Communications

Communication Modules Philippines: UART, I2C, SPI, RS485, CAN, Ethernet | Circuitrocks

Communication Modules — UART, I²C, SPI, RS485, CAN, Ethernet & More

Connect devices, sensors, and microcontrollers with our full range of communication modules. From simple UART bridges and I²C/SPI expanders to robust RS485, CAN bus, and Ethernet networking, these modules enable reliable data transfer for automation, IoT, robotics, and industrial systems.

UART • I²C • SPI • RS485 • CAN Bus • Ethernet • Level Shifters • Serial Bridges

Why shop communication modules here

  • Versatile interfaces: supports most MCU communication standards
  • Maker-friendly: plug-and-build with Arduino, ESP32 & Raspberry Pi
  • PH support: wiring, protocols & troubleshooting help

Popular uses

  • Connecting sensors & displays to microcontrollers
  • Industrial RS485 & CAN automation networks
  • Long-distance wired communication systems
  • Ethernet-enabled IoT dashboards & PLC interfacing

Recommended add-ons

Featured communication categories

Industrial Buses

Networking & Bridges

Tip: For long-distance wired communication, prefer RS485 or CAN bus over standard UART to avoid noise and signal loss.

Communication module chooser (quick guide)

Need Best choice Notes
Simple MCU-to-PC connection USB–UART adapter Ideal for programming and debugging.
Multiple sensors on shared bus I²C expander Great for low-pin-count microcontrollers.
High-speed peripheral control SPI interface Reliable for displays & fast sensors.
Long-distance communication RS485 module Supports hundreds of meters with differential signaling.
Industrial automation CAN bus module Used in vehicles, robotics, and PLC networks.
Wired IoT or dashboards Ethernet module Reliable and stable for servers & monitoring.

Always check voltage levels, bus termination, and pin compatibility before wiring communication modules.

Starter bundles

  • Industrial RS485 Kit: RS485 module + Arduino + terminal cables
  • CAN Bus Starter: CAN transceiver + ESP32 board
  • Ethernet IoT Kit: W5500 module + Raspberry Pi

FAQ

Are these modules compatible with Arduino/ESP32?

Yes—most communication standards like UART, I²C, SPI, RS485, and CAN work with common microcontroller libraries.

Which module should I use for long-distance wiring?

Use RS485 or CAN bus, as they resist noise and support long cable lengths.

Do I need level shifting?

Yes, if connecting 5V and 3.3V devices—use a logic level shifter to avoid damage.

Do you ship nationwide?

Yes—fast shipping anywhere in the Philippines with same-day processing for in-stock items.

Explore related: RF Modules • Microcontrollers • Cables • Power Supplies

Read More
Communication Modules Philippines: UART, I2C, SPI, RS485, CAN, Ethernet | Circuitrocks

Communication Modules — UART, I²C, SPI, RS485, CAN, Ethernet & More

Connect devices, sensors, and microcontrollers with our full range of communication modules. From simple UART bridges and I²C/SPI expanders to robust RS485, CAN bus, and Ethernet networking, these modules enable reliable data transfer for automation, IoT, robotics, and industrial systems.

UART • I²C • SPI • RS485 • CAN Bus • Ethernet • Level Shifters • Serial Bridges

Why shop communication modules here

  • Versatile interfaces: supports most MCU communication standards
  • Maker-friendly: plug-and-build with Arduino, ESP32 & Raspberry Pi
  • PH support: wiring, protocols & troubleshooting help

Popular uses

  • Connecting sensors & displays to microcontrollers
  • Industrial RS485 & CAN automation networks
  • Long-distance wired communication systems
  • Ethernet-enabled IoT dashboards & PLC interfacing

Recommended add-ons

Featured communication categories

Industrial Buses

Networking & Bridges

Tip: For long-distance wired communication, prefer RS485 or CAN bus over standard UART to avoid noise and signal loss.

Communication module chooser (quick guide)

Need Best choice Notes
Simple MCU-to-PC connection USB–UART adapter Ideal for programming and debugging.
Multiple sensors on shared bus I²C expander Great for low-pin-count microcontrollers.
High-speed peripheral control SPI interface Reliable for displays & fast sensors.
Long-distance communication RS485 module Supports hundreds of meters with differential signaling.
Industrial automation CAN bus module Used in vehicles, robotics, and PLC networks.
Wired IoT or dashboards Ethernet module Reliable and stable for servers & monitoring.

Always check voltage levels, bus termination, and pin compatibility before wiring communication modules.

Starter bundles

  • Industrial RS485 Kit: RS485 module + Arduino + terminal cables
  • CAN Bus Starter: CAN transceiver + ESP32 board
  • Ethernet IoT Kit: W5500 module + Raspberry Pi

FAQ

Are these modules compatible with Arduino/ESP32?

Yes—most communication standards like UART, I²C, SPI, RS485, and CAN work with common microcontroller libraries.

Which module should I use for long-distance wiring?

Use RS485 or CAN bus, as they resist noise and support long cable lengths.

Do I need level shifting?

Yes, if connecting 5V and 3.3V devices—use a logic level shifter to avoid damage.

Do you ship nationwide?

Yes—fast shipping anywhere in the Philippines with same-day processing for in-stock items.

Explore related: RF Modules • Microcontrollers • Cables • Power Supplies

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