Arduino PID Reflow Oven Controller Kit with Arduino Uno + Relay
Arduino PID Reflow Oven Controller Kit with Uno & SSR Relay — Build a Professional-Grade SMD Soldering Oven at Home
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Transform a cheap toaster oven into a precision reflow soldering station. This Arduino-based PID controller monitors temperature via a MAX6675 thermocouple and switches an SSR relay to follow a calibrated reflow profile — preheat, soak, reflow, and cooling — ensuring your SMD boards are soldered like factory PCBs.
What You'll Build
A fully programmable reflow oven controller with LCD interface and three-button menu. You'll dial in preheat, soak, and reflow temperature setpoints, watch the real-time curve on the LCD, and let the PID algorithm hold each stage within ±2°C. The controller drives a 25A SSR relay to precisely switch the oven’s heating element.
What You'll Learn
- Tuning a PID algorithm for thermal systems
- Interfacing MAX6675 thermocouple amplifier with Arduino for accurate temperature sensing
- Controlling high-power AC loads safely using an SSR relay and zero-crossing detection
- Building a menu-driven UI with a 16x2 LCD and tactile buttons
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Uno R3 | x1 |
| MAX6675 Thermocouple | x1 |
| Type-K Thermocouple | x1 |
| SSR Relay 25A | x1 |
| 16x2 LCD | x1 |
| I2C Backpack | x1 |
| Tactile Button | x3 |
| 10kΩ Resistors | x5 |
| 100nF Caps | x5 |
| PCB Prototype Board | x2 |
| 9V Battery Snap | x1 |
| Soldering Iron | x1 |
| Solder Wire | x1 |
Why Buy This Kit Instead of Sourcing Parts Separately
| Factor | Sourcing Separately | Compoden Kit |
|---|---|---|
| Compatibility checks | You verify every part | Pre-tested as a system |
| Build support | Forums and scattered tutorials | AI companion trained on this exact project |
| Time to first working build | Days of debugging | Hours, with step-by-step guidance |
| Shipping coordination | Multiple sellers, multiple delays | One shipment from Bengaluru in 3-5 days |
Who This Kit Is For
This advanced kit is perfect for B.Tech ECE/EEE students building a final‑year automation project, participants in Smart India Hackathon needing a reliable reflow soldering setup, and makers from VIT, NIT, IIT, or BITS who assemble SMD prototypes regularly. It assumes you already have basic Arduino programming and soldering skills.
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 our AI build companion; it knows every pin, code snippet, and calibration step of this exact kit. If you need a human, our WhatsApp support replies within 6 hours.
Can I use any toaster oven with this kit?
Yes, any 1000-1500W toaster oven works. The SSR relay handles up to 25A, and the code lets you set the PID constants to match your oven’s thermal mass. We include a detailed calibration guide.
Do I need to write the PID code from scratch?
You get a fully commented Arduino sketch with the PID library, preset reflow profile constants, and LCD menu logic. You can tweak tuning parameters easily during calibration.
What if the thermocouple reads wrong?
The MAX6675 performs cold-junction compensation; we include a test sketch to verify it against boiling water. If the thermocouple is faulty, claim a free replacement within 7 days.
MAX6675 thermocouple + SSR relay with full PID tuning. Holds reflow solder temperature profile.
What's in this kit
- Arduino Uno R3
- MAX6675 Thermocouple
- Type-K Thermocouple
- SSR Relay 25A
- 16x2 LCD
- I2C Backpack
- Tactile Button x3
- 10kΩ Resistors x5
- 100nF Caps x5
- PCB Prototype Board x2
- 9V Battery Snap
- Soldering Iron
- Solder Wire
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.
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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