For embedded projects using Arduino, ESP32, or other microcontroller boards, dedicated libraries eliminate the need to write low‑level Modbus code.
This is usually provided on a CD with the device. If you don't have a CD drive, search "Peacefair official website" or check reputable seller listings for the "PZEM-017 Software/Driver." B. Koshka Web-Based PZEM Interface (Recommended)
Downloading software for the PZEM-017 DC power meter Go to product viewer dialog for this item.
: RS485 polarity is frequently mislabeled on cheap USB converters. Try reversing the A and B wires.
| Symptom | Likely Cause | Solution | |---------|--------------|----------| | No response from software | Wrong COM port or driver | Reinstall CH340 driver | | Reading zeros | Wrong communication address | Try addresses 1–247 (default 1) | | Garbage characters | Baud rate mismatch | Set to 9600 or 4800 | | Cannot write settings | SW version locked | Use older PC tool (V1.2) |
Visit the official Peacefair support page at peacefair.com → Support → Downloads → Search “PZEM-017”. If down, use:
Once connected, the software provides real-time diagnostic utilities:
Depending on your technical comfort level, there are three primary ways to interface with the PZEM-017: 1. Official Peacefair Factory Software
This software is typically a lightweight .exe file (under 2 MB) and requires a USB-to-TTL (e.g., CP2102, CH340) or USB-to-RS485 converter to connect the meter to your PC.
Follow these steps to connect your hardware to the downloaded software. Step 1: Install the USB-to-RS485 Driver Connect your USB-to-RS485 adapter to the PC. Open Windows . Look under Ports (COM & LPT) .
To read data on a PC, you need the official manufacturer software. This article guides you through downloading, installing, and configuring the PZEM-017 software. 🛠️ Essential Hardware Requirements
Once you have downloaded and installed the software, follow this configuration guide.
No "software download" needed; use the PZEM-017 component integration.
: This is arguably the simplest and most powerful method. After connecting an ESP8266/ESP32 to the PZEM-017 via RS485 to TTL, you can configure it entirely in YAML.