IoT and Embedded Systems – Hamtech Electronics Technologies

Arduino uno ATmega328P-PU Microcontroller (28-Pin DIP)

admin — Wed, 25 Mar 2026 04:00:55 +0000

The Arduino UNO R3 is one of the most popular microcontroller boards used for learning and building electronics projects. Powered by the ATmega328P microcontroller, it is perfect for beginners, students, and professionals working on embedded systems, IoT, and robotics.

It provides a simple and flexible platform for developing interactive projects using sensors, motors, displays, and communication modules.

Microcontroller: ATmega328P
Operating voltage: 5V
Input voltage: 7V – 12V (recommended)
Digital I/O pins: 14 (6 PWM outputs)
Analog input pins: 6
Flash memory: 32KB
Clock speed: 16 MHz
USB interface for programming and power
Compatible with Arduino IDE
Supports shields and modules

Applications:

Robotics and smart car projects
IoT systems (with ESP modules)
Home automation
Learning embedded systems
Sensor-based projects

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

PS2 Controller Module

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

The PS2 Controller Module provides a simple way to read button states and analog joystick positions from standard PS2 controllers. It communicates with microcontrollers via a few digital pins and can be used for robotics control, remote-controlled vehicles, or custom game interfaces. Compatible libraries make integration quick and easy for Arduino and ESP32 platforms.

Key Features

Supports standard PS2 wired controllers
Reads buttons and analog joystick values
Easy to interface with Arduino and ESP32
Low power consumption, compact module
Ideal for robotics, remote vehicles, and gaming projects

Variants

Standard PS2 Controller Module
With connector cable for easy Arduino connection

Specifications

Feature	Details
Communication	Digital pins (clock, command, attention, data)
Compatible Controllers	Sony PS2 wired controllers
Operating Voltage	3.3V – 5V
Current Consumption	~10 mA
Dimensions	~45 × 20 × 10 mm

Applications

Robotics control via PS2 joystick
Remote-controlled vehicles
DIY gaming interfaces
Educational electronics projects
Interactive IoT devices

Compatible Boards / Circuits

Arduino Uno, Mega, Nano
ESP32 / ESP8266
Any microcontroller with digital I/O pins

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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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

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

LoRa SX1278 Module

admin — Thu, 20 Nov 2025 19:51:26 +0000

The SX1278 LoRa Module is based on Semtech’s SX1278 LoRa transceiver chip, providing long-range wireless communication with low power consumption.
It supports LoRa spread spectrum modulation, enabling reliable transmission over several kilometers in open environments.

The module communicates via SPI interface and is compatible with microcontrollers like Arduino, ESP32, ESP8266, and Raspberry Pi.
It is commonly used in remote monitoring, smart agriculture, IoT sensor networks, and LoRaWAN applications.

Key Features

Long-range LoRa communication (up to 5–10 km line-of-sight)
Low power consumption for battery-operated applications
SPI interface for microcontroller communication
Frequency: 433/470/868/915 MHz (region-dependent)
Supports LoRa spread spectrum modulation
Compact and lightweight design
Ideal for IoT, remote sensing, telemetry, and smart agriculture

Specifications

Feature	Details
Operating Voltage	3.3V DC
Communication Interface	SPI
Frequency	433/470/868/915 MHz (selectable)
Modulation	LoRa / FSK / GFSK
Output Power	+20 dBm (max)
Sensitivity	–137 dBm (LoRa)
Range	2–10 km (line-of-sight)
Logic Levels	3.3V
Current Consumption	10–120 mA (depending on mode)
Dimensions	25 × 25 mm (approx.)

Applications

IoT wireless sensor networks
Smart agriculture and environmental monitoring
Remote telemetry and data logging
LoRaWAN gateways and end nodes
Home automation and smart city projects
Low-power long-range IoT devices

Compatible Boards / Circuits

Arduino (Uno, Nano, Mega)
ESP32 / ESP8266
Raspberry Pi (with SPI)
LoRa gateways and network devices
Sensors, relays, displays, and actuators