ESP32 PZEM Energy Dashboard Server Kit with ESP32 + LED
Build a 3-Node ESP32 Energy Dashboard Server with Grafana and PZEM-004T – No Cloud Dependency
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Deploy a private energy monitoring network across three circuits and view real-time consumption on a local Grafana dashboard — no cloud subscription, no third-party access. This advanced kit gives you four ESP32 microcontrollers, three PZEM-004T AC power monitors, and all supporting components to create a self-contained energy dashboard server that stays completely under your control.
What You'll Build
You will assemble three metering nodes, each reading voltage, current, power, and cumulative energy from a separate electrical line (up to 100A). These nodes stream readings wirelessly to a central ESP32 server running a Grafana instance that visualizes trends, spikes, and cost estimates. The entire dashboard is accessible from any browser on your local WiFi — no cloud reliance.
What You'll Learn
- Design a wireless sensor mesh using ESP-NOW or MQTT for low-latency data transport
- Configure PZEM-004T UART communication and parse Modbus-RTU data registers
- Deploy Grafana on an ESP32 alongside InfluxDB or SQLite to serve interactive dashboards
- Build a production-style energy monitor that eliminates cloud costs and data privacy concerns
Kit Contents
| Component | Quantity |
|---|---|
| ESP32 Dev Board | 4 |
| PZEM-004T | 3 |
| LM2596 Buck Converter | 3 |
| 0.96in OLED | 1 |
| 100nF Capacitor | 15 |
| 4.7kΩ Resistor | 10 |
| PCB Prototype Board | 4 |
| DIN Rail Enclosure | 1 |
| 12V 5A Power Supply | 1 |
| Soldering Iron | 1 |
| Solder Wire | 1 |
Why Buy This Kit Instead of Sourcing Parts Separately
| Factor | Sourcing Separately | Compoden Kit |
|---|---|---|
| Compatibility checks | You verify every part, debug UART noise, power rail stability, and interference | Pre-tested as a system: buck converters matched to PZEM-004T loads, decoupling capacitors included to suppress glitches |
| Build support | Forums and scattered tutorials | AI companion trained on this exact project |
| Time to first working build | Days of debugging boot loops, false readings, and solder bridges | Hours, with step-by-step guidance tailored to each hardware revision |
| Shipping coordination | Multiple sellers, multiple delays | One shipment from Bengaluru in 3-5 days |
Who This Kit Is For
Ideal for B.Tech ECE/EEE students building capstone projects, Smart India Hackathon participants tackling energy themes, or IIT/NIT/VIT/BITS makers who want a private energy dashboard. If you've already flashed an ESP32 and understand basic electronics, this kit takes you straight to advanced IoT monitoring without any cloud handholding.
Built and Backed by Compoden
Every Compoden kit ships with an AI build companion trained on this exact project — accessible via a QR code on the box, with WhatsApp and email backup. We've spent 10 years building projects for makers, schools, and institutions across India. If a part fails because of a manufacturing defect, replace it free within 7 days.
What if I get stuck during the build?
Scan the QR code to chat with the AI companion that knows every wire, register, and Grafana config in this project. For deeper help, our engineers are reachable on WhatsApp.
Does the dashboard require an internet connection?
No. The central ESP32 acts as a local server. You only need your WiFi router; data never leaves your network.
Can I add more metering nodes later?
Absolutely. The code structure supports expansion; you'll learn to register additional PZEM-004T sensors with minor modifications.
Is soldering experience necessary?
Yes. You'll solder headers, capacitors, and wiring on prototype boards. The included soldering iron and lead-free wire get you started, but basic skill is assumed.
PZEM-004T per circuit on three ESP32 nodes. Central ESP32 aggregates and serves Grafana dashboard locally.
What's in this kit
Choose your assembly option:
- Soldering Kit — 25W soldering iron, 60/40 solder wire, flux, and small perfboard for permanent assembly.
- Breadboard Combo — 800-point full-size breadboard with 65-piece jumper wire pack for solderless prototyping.
Shipping Information
- Prepaid Orders: ₹75 for orders up to ₹999, FREE shipping above ₹999
- COD Orders: ₹125 shipping + ₹50 COD fee = ₹175 total
- Delivery Timeline: Dispatch in 1-2 days, delivery in 2-7 days depending on location
Returns & Warranty
- 7-Day Return: Manufacturing defects only (approval required)
- Warranty: 7 days from delivery
- Non-Returnable: Batteries, consumables, cut wires, clearance items