Microcontrollers – 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

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

Raspberry Pi Pico

admin — Thu, 20 Nov 2025 19:51:25 +0000

The Raspberry Pi Pico is built around the RP2040 dual-core ARM Cortex-M0+ processor running at 133 MHz.
It provides 264 KB of SRAM, 2 MB of onboard flash memory, and 26 multi-function GPIO pins supporting PWM, SPI, I²C, UART, and ADC.

Its compact form factor, low cost, and high flexibility make it suitable for robotics, sensor interfacing, home automation, and educational electronics projects.
The board can be programmed using MicroPython, C/C++, or Arduino IDE, offering versatility for beginners and advanced developers alike.

Key Features

RP2040 dual-core ARM Cortex-M0+ processor @ 133 MHz
264 KB SRAM, 2 MB onboard QSPI flash memory
26 multi-function GPIO pins
PWM, SPI, I²C, UART, and ADC support
Low power consumption and compact design
Programmable with MicroPython, C/C++, or Arduino IDE
Suitable for IoT, robotics, and embedded applications

Specifications

Feature	Details
Microcontroller	RP2040 Dual-core Cortex-M0+
Operating Voltage	3.3V DC (via USB)
Flash Memory	2 MB QSPI Flash
SRAM	264 KB
GPIO Pins	26 multifunction pins
Interfaces	UART, SPI, I²C, PWM, ADC
USB	Micro-USB 1.1
Dimensions	51 × 21 mm

Applications

Robotics and motor control projects
Sensor interfacing and IoT projects
Home automation systems
Data logging and environmental monitoring
Educational electronics and DIY projects
Embedded systems development

Compatible Boards / Circuits

Raspberry Pi Pico projects using MicroPython or C/C++
Arduino IDE (with RP2040 core)
Sensors, relays, actuators, displays, and motors
IoT dashboards and connected devices

Raspberry Pi Pico W

admin — Thu, 20 Nov 2025 19:51:25 +0000

The Raspberry Pi Pico W is an enhanced version of the original Pico board, adding 802.11n Wi-Fi for wireless connectivity.
It is powered by the RP2040 dual-core ARM Cortex-M0+ processor running at 133 MHz, offering high performance for embedded applications.
The board features 264 KB of SRAM, 2 MB of onboard flash, and 26 multi-function GPIO pins supporting PWM, SPI, I²C, UART, and ADC.

Its small form factor, low cost, and wireless capabilities make it ideal for IoT devices, home automation, sensor networks, and robotics projects. The Pico W can be programmed using MicroPython, C/C++, or Arduino IDE.

Key Features

RP2040 dual-core ARM Cortex-M0+ processor @ 133 MHz
264 KB SRAM, 2 MB onboard QSPI Flash
Built-in 802.11n Wi-Fi
26 multifunction GPIO pins (PWM, SPI, I²C, UART, ADC)
Low power consumption, compact design
Programmable with MicroPython, C/C++, or Arduino IDE
Ideal for IoT, robotics, and embedded projects

Specifications

Feature	Details
Microcontroller	RP2040 Dual-core Cortex-M0+
Operating Voltage	3.3V DC (via USB)
Flash Memory	2 MB QSPI Flash
SRAM	264 KB
GPIO Pins	26 multifunction pins
Wi-Fi	2.4 GHz 802.11n
Interfaces	UART, SPI, I²C, PWM, ADC
USB	Micro-USB 1.1
Dimensions	51 × 21 mm

Applications

IoT devices and wireless sensors
Home automation and smart devices
Robotics and motor control projects
Data logging and environmental monitoring
Wi-Fi-enabled embedded systems
Educational and DIY electronics projects

Compatible Boards / Circuits

Raspberry Pi Pico W MicroPython or C/C++ projects
Arduino IDE compatible (with RP2040 core)
Sensors, relays, actuators, displays, and motors
Wi-Fi IoT dashboards and cloud connectivity

Digispark ATTiny85

admin — Thu, 20 Nov 2025 19:51:24 +0000

The Digispark ATTiny85 is a tiny, low-cost USB development board featuring the ATTiny85 microcontroller.
It provides 6 I/O pins, onboard USB interface for programming, and can be programmed directly via the Arduino IDE with the Digispark add-on.
Despite its small size, it is versatile enough for hobbyist and DIY projects including LED control, sensors, automation, and compact IoT devices.
The board is powered via USB, making it easy to integrate into small electronics projects where space and cost are important.

Key Features

Based on ATTiny85 8-bit microcontroller
Onboard USB for programming (no external programmer needed)
6 GPIO pins (2 support PWM)
Operates at 5V USB power
Programmable with Arduino IDE (Digispark add-on)
Small, compact, and low-power
Ideal for wearable electronics, DIY, and IoT projects

Specifications

Feature	Details
Microcontroller	ATTiny85
Operating Voltage	5V DC (via USB)
Clock Speed	16 MHz (internal)
GPIO Pins	6 (2 PWM, 2 analog inputs)
USB	Onboard USB interface
Flash Memory	8 KB (ATTiny85)
SRAM	512 bytes
EEPROM	512 bytes
Current Consumption	~5–10 mA idle
Dimensions	18 × 22 mm

Applications

Small IoT devices and sensors
LED lighting and PWM control projects
Wearable electronics
DIY automation and robotics
USB devices and HID emulation
Compact data loggers and timers

Compatible Boards / Circuits

Arduino IDE (with Digispark add-on)
USB-powered sensors and modules
Relay modules, LEDs, buzzers, and small actuators
Compatible with ATTiny85 libraries for Arduino

STM32F103C8T6 Blue Pill

admin — Thu, 20 Nov 2025 19:51:23 +0000

The STM32F103C8T6 Blue Pill is based on the STM32F103C8T6 microcontroller featuring a 32-bit ARM Cortex-M3 core with 72 MHz clock speed. It offers multiple GPIO pins, PWM outputs, ADC channels, and interfaces including UART, SPI, and I²C. Its compact form factor makes it ideal for breadboard prototyping and embedded applications. The board is compatible with STM32CubeIDE, Arduino IDE (with STM32 core), and PlatformIO, making it accessible for both beginners and advanced developers.

Key Features

ARM Cortex-M3 STM32F103C8T6 microcontroller
72 MHz high-speed processing
20+ GPIO pins with PWM support
ADC 12-bit resolution for sensor integration
Communication interfaces: UART, SPI, I²C
USB interface for programming and debugging
Breadboard-friendly design
Compatible with STM32CubeIDE, Arduino IDE, PlatformIO

Variants

Standard STM32F103C8T6 Blue Pill Board
Blue Pill with onboard USB Mini-B connector

Specifications

Feature	Details
Microcontroller	STM32F103C8T6 (Cortex-M3)
Operating Voltage	3.3V
Input Voltage	5V via USB or external supply
Flash Memory	64 KB
SRAM	20 KB
Digital I/O Pins	20+
ADC	12-bit
Communication Interfaces	UART, SPI, I²C, USB
Clock Speed	72 MHz
Dimensions	52 × 30 × 10 mm

Applications

Robotics and automation projects
IoT and sensor devices
Embedded system prototypes
Motor control and PWM applications
DIY electronics and hobbyist projects

Compatible Boards / Circuits

STM32CubeIDE for STM32 programming
Arduino IDE (with STM32 core)
PlatformIO IDE
Compatible with sensors, relays, motors, and displays

STM32F401 Board

admin — Thu, 20 Nov 2025 19:51:23 +0000

The STM32F401 Development Board is based on the STM32F401 microcontroller featuring an ARM Cortex-M4 core with floating-point unit, delivering high-speed computation and low power consumption. The board comes with multiple GPIO pins, ADCs, timers, PWM outputs, and communication interfaces like UART, SPI, I²C, and USB. It is perfect for real-time control, robotics, IoT devices, motor control, and advanced embedded systems. The board is fully compatible with STM32CubeIDE, Arduino IDE (with STM32 add-ons), and PlatformIO.

Key Features

ARM Cortex-M4 STM32F401 microcontroller
High-speed processing at 84 MHz
Multiple GPIO, ADC, PWM, UART, SPI, I²C interfaces
USB interface for programming and debugging
Breadboard-friendly compact size
Compatible with STM32CubeIDE, Arduino IDE, and PlatformIO
Low power consumption, ideal for battery-powered applications

Variants

STM32F401 Standard Development Board
STM32F401 “Black Pill” Board

Specifications

Feature	Details
Microcontroller	STM32F401 (Cortex-M4)
Operating Voltage	3.3V
Input Voltage	5V via USB
Flash Memory	512 KB
SRAM	96 KB
Digital I/O Pins	26+
ADC	12-bit
Communication Interfaces	UART, SPI, I²C, USB
Clock Speed	84 MHz
Dimensions	52 × 22 mm

Applications

Robotics and automation projects
IoT devices and sensors
Motor control and real-time embedded systems
Data acquisition and signal processing
Wearable electronics and portable devices

Compatible Boards / Circuits

STM32CubeIDE for STM32 programming
Arduino IDE (with STM32 core)
PlatformIO IDE
Compatible with sensors, actuators, and displays

ESP8266 NodeMCU

admin — Thu, 20 Nov 2025 19:51:22 +0000

The ESP8266 NodeMCU integrates the ESP8266 Wi-Fi SoC with a USB-to-serial interface, making it easy to program via the Arduino IDE or Lua. It offers multiple GPIO pins, PWM, ADC, I²C, and SPI interfaces. Its built-in Wi-Fi allows for fast development of IoT devices, smart home automation systems, and wireless sensor networks. The board also supports deep sleep mode for energy-efficient applications.

Key Features

ESP8266 Wi-Fi microcontroller with 80 MHz CPU
Integrated USB interface for easy programming
Multiple GPIO pins with PWM, ADC, I²C, and SPI support
Breadboard-friendly form factor
Deep sleep mode for low-power IoT applications
Supports Arduino IDE and NodeMCU Lua firmware

Variants

ESP8266 NodeMCU V2 (CH340 USB)
ESP8266 NodeMCU V3 (CP2102 USB)

Specifications

Feature	Details
Microcontroller	ESP8266
Operating Voltage	3.3V
Input Voltage	5V via USB
Flash Memory	4 MB
Digital I/O Pins	11
ADC	10-bit
Wi-Fi	802.11 b/g/n
Clock Speed	80 MHz
Dimensions	48 × 25 × 13 mm

Applications

IoT devices and sensor networks
Smart home automation
Wireless data logging and monitoring
Remote control systems
Wi-Fi-enabled robotics projects

Compatible Boards / Circuits

Arduino IDE for ESP8266
Compatible with various sensors, relays, and displays
Can be interfaced with Wemos shields and accessories

Wemos D1 Mini

admin — Thu, 20 Nov 2025 19:51:22 +0000

The Wemos D1 Mini is a small Wi-Fi development board built around the ESP8266 microcontroller, offering full TCP/IP networking capabilities. It is breadboard-friendly and programmable via the Arduino IDE. Despite its small size, it provides multiple digital I/O pins, PWM, I²C, and SPI interfaces. It is ideal for IoT devices, smart home projects, Wi-Fi sensors, and automation systems. The board also supports deep sleep mode for low-power applications.

Key Features

ESP8266 microcontroller with 80 MHz CPU
Integrated Wi-Fi (802.11 b/g/n)
11 digital I/O pins, PWM, I²C, SPI
USB interface for programming and power
Breadboard-friendly compact form factor
Supports Arduino IDE and NodeMCU firmware
Deep sleep mode for low-power IoT applications

Variants

Wemos D1 Mini (standard)
Wemos D1 Mini Pro (with external antenna for longer range)

Specifications

Feature	Details
Microcontroller	ESP8266
Operating Voltage	3.3V
Input Voltage	5V via USB
Digital I/O Pins	11
Flash Memory	4 MB
Clock Speed	80 MHz
Wi-Fi	802.11 b/g/n
Dimensions	34 × 25 × 6 mm

Applications

IoT sensors and devices
Home automation systems
Wi-Fi-enabled robots and gadgets
Smart switches and relays
Wireless data logging

Compatible Boards / Circuits

Arduino IDE for ESP8266
Compatible with Wemos shields and accessories
Can interface with sensors, relays, and displays

Arduino Pro Mini

admin — Thu, 20 Nov 2025 19:51:21 +0000

The Arduino Pro Mini is a small microcontroller board that provides the power of the Arduino platform in a minimal footprint. It features 14 digital I/O pins, 6 PWM outputs, and 8 analog inputs, with a 16 MHz clock speed. Unlike the Nano, it does not include a built-in USB interface; programming is done via an external USB-to-serial adapter. Its small size and low power consumption make it ideal for wearable electronics, sensor projects, IoT devices, and compact robotics.

Key Features

ATmega328P microcontroller
14 digital I/O pins (6 PWM outputs)
8 analog input pins
Operating voltage: 3.3V or 5V variants
External USB-to-serial programming required
Small, lightweight, and breadboard-friendly
Compatible with Arduino IDE

Variants

Arduino Pro Mini 3.3V / 8 MHz
Arduino Pro Mini 5V / 16 MHz

Specifications

Feature	Details
Microcontroller	ATmega328P
Operating Voltage	3.3V or 5V
Input Voltage (recommended)	3.35–12V
Digital I/O Pins	14 (6 PWM outputs)
Analog Input Pins	8
Flash Memory	32 KB (2 KB used by bootloader)
SRAM	2 KB
EEPROM	1 KB
Clock Speed	8 MHz (3.3V) / 16 MHz (5V)
Dimensions	33 × 18 × 8 mm

Applications

Wearable electronics and compact devices
IoT and sensor-based projects
Mini robotics and automation
Embedded system prototypes
Space-constrained DIY electronics

Compatible Boards / Circuits

USB-to-serial adapter for programming
Arduino shields compatible with Pro Mini
Breadboard for prototyping
Compatible with Arduino IDE and libraries