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IoTextra Combo: 2-Channel Relay & 2-Channel Precision Analog Input

Regular price: $26.50
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Sale price: $26.50

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SKU: 040601302312
Type: Combo IO
Availability: In Stock

The ultimate hybrid module for switching and sensing in one compact footprint

The IoTextra Combo is a high-performance multi-functional module designed to streamline your automation projects. By integrating two 10A power relays and two 16-bit precision differential analog inputs onto a single board, it eliminates the need for multiple modules, reducing wiring complexity and saving valuable space in your enclosure.

Built with industrial-grade reliability, the IoTextra Combo features a high-resolution ADS1115 ADC and robust galvanic isolation, making it the perfect bridge between your digital logic and the high-voltage loads.

Key Features and Benefits

Feature	Benefit
Hybrid Switching & Sensing	Control power loads and monitor high-precision sensors simultaneously with one module.
16-Bit High-Resolution ADC	Captures minute signal changes with exceptional accuracy, perfect for critical data acquisition.
Dual 10A SPDT Relays	Rugged mechanical relays capable of switching up to 250VAC/30VDC for pumps, motors, or lighting.
Differential Input Channels	Two independent differential channels effectively suppress common-mode noise for clean, trustworthy sensor data.
Dual-Mode Control	Flexible integration: use direct GPIO for speed or I²C for scalability (daisy-chain up to 16 modules).
Industrial Protection	Includes reverse power supply polarity protection and TVS diodes for Electrostatic Discharge (ESD) protection, guaranteeing a long service life in harsh environments.

Technical Specifications

Relays: 2x SPDT (1 Form C), 10A @ 250VAC / 30VDC.
ADC: 16-bit ADS1115 Delta-Sigma (Texas Instruments).
Analog Inputs: 2 Differential channels (Voltage or Current).
Voltage Ranges: ±0.5V, ±5V, ±10V (and unipolar variants).
Current Ranges: 0–20mA, 4–20mA, ±20mA, 0–40mA.
Interface: I²C (Standard & Fast modes) + 2x Qwiic® Connectors.
Power Supply: +5V DC (with reverse polarity protection).
Dimensions: Standard IoTextra form factor (47 x 56 mm).

Primary Applications

Compact PLC Systems: Build space-efficient industrial controllers with combined I/O.
Smart HVAC & Climate Control: Manage high-power fans or heaters while monitoring precision temperature and pressure sensors.
Automated Test Equipment: Create versatile test benches that require both signal measurement and load switching.
IoT & Remote Monitoring: Ideal for remote stations where 4-20mA sensor data and power cycling are required.

Ecosystem Compatibility

The IoTextra Combo is fully compatible with the loTsmart series microcontrollers and loTbase expansion boards. It offers seamless "plug-and-play" connectivity via Qwiic® cables or the 12-pin HOST connector, supporting platforms like Raspberry Pi, Arduino, ESP32, and STM32.

This module is a member of the loTextra series, which serves as a fundamental building block of our ecosystem and embodies the Make Things Happy Philosophy. It is engineered to bridge the gap between rapid prototyping and industrial-grade reliability.