ELECTRONICS MODULES

1 Channel 5V Relay Module without Optocoupler

SKU: SV-ELM-RL006

In stock

40.00 (Included GST)

12V 1Ch Relay Module with Optocoupler

SKU: SV-ELM-RL003

In stock

40.00 (Included GST)

12V 2Ch Relay Module with Optocoupler

SKU: SV-ELM-RL004

In stock

75.00 (Included GST)

12V 8 Channel Relay Module

SKU: SV-ELM-RL005

In stock

390.00 (Included GST)

13.56MHz RFID keychain Tag

SKU: SV-ELM-RF054

In stock

18.00 (Included GST)

2 Channel 5V Relay Module with Optocoupler

SKU: SV-ELM-RL007

In stock

75.00 (Included GST)

2 Channel Logic Level Converter (I2C, UART, 5V-3.3V)

SKU: SV-ELM-IN023

In stock

25.00 (Included GST)

4 Channel 5V 10A Relay Module with optocoupler

SKU: SV-ELM-RL008

In stock

150.00 (Included GST)

4×4 Matrix 12 keys Membrane Switch Keypad

SKU: SV-ELM-KE001

In stock

50.00 (Included GST)

5V 1CH Relay Module

SKU: SV-ELM-RL002

In stock

40.00 (Included GST)

5V 7A SPDT Relay PCB Mount

SKU: SV-ELM-RL001

In stock

17.00 (Included GST)

5V Power Bank Charging Circuit Module

SKU: SV-ELM-PW008

In stock

22.00 (Included GST)

Explore Versatile Electronics Modules for Your DIY and Embedded Projects

Stemvolt presents a wide range of Electronics Modules to simplify your embedded systems, automation, and electronics development tasks. From Audio Modules, Relay Modules, and Power Supply Modules to Interface Modules, Keypad Units, and RTC/ RFID Modules, we provide plug-and-play solutions that accelerate your project timeline.

These compact, reliable modules are ideal for Arduino, Raspberry Pi, ESP32, robotics, home automation, IoT, and STEM learning setups. Whether you’re designing a smart security system, a robotic hand, or a voice-controlled device, our modules ensure seamless connectivity and functional accuracy.

Our collection includes signal converters, I/O expanders, sound amplifiers, battery management modules, and more — all tested for quality and compatibility.
Stemvolt’s Electronics Modules are perfect for students, makers, educators, and product developers who need modular electronics for rapid prototyping and innovation.