Sous-Vide Temperature Control Kit with Arduino Mega & Relay Automation — an advanced-level kit for adults.

Sous-Vide Precision Cooker & Multi-Channel Automation System with Arduino Mega

Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 1-5 days.

Take control of temperature down to half a degree while cooking sous-vide steaks, then reprogram the same controller to run an automated aquaponics rig-switching pumps, grow lights, and pH dosing on a clock-accurate schedule. This kit places an Arduino Mega at the heart of a 4-relay command centre that reads two waterproof DS18B20 probes, an industrial-grade pH module, light intensity, and a real-time clock, displaying everything on an OLED panel. You'll build a system that can hold water at 57°C for 90 minutes as easily as it can feed nutrients when pH drifts out of range.

What You'll Build

A PID-regulated immersion circulator capable of keeping a water bath within ±0.5°C, alongside a fully configurable 4-channel relay board. The relays can fire a fish tank heater, a grow-bed pump, a pH-dosing peristaltic pump, and LED grow lights-all triggered by temperature thresholds, pH setpoints, or RTC events. The OLED shows live readings, active outputs, and a simple menu for adjusting targets without reconnecting to a PC.

What You'll Learn

• Interfacing multiple DS18B20 sensors on OneWire and calibrating the analog pH module for stable millivolt-to-pH conversion
• Implementing a PID control loop to drive a heater via relay, avoiding overshoot and hunting
• Programming DS3231 RTC schedules and conditional relay logic for pumps, lighting, and dosing in a 24-hour cycle
• Building a multi-page OLED interface that displays temperature, pH, light levels, and system status, with push-button menu control

Kit Contents

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.