The CANADUINO MEGA2560 PLC-300 V2 represents the next evolution of our successful DIY programmable logic controller kit, offering enhanced connectivity and communication capabilities while maintaining the robust I/O features of its predecessor.

Overview

This advanced DIY soldering kit transforms into a powerful, Arduino-compatible programmable logic controller suitable for light industrial applications. With industrial-standard 0-10V analog capabilities and a wide operating voltage range, it rivals commercial PLCs costing $500-1000 while offering greater flexibility at a fraction of the price.

Key Features

• 16 digital opto-isolated inputs (3.3V to 24V DC)
• 14 digital relay outputs (OMRON G5NB-1A-E, 5A @ 250VAC/30VDC)
• 8 analog inputs (0-10V) with 10-bit resolution
• 8 additional GPIO (analog/digital, 5V) on auxiliary header
• 8 analog outputs (0-10V) with 8-bit resolution
• Dual RS232 ports via D-sub 9 connector
• Dual I2C ports (3.3V and 5V with Grove connector)
• SPI interface (3.3V, 4-wire)
• Dedicated socket for Seeed Studio XIAO series modules
• Operating voltage: 12-24V DC
• Optional DIN rail mounting tray
• Optional XIAO ESP32-C6 module
• Optional XIAO ESP32-C3 module

Enhanced Connectivity

CANADUINO MEGA2560 PLC-300 V2 introduces expanded communication capabilities:

• Two RS232 ports through a single D-sub 9 connector (COM2 on pins 2/3, COM3 on pins 7/8)
• Dual I2C ports with 4-pin Grove connectors supporting both 3.3V and 5V devices
• 3.3V SPI port for connecting an Ethernet module, a memory card, or other peripherals
• Seeed Studio XIAO socket supporting various modules (ESP32C3, ESP32C6, RP2040, nRF52840) for additional features like USB host, Bluetooth, or Wi-Fi

System Requirements

• Requires an Arduino MEGA2560 or compatible module
• Optional: Seeed Studio XIAO series module for enhanced connectivity

Programming Options

• Direct C++ programming using any toolchain supporting Atmel's 8-bit AVR MCUs
• Arduino IDE support
• Compatible with OpenPLC and Mitov's Visuino
• Supports ladder logic programming

Technical Details

• Regulated 5V and 10V outputs available for powering external devices
• Fast-acting OMRON relays with ~10ms operation time
• MAX232 compatible interface chip for reliable RS232 communication

Kit Contents

• PCB with clearly marked component positions
• All required electronic components
• Complete mechanical assembly parts
• Detailed assembly instructions (downloadable PDF)
• DIP sockets for all ICs included

Note: For better reliability, especially in rough environment, we recommend to solder ICs.

Perfect for:

• Industrial automation projects
• Educational environments
• Prototyping and development
• Custom control systems
• Home automation
• Machine control interfaces

Assembly Requirements

This CANADUINO MEGA2560 PLC-300 V2 kit is designed for experienced technicians, students, and makers familiar with electronic assembly.

Required tools:

• Soldering iron
• Solder wire
• Wire cutter
• Basic electronic tools (multimeter, "3rd hand")

Note on Components

The kit may occasionally include substitute components that maintain full functionality. For optimal assembly, install exact-matching components first, followed by any substitute parts.