NS GA PA | Datasheet |
1 |
| LM358BAIDR | Texas Instruments | LM358DR | Datasheet |
1 |
| ESP32-WROOM-32E(16MB) | Espressif Systems | 1965-ESP32-WROOM-32E-N16CT-ND | Datasheet |
1 |
| AD736JRZ | Analog Devices | AD736JRZ-R7 | Datasheet |
1 |
| AMS1117-5.0 | Diodes Incorporated | AZ1117IH-5.0TRG1 | Datasheet |
1 |
| AMS1117-3.3V | Diodes Incorporated | AZ1117IH-3.3TRG1 | Datasheet |
1 |
| TYPE-C | GCT | 2073-USB4105-GF-ACT-ND | Datasheet |
1 |
| ICL7660CSA | Renesas Electronics Corporation | ICL7660CBAZ-T | Datasheet |
1 |