The MCP2515 CAN Bus Module is a powerful and reliable controller + transceiver combo used to add Controller Area Network (CAN) communication to your microcontroller projects. It integrates the MCP2515 CAN controller and TJA1050 high-speed CAN transceiver, allowing stable communication in noisy industrial environments.

This module provides an SPI interface for easy connection to boards such as Arduino, ESP8266, ESP32, STM32, and Raspberry Pi. It fully supports CAN 2.0B protocol and offers data rates up to 1Mbps, making it suitable for automotive ECUs, robotics, industrial sensors, battery management systems, and automation networks.

Whether you’re reverse-engineering vehicle CAN data, building a BMS, or implementing distributed sensors, the MCP2515 module delivers reliable and robust performance.

Key Features

• MCP2515 CAN Controller with SPI interface

• TJA1050 High-Speed CAN Transceiver

• Fully compliant with CAN 2.0A/B protocols

• Supports up to 1Mbps data rate

• Hardware message filtering and masks

• 5V operating voltage

• Screw terminals for easy CAN-H / CAN-L wiring

• Onboard 8MHz crystal for stable communication

• Compatible with Arduino, ESP32, ESP8266, STM32, Raspberry Pi

• High noise immunity for industrial environments

Specifications

Applications

• Automotive CAN Network (ECUs, OBD-II, dashboard systems)

• Battery Management Systems (BMS)

• Robotics and automation

• Industrial control and sensors

• CAN-based communication research

• Distributed embedded systems

• Electric vehicles and motor controllers

Key Features

• 20 characters × 4 lines display

• HD44780 or compatible controller

• Backlight for better visibility

• Supports 4-bit and 8-bit parallel interface

• Compatible with Arduino, ESP32, and Raspberry Pi

• I2C interface available with adapter for simplified wiring

Variants

• Standard 20×4 LCD (parallel interface)

• 20×4 LCD with I2C adapter (simpler connection)

Specifications

Applications

• Arduino, ESP32, and Raspberry Pi projects

• Sensor data display (temperature, humidity, etc.)

• Menu-driven interfaces for embedded systems

• Robotics and automation feedback screens

• DIY IoT dashboards and monitoring systems

Compatible Boards / Circuits

• Arduino Uno, Mega, Nano

• ESP32 / ESP8266

• Raspberry Pi (GPIO or I2C)

• Any microcontroller supporting 4-bit/8-bit or I2C LCD communication

Key Features

• 128×32 pixel resolution

• Blue OLED for high contrast

• I²C interface

• Low power consumption

• Wide viewing angle

• Supports Arduino, ESP32, Raspberry Pi

Specifications

Applications

• Sensor data display

• IoT devices

• Battery monitors

• Compact UIs

• Wearable electronics

Operating between 4.5V and 16V, the NE555 is compatible with a wide range of microcontroller and analog circuits. It delivers high output current (up to 200mA), allowing direct driving of LEDs, small relays, and buzzer modules without additional transistors.

Ideal for students, hobbyists, engineers, and anyone building timing or waveform-generator circuits.

Key Features:

• Classic 555 timer IC (NE555)

• Operates from 4.5V to 16V

• Up to 200mA output current

• Works in monostable, astable & bistable modes

• Adjustable frequency and duty cycle

• Stable and accurate timing

• Ideal for oscillators, delays, PWM & clock pulses

The IC includes integrated flyback diodes, offering built-in protection when switching inductive loads. It accepts both 3.3V and 5V logic, making it perfect for modern embedded systems. The ULN2003 is widely used in automation systems, robotics, vending machines, automotive projects, and industrial control circuits.

Key Features:

• 7-channel NPN Darlington driver

• Up to 500mA current sinking per channel

• Handles load voltages up to 50V

• Built-in freewheeling diodes for inductive protection

• Compatible with 3.3V/5V logic

• Ideal for stepper motors, relays, solenoids, LED drivers

• Companion to shift registers (74HC595) and microcontrollers

The chip features integrated flyback diodes, allowing safe operation with inductive loads such as relays and motors without needing additional protection components. The ULN2803A accepts both 3.3V and 5V logic, making it widely compatible across microcontroller platforms.

Common applications include relay driving circuits, stepper motor control, LED displays, home automation, robotics, vending machines, and industrial automation.

Key Features:

• 8-channel NPN Darlington transistor array

• Up to 500mA per channel

• Supports load voltages up to 50V

• Built-in flyback diodes for inductive loads

• TTL/CMOS compatible inputs

• Ideal for relays, motors, LEDs, solenoids, and displays

• Direct companion to shift registers like 74HC595

Each channel can source up to 500mA peak current, allowing safe control of demanding loads. The chip includes built-in clamp diodes for switching inductive loads, reducing the need for external protection circuitry.

Unlike typical low-side drivers like ULN2803, the UDN2981 is a high-side driver, meaning it switches the positive voltage line — ideal for powering common-cathode LED matrices and displays.

Key Features:

• 8-channel high-side driver

• Handles up to 50V output

• Up to 500mA peak current per channel

• Built-in output clamp diodes for inductive loads

• Compatible with TTL and CMOS logic

• Perfect for LED matrices, displays, relays, solenoids, and high-voltage loads

• Drop-in alternative: TD62783, MIC2981

By daisy-chaining multiple 74HC595 chips, you can scale up your output capacity to dozens or even hundreds of pins. The device operates from 2V–6V, making it compatible with most logic-level microcontrollers. It includes storage registers, output latches, and tri-state outputs for stable and reliable operation.

Ideal for LED matrices, display driving, multiplexing projects, and automation circuits.

Key Features:

• 8-bit serial-in, parallel-out shift register

• Operates on 2V to 6V

• High-speed CMOS technology

• Cascade/daisy-chain support

• Low power consumption

• Tri-state outputs

• Compatible with Arduino, ESP32, ESP8266, Raspberry Pi