Communication Modules – Hamtech Electronics Technologies

W5500 Ethernet

admin — Thu, 20 Nov 2025 19:52:03 +0000

The W5500 Ethernet Module uses the W5500 hardwired TCP/IP embedded Ethernet controller, providing a fast and stable network connection with a SPI interface for easy microcontroller integration. It supports TCP, UDP, ICMP, IPv4, ARP, IGMP, and PPoE protocols, making it suitable for networked devices, IoT systems, web servers, and data transmission projects. The module is widely used in home automation, smart devices, and Ethernet-enabled Arduino and ESP32 projects.

Key Features

W5500 hardwired TCP/IP Ethernet controller
SPI interface for easy connection to microcontrollers
Supports TCP, UDP, ICMP, IPv4, ARP, IGMP, PPoE protocols
10/100 Mbps network speed
Compact and lightweight for embedded applications
Compatible with Arduino, ESP32, Raspberry Pi

Variants

Standard W5500 Module (SPI interface)
W5500 Module with PoE support

Specifications

Feature	Details
Controller	W5500 Ethernet Controller
Interface	SPI (Serial Peripheral Interface)
Operating Voltage	3.3–5V DC
Network Speed	10/100 Mbps
Protocols Supported	TCP, UDP, ICMP, IPv4, ARP, IGMP, PPoE
Operating Temperature	-40°C to 85°C
Dimensions	35 × 25 × 15 mm

Applications

IoT Ethernet projects
Arduino / ESP32 web servers
Network-enabled data loggers
Smart home devices with Ethernet connectivity
Embedded networked systems

Compatible Boards / Circuits

Arduino Uno, Mega, Nano
ESP32 / ESP8266
Raspberry Pi (via SPI)
Any microcontroller supporting SPI communication

CAN MCP2515

admin — Thu, 20 Nov 2025 19:52:02 +0000

CAN MCP2515 is a commonly used component in embedded systems, prototyping, and automation projects.

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

Feature	Details
Controller	MCP2515 (SPI)
Transceiver	TJA1050
CAN Protocol	CAN 2.0A / 2.0B
Speed	Up to 1Mbps
Interface	SPI (CS, SCK, MOSI, MISO, INT)
Operating Voltage	5V
Crystal Frequency	8MHz
CAN Bus Terminals	CANH, CANL
Dimensions	~55mm x 45mm

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

ENC28J60 LAN

admin — Thu, 20 Nov 2025 19:52:02 +0000

The ENC28J60 Ethernet LAN Module is a reliable and affordable networking solution designed for microcontrollers that require wired Ethernet connectivity. Built around the Microchip ENC28J60 single-chip Ethernet controller, this module provides a full 10Mbps Ethernet interface via a standard SPI communication bus.

It includes an onboard crystal oscillator, voltage regulator, RJ45 connector with integrated magnetics, and status LEDs for link and activity indication. The module operates from 3.3V logic, making it suitable for Arduino (with level shifting), ESP8266, ESP32, STM32, PIC, AVR, and most embedded systems.

This module is perfect for IoT systems that require stable and secure wired network connectivity, especially in environments with heavy interference where Wi-Fi is unreliable.

Key Features

ENC28J60 Ethernet Controller
– Supports 10BASE-T Ethernet with integrated MAC + PHY.
SPI Interface
– Simple integration with microcontrollers using SPI communication.
Integrated RJ45 Jack with Magnetics
– Provides stable signal quality and EMI protection.
Built-in 3.3V Voltage Regulator
– Allows powering from 5V while maintaining safe logic levels.
Status LEDs
– Link activity and network status indicators.
Low Cost & Compact
– Ideal for DIY IoT and embedded Ethernet solutions.

Specifications

Feature	Details
Controller	Microchip ENC28J60
Interface	SPI (Full duplex)
Ethernet Standard	10BASE-T (10 Mbps)
Operating Voltage	3.3V logic (5V power supported with regulator)
Current Consumption	~160mA
Crystal	25MHz
Pins	VCC, GND, SCK, SI, SO, CS, INT, RESET
Connector	RJ45 with built-in transformer
Dimensions	Approx. 48 × 25 mm

Compatible Boards

Arduino Uno / Mega / Nano (use 5V → 3.3V logic shifter recommended)
ESP32 / ESP8266
STM32
PIC Microcontrollers
AVR ATmega/ATtiny
Raspberry Pi (via SPI)
NodeMCU, Wemos D1 Mini

Applications

IoT Ethernet devices
Smart home and industrial automation
Web servers on microcontrollers
Network-controlled relays and sensors
Wired communication in noisy/EMI-prone environments
Data loggers with LAN upload
Security systems and embedded control panels

Package Includes

1 × ENC28J60 Ethernet LAN Module

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I2C Logic Level Converter

admin — Thu, 20 Nov 2025 19:52:01 +0000

The I2C Logic Level Converter is a bi-directional 4-channel module that allows microcontrollers and peripherals with different voltage levels to communicate without damaging components. Commonly used in projects combining 3.3V boards like ESP32 or Raspberry Pi with 5V sensors, modules, and displays. Its bi-directional design ensures smooth communication across all I2C lines.

Key Features

4-channel bi-directional logic level conversion
Supports 1:1 conversion for SDA and SCL lines
Compatible with I2C communication protocol
Works with 3.3V and 5V logic devices
Compact, solderless, and easy to use

Variants

4-channel I2C Logic Level Converter (standard module)
2-channel version (for SDA & SCL only)

Specifications

Feature	Details
Channels	4 bi-directional
Input Voltage	HV: 5V, LV: 3.3V
Supported Logic	3.3V ↔ 5V
Communication	I2C, general logic signals
Dimensions	~30 × 17 × 3 mm

Applications

Interface 3.3V microcontrollers (ESP32, Raspberry Pi) with 5V I2C sensors/modules
Safely connect OLED displays, RTC modules, and other peripherals
Embedded systems requiring mixed voltage communication
IoT projects with multi-voltage devices

Compatible Boards / Circuits

Arduino Uno, Mega, Nano
ESP32 / ESP8266
Raspberry Pi / Pico
Any I2C-compatible device

raspberry pi 3 B+

admin — Thu, 20 Nov 2025 19:51:43 +0000

The Raspberry Pi 3 Model B+ features a quad-core 64-bit ARM Cortex-A53 processor running at 1.4 GHz, combined with 1GB RAM, making it capable of handling a wide range of applications from media streaming to robotics. It comes with onboard Wi-Fi (802.11 b/g/n/ac) and Bluetooth 4.2, a Gigabit Ethernet interface, and 40 GPIO pins for sensor and actuator interfacing. It supports various operating systems including Raspberry Pi OS, Ubuntu, and other Linux distributions. Its compact size, energy efficiency, and extensive community support make it a top choice for makers, educators, and engineers.

Key Features

Quad-core ARM Cortex-A53 64-bit CPU at 1.4 GHz
1 GB LPDDR2 RAM
Built-in Wi-Fi 802.11 b/g/n/ac and Bluetooth 4.2
40 GPIO pins for hardware interfacing
Full HDMI output for video and audio
MicroSD slot for OS and storage
Compact, low-power design

Specifications

Feature	Details
Processor	Quad-core ARM Cortex-A53 1.4 GHz
RAM	1 GB LPDDR2
Connectivity	Wi-Fi 802.11 b/g/n/ac, Bluetooth 4.2, Ethernet
GPIO Pins	40
USB Ports	4 × USB 2.0
Video & Audio	HDMI, Composite, 3.5mm audio
Storage	MicroSD slot
Power Supply	5V / 2.5A via micro USB
Dimensions	85 × 56 × 17 mm

Applications

IoT devices and home automation
Robotics and sensor projects
Media streaming and retro gaming
Educational computing and programming
DIY electronics and maker projects

Compatible Boards / Circuits

Raspberry Pi HATs, sensors, displays, and relays
Compatible with Arduino and microcontroller-based expansions

RC522 RFID Reader

admin — Thu, 20 Nov 2025 19:51:29 +0000

The RC522 RFID Reader Module is a low-cost, highly integrated RFID/NFC solution that operates at 13.56 MHz. It supports reading and writing to MIFARE 1K/4K RFID cards and tags.
The module uses an SPI interface (with optional I²C/UART support) for fast communication with microcontrollers such as Arduino, ESP32, and Raspberry Pi.
It is commonly used in access control systems, attendance systems, contactless identification, IoT authentication, and secure door-lock projects.
The module includes an onboard PCB antenna for stable reading performance and offers up to 5 cm reading distance depending on card/tag type.

Key Features

13.56 MHz RFID/NFC Reader/Writer
Supports MIFARE 1K, 4K, Ultralight, and compatible tags
SPI interface for fast communication
Optional I²C and UART (via firmware configuration)
Low power consumption
Up to 5 cm read distance
Compact, easy-to-integrate design
Compatible with Arduino, ESP32, Raspberry Pi

Specifications

Feature	Details
Operating Voltage	3.3V DC
Communication	SPI (default), I²C, UART
Operating Frequency	13.56 MHz
Supported Tags	MIFARE 1K/4K, Ultralight, NTAG
Maximum Read Range	Up to 5 cm
Current Consumption	13–26 mA
Logic Levels	3.3V (use level shifter for 5V boards)
Dimensions	40 × 60 mm

Applications

RFID access control systems
Attendance and logging systems
Smart door locks
NFC-based IoT authentication
Asset tracking and inventory systems
Contactless identification systems

Compatible Boards / Circuits

Arduino (Uno, Mega, Nano — via level shifting)
ESP32 / ESP8266 (direct 3.3V logic)
Raspberry Pi
Works with RFID cards, key fobs, stickers, and tags

SIM900 GSM Module

admin — Thu, 20 Nov 2025 19:51:28 +0000

The SIM900 GSM/GPRS Module is a compact and reliable communication module widely used in IoT, remote monitoring, tracking systems, and wireless control applications.
It supports quad-band GSM frequencies, enabling global compatibility for SMS, voice calling, and GPRS data transmission.

The module communicates via UART (TX/RX), making it easy to interface with Arduino, ESP32, Raspberry Pi, and other microcontrollers.
It includes essential features such as onboard power regulation, antenna support, SIM card slot, status LEDs, and network indicators.
The SIM900 is ideal for projects that require wireless data logging, remote SMS alerts, GPS/GSM combined systems, and MQTT over GPRS communication.

Key Features

Quad-band GSM/GPRS (850/900/1800/1900 MHz)
Supports SMS, voice calls, and GPRS data
UART serial communication
Built-in TCP/UDP stack
Onboard SIM card holder
External antenna connector
Low power consumption
AT Command set support
Compatible with Arduino, ESP32, Raspberry Pi

Specifications

Feature	Details
Operating Voltage	5V (module supply), 3.3V logic compatible
GSM Bands	850/900/1800/1900 MHz
Communication Interface	UART (TX/RX), Baud: 9600–115200
GPRS Class	10
SMS Support	Text & PDU mode
Voice Support	Call in/out
Antenna	External GSM antenna
Power Consumption	Idle: ~20–30 mA, Peak: up to 2A
SIM Type	Standard SIM
Dimensions	~40 × 40 mm (varies by board version)

Applications

SMS-based control systems
Remote monitoring & telemetry
IoT data transmission over GPRS
Vehicle tracking (with GPS module)
Home/industrial alert systems
GSM-based automation
Wireless sensor networks
MQTT via GSM/GPRS

Compatible Boards / Circuits

Arduino (Uno, Nano, Mega — ensure 2A power supply)
ESP32 / ESP8266
Raspberry Pi (via UART)
Works with GPS modules, relays, sensors, data loggers

SIM7600E-H LTE Module

admin — Thu, 20 Nov 2025 19:51:28 +0000

The SIM7600E-H LTE Module is a high-performance 4G communication module designed for IoT, M2M, and industrial automation.
It supports LTE CAT-4 with fast download/upload speeds, enabling real-time cloud communication, remote video streaming, data logging, and broadband connectivity.

Equipped with GNSS (GPS/GLONASS/BeiDou), the module offers accurate positioning for vehicle tracking and navigation systems.
It supports multiple communication protocols including TCP, UDP, HTTP, HTTPS, FTP, MQTT, and more—making it suitable for both simple and advanced IoT gateways.

The SIM7600E-H module communicates via USB or UART, making it compatible with Arduino, ESP32, Raspberry Pi, and Linux SBCs. It is widely used in 4G routers, CCTV connectivity, telemetry systems, and vehicle tracking units.

Key Features

4G LTE CAT-4 high-speed connectivity
Supports LTE / WCDMA / GSM networks
Built-in GNSS: GPS, GLONASS, BeiDou
Supports SMS, voice calling, VoLTE (variant dependent)
USB 2.0 high-speed interface (plug-and-play on Raspberry Pi)
UART interface for microcontrollers
Supports TCP/UDP, HTTP, HTTPS, FTP, MQTT
Low power consumption
Works with Arduino, ESP32, Raspberry Pi, Linux systems

Specifications

Feature	Details
Operating Voltage	3.4V – 4.2V (typ. 3.8V)
LTE Category	CAT-4
Download Speed	Up to 150 Mbps
Upload Speed	Up to 50 Mbps
Interfaces	USB 2.0, UART, GPIO
GNSS Support	GPS / GLONASS / BeiDou
Network Support	LTE, WCDMA, GSM
SMS Support	Text & PDU
Positioning Accuracy	<2.5 m CEP
Power Consumption	Idle ~10–20 mA (network dependent)
SIM Type	Nano/Micro SIM (board dependent)
Dimensions	30 × 30 mm (core module), varies by breakout

Applications

IoT and industrial automation
Vehicle tracking & fleet management
Remote CCTV/Camera 4G transmission
Smart city and environmental monitoring
IoT gateways and routers
GPS tracking systems
Remote telemetry and SCADA
High-speed cloud connectivity

Compatible Boards / Circuits

Arduino (Mega recommended)
ESP32 / ESP8266
Raspberry Pi (USB direct support)
Jetson Nano, Linux PCs, SBCs
Compatible with LTE antennas, GPS antennas, IoT dashboards

PN532 NFC Reader

admin — Thu, 20 Nov 2025 19:51:28 +0000

The PN532 NFC Reader Module is a versatile solution for NFC and RFID applications.
It supports multiple communication protocols, including SPI, I²C, and UART, for easy integration with microcontrollers such as Arduino, ESP32, and Raspberry Pi.
The module can read and write to MIFARE 1K/4K cards, NTAG, FeliCa, and other NFC tags, making it suitable for access control systems, attendance tracking, payment systems, and IoT authentication.

Equipped with an onboard PCB antenna, the PN532 ensures stable and reliable NFC communication. It is widely used in hobbyist and industrial applications for NFC-based interactions.

Key Features

Supports NFC and RFID standards: ISO/IEC 14443 Type A/B, MIFARE, FeliCa
Communication via SPI, I²C, or UART
Reads and writes to MIFARE, NTAG, and other NFC tags
Onboard PCB antenna for stable reading
High-speed and reliable communication
Compact and easy-to-integrate design
Compatible with Arduino, ESP32, Raspberry Pi

Specifications

Feature	Details
Operating Voltage	3.3V – 5V DC
Communication Interfaces	SPI, I²C, UART
Supported Cards	MIFARE 1K/4K, NTAG, FeliCa
Maximum Read Range	~5 cm (varies by card/tag)
Operating Frequency	13.56 MHz
Logic Levels	3.3V / 5V compatible
Current Consumption	~15–50 mA
Dimensions	40 × 60 mm (approx.)

Applications

NFC-based access control and attendance systems
Contactless payment and identification systems
IoT authentication and security projects
Asset tracking and inventory management
Educational and DIY NFC projects
Smart card applications and interactive electronics

Compatible Boards / Circuits

Arduino (Uno, Mega, Nano)
ESP32 / ESP8266
Raspberry Pi
Works with NFC cards, key fobs, stickers, and tags

ESP32 LoRa TTGO

admin — Thu, 20 Nov 2025 19:51:27 +0000

The ESP32 LoRa TTGO board combines the dual-core ESP32 microcontroller with LoRa SX1276/SX1278 radio technology, enabling long-range, low-power wireless communication alongside Wi-Fi and Bluetooth connectivity.

It features OLED display options on some variants, multiple GPIOs, ADC, PWM, SPI, I²C, and UART interfaces, making it highly versatile for IoT, sensor nodes, smart agriculture, and telemetry projects.
The board can be programmed using Arduino IDE, MicroPython, or ESP-IDF, allowing flexible development for both hobbyist and professional applications.

Its long-range LoRa capability allows communication over several kilometers in open environments, making it ideal for remote monitoring, weather stations, and LoRaWAN-based IoT networks.

Key Features

Dual-core ESP32 microcontroller with Wi-Fi & Bluetooth
Integrated LoRa SX1276/SX1278 module for long-range communication
Optional OLED display (0.96″ or 1.3″) on some variants
Multiple GPIO pins supporting ADC, PWM, SPI, I²C, UART
Low-power consumption suitable for battery-powered applications
Programmable via Arduino IDE, MicroPython, or ESP-IDF
Supports LoRaWAN or point-to-point LoRa communication
Compact and versatile for IoT and wireless projects

Specifications

Feature	Details
Microcontroller	ESP32 Dual-core Tensilica LX6
Operating Voltage	3.3V DC
Flash Memory	4 MB (varies by variant)
SRAM	520 KB
LoRa Module	SX1276 / SX1278
Frequency Bands	433 MHz, 868 MHz, 915 MHz (region dependent)
GPIO Pins	~16 (depending on variant)
Interfaces	UART, SPI, I²C, ADC, PWM
Display	Optional OLED 0.96″ / 1.3″
Communication	Wi-Fi 802.11 b/g/n, Bluetooth 4.2, LoRa long-range
Dimensions	50 × 25 mm (approx.)

Applications

Long-range IoT sensor nodes
Smart agriculture and environmental monitoring
Remote telemetry systems
LoRaWAN gateways and networks
Wireless data logging
Home automation and smart city projects
Low-power battery-operated IoT devices

Compatible Boards / Circuits

Arduino IDE (ESP32 core)
MicroPython or ESP-IDF
LoRa networks and gateways
Sensors, relays, displays, and actuators
IoT dashboards and cloud integration platforms