Backup-Mirrors/esp32-energy-meter
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Revise hardware components and power supply details

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Updated hardware requirements and wiring details in README.
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Amir
2025-12-19 23:54:47 +01:00
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README.md
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@@ -39,10 +39,11 @@ The original project provided the foundation for this enhanced version, which ad
## 📋 Hardware Requirements
### Main Components
- **ESP32 Development Board** (any ESP32 variant)
- **JSY Energy Meter** with Modbus RTU over RS485
- **ESP32 Wemos D1 Mini** (recommended - compact ESP32 development board)
- **JSY-MK-194G Energy Meter** with Modbus RTU over RS485
- **SSD1306 128x64 OLED Display** (I2C)
- **RS485 to TTL Converter Module** (for Modbus communication)
- **Meanwell APV-8-5 5V 8W Power Supply** (for system power)
### Optional Components
- **3D Printed Enclosure** (see hardware guide)
@@ -52,7 +53,7 @@ The original project provided the foundation for this enhanced version, which ad
### Wiring Requirements
- **UART Pins**: TX (GPIO17), RX (GPIO16)
- **I2C Pins**: SDA (GPIO21), SCL (GPIO22)
- **Power Supply**: 3.3V and 5V rails
- **Power Supply**: 5V external supply to ESP32 +5V pin, ESP32 3.3V powers all peripherals
## 🔧 Installation & Setup