🛒 Arduino, ESP32 & modules

Arduino Shield

Shields for Arduino Uno, Mega and Leonardo — expansion boards that stack on top of the board with no wires or breadboard. Switch 220V devices with the 4-channel relay shield, or talk to automotive and industrial networks with the MCP2515 CAN BUS shield.

Arduino Shield — buying guide

What is in this category

2 products: MCP2515 CAN BUS Shield (Compatible with Arduino Uno/Mega/Leonardo), 4-Channel Relay Shield Arduino (Uno, Mega, Leonardo, etc.).

How to choose

  • Relay shield — 4 independent channels, 10A / 250V each; lamps, pumps, heaters.
  • CAN BUS shield — MCP2515 + TJA1050; car OBD-II, industrial equipment, CAN network projects.
  • Shields fit any Uno-form-factor board (Uno, Leonardo, Mega); not for the Nano.

Compatibility

Libraries are available in the Arduino IDE (mcp_can, standard digitalWrite); the pin map is on the product page.

Ordering and delivery

All products are in stock in Baku — price and availability are shown live on each product page. Order on the website or in the mobile app; our operator will contact you to confirm payment and delivery within Baku. Wiring diagrams and code examples are in the edu.embedded.az lessons.