SmartElex Aryabhatta 8051 Microcontroller AT89S52 Development Board with Integrated USB Programmer

ATMEGA328P SMD IC for Arduino Nano/UNO – AVR Microcontroller The ATMEGA328P SMD IC (ATMEGA328P-AU) is a high-performance 8-bit AVR microcontroller widely used in Arduino Nano and Arduino Uno boards. Designed with picoPower technology, this SMD version includes 32KB ISP Flash, 2KB SRAM, 1KB EEPROM, multiple timers, USART, SPI, and I2C support. Making it ideal for embedded electronics, DIY projects, automation systems, and IoT applications. Its compact SMD package makes it suitable for custom PCB designs and small-form-factor projects. This microcontroller is fully compatible with Arduino IDE, making programming easy using an AVR programmer or bootloader. With features like 23 GPIO pins, 6-channel 10-bit ADC, watchdog timer, and flexible power-saving modes, the ATMEGA328P SMD IC delivers powerful performance while maintaining low power consumption. Whether you're building a new Arduino-compatible board or repairing an existing one, this IC provides reliability, stability, and seamless integration. Features: ATMEGA328P-AU SMD AVR microcontroller used in Arduino Nano/UNO boards. Supports 32KB Flash memory with read-while-write capability, 1KB EEPROM, and 2KB SRAM. Fully compatible with Arduino IDE; can be programmed using an AVR programmer. Offers 23 GPIO pins, 3 timers/counters, watchdog timer, and hardware serial communication. Integrated SPI, I2C (TWI), and USART interfaces for seamless connectivity. Operates on 1.8V to 5.5V, suitable for low-power and battery-based projects. 6-channel 10-bit ADC (8-channel in TQFP package) for accurate analog sensing. SMD design ideal for custom PCBs, compact electronics, and embedded projects.

TL866 - Universal IC Programmer The TL866II plus universal programmer is a well designed programmer of high density SMD technology, developed with an easy to use interface. TL866II plus USB programmer support 15000+ic spi flash and EEPROM 8051 MCU pic AVR gal. TL866ii plus programmer is the advanced version of TL866CS and TL866A programmer. The programming speed is much higher (up to double) of high-capacity memories as compared to TL866CS and TL866A programmers. It supports multiprogramming mode (up to four). Well-designed cheap professional programmer, Production of high-density SMD technology, a unified user interface, easy to use, fully functional, reliable program running of application software, ultra-small code -runs faster, supports bilingual (English and Chinese), it can automatically identify the operating system to install and run under win 2000/win XP/win 2003/win 2008/win vista /win7/win8/win10 (32biit/64bit). Key Features: The support simultaneously burns with 4 Programmers on each computer, the minimum volume, and the lowest power consumption, and does not feel any heat in the process. All chips do not need an external power supply, the low power consumption on its own ensures that the USB port can provide enough power. Best internal 40 pins over-voltage protection, the strongest VCC/app 4-level over current protection. The short circuit does not reset the pc. Wide range of chip 15000+ support, support for serial and parallel series 40/44/48pin large capacity flash. Unique serial icsp interface, supporting the serial download and high-speed parallel high voltage programming, test cmos4000 74/54 series integrated circuit, can be located in the gate circuit error, chip auto serial number is the most complete and practical. Original chip encryption operation on AVR microcontroller with internal RC Calibration byte, the decrypt software cannot be directly run on another same type of chip. Also check the HIPG854 Universal Programmer available on the Iotcart website, it is currently sold out. The universal programmer supports a wide range of devices, including ATMEL, AVR, PIC, EPROM, EEPROM, and many more ICs Features: Wide Compatibility: Supports programming for over 14,000 different devices, including EPROMs, EEPROMs, SPI FLASHs, DataFlash, and various microcontrollers. High-Speed Programming: Equipped with a high-performance MCU and USB interface, offering fast programming speeds. ICSP Port: Includes an In-Circuit Serial Programming (ICSP) port, allowing it to replace or eliminate the need for other programmers like Microchip PICkit or Atmel AVRISP. User-Friendly Interface: Designed with an easy-to-use interface, making it accessible for both beginners and professionals. Compact and Portable: Small and lightweight, making it easy to carry and use in various settings. Logic IC Testing: Can test the operation of logic ICs (CMOS and TTL), DRAMs, and SRAMs. Applications: Microcontroller Programming: Used for programming a wide range of microcontrollers from various manufacturers. EPROM and EEPROM Programming: Suitable for programming EPROMs and EEPROMs, which are used in many electronic devices. Flash Memory Programming: Can program SPI FLASH, DataFlash, and other types of flash memory. Logic IC Testing: Capable of testing the operation of logic ICs (CMOS and TTL), DRAMs, and SRAMs. In-Circuit Serial Programming (ICSP): Allows for in-circuit programming of microcontrollers, eliminating the need for separate programmers like Microchip PICkit or Atmel AVRISP. Development and Prototyping: Ideal for use in development and prototyping environments where multiple types of ICs need to be programmed.

CH340G USB to Serial Converter This is CH340G USB To TTL(Serial) Converter, USB to TTL / USB-TTL /STC microcontroller programmer / PL2303 in nine upgrades plate with a transparent cover Compatible with ARDUINO, RASPBERRY PI, AVR, PIC, 8051, etc. This USB–TTL converter is based on CH340G USB to Serial TTL converter chip. The module can be used for 3.3V logic level signals and has the option to switch from 5V to 3.3V logic level using a 2 pin shunt supplied with the module. The CH340 USB to serial adaptor makes use of the CH340 USB to serial IC to provide a low-cost alternative to our popular FTDI-based module. Although much cheaper this module doesn’t lack in features or usability. Note: Once you have installed the drivers the module will appear as a normal serial COM port on your computer making it compatible with most terminal programs and development environments such as the Arduino IDE. The module includes a small switch that allows the voltage available at the VC (Supply output) pin to be switched between 3.3 and 5V. Data pins include TX and RX. These digital pins are at 5V TTL levels allowing them to be directly interfaced with most 5V microcontrollers. What does the CH340G USB to Serial TTL converter support? The USB to serial converter supports WINDOWS 98 / ME / 2000 / XP / Server 2003 / VISTA /Server 2008 / Win7 / Win8 32 Bit / 64. For the purpose of communication, the USB serial converter supports USB1.1 or USB2.0/USB3.0. It also supports RS232, RS485, and RS422 interfaces. The CH340G USB to Serial converter also supports common MODE contact signal and IRDA SIR infrared communication. Applications: Programming USB to UART Converter Debugging Serial Monitor

ATmega16 The ATmega ATmega16 is a low-power CMOS 8-bit microcontroller based on the AVR enhanced RISC architecture. By executing powerful instructions in a single clock cycle, the ATmega16 achieves throughputs approaching 1 MIPS per MHz allowing the system designer to optimize power consumption versus processing speed. Pinout: Pinout of ATmega16 1 PB0(XCK/T0) Pin 0 of  PORTB T0( Timer0 External Counter Input) XCK ( USART External Clock I/O) 2 PB1(T1) Pin 1 of  PORTB T1(Timer1 External Counter Input) 3 PB2(INT2/AIN0) Pin 2 of  PORTB AIN0(Internal Analog Comparator Positive Input) INT2( External Interrupt 2 Input) 4 PB3(OC0/AIN1) Pin 3 of  PORTB AIN1(Internal Analog Comparator Negative Input) OC0 (Timer0 Output Compare Match Output) or  PWM output 5 PB4(SS ) Pin 4 of  PORTB SS (SPI Slave Select Input).  This pin is low when controller acts as slave. [Serial Peripheral Interface (SPI) for programming] 6 PB5(MOSI) Pin 5 of  PORTB MOSI (Master Output Slave Input). When controller acts as slave, the data is received by this pin. [Serial Peripheral Interface (SPI) for programming] 7 PB6(MISO) Pin 6 of  PORTB MISO (Master Input Slave Output). When controller acts as slave, the data is sent to master through this pin. [Serial Peripheral Interface (SPI) for programming] 8 PB7(SCK) Pin 7 of  PORTB SCK (SPI Bus Serial Clock). This is the clock shared between this controller and other system for accurate data transfer. [Serial Peripheral Interface (SPI) for programming] 9 RESET Reset Pin (Active Low Reset) 10 VCC Connected to +5V 11 GND Connected to GROUND 12 XTAL2 Connected to Crystal Oscillator 13 XTAL1 Connected to Crystal Oscillator 14 PD0(RXD) Pin 0 of  PORTD RXD (USART Input Pin) [USART Serial Communication Interface can be used for programming] 15 PD1(TXD) Pin 1 of  PORTD TXD (USART Output Pin) [USART Serial Communication Interface can be used for programming] 16 PD2(INT0) Pin 2 of  PORTD External Interrupt INT0 17 PD3(INT1) Pin 3 of  PORTD External Interrupt INT1 18 PD4(OC1B) Pin 4 of  PORTD OC1B (Timer Output Compare Match Output) or  PWM output 19 PD5(OC1A) Pin 5 of  PORTD OC1A (Timer Output Compare Match Output) or  PWM output 20 PD6(ICP) Pin 6 of  PORTD Timer/Counter1 Input Capture Pin 21 PD7 (OC2) Pin 7 of  PORTD Timer/Counter2 Output Compare Match Output 22 PC0 (SCL) Pin 0 of  PORTC TWI Interface 23 PC1 (SDA) Pin 1 of  PORTC TWI Interface 24 PC2 (TCK) Pin 2 of  PORTC JTAG Interface 25 PC3 (TMS) Pin 3 of  PORTC JTAG Interface 26 PC4 (TDO) Pin 4 of  PORTC JTAG Interface 27 PC5 (TDI) Pin 5 of  PORTC JTAG Interface 28 PC6 (TOSC1) Pin 6 of  PORTC Timer Oscillator Pin 1 29 PC7 (TOSC2) Pin 7 of  PORTC Timer Oscillator Pin 2 30 AVcc Vcc for Internal ADC  Converter 31 GND GROUND 32 AREF Analog Reference Pin for ADC 33 PA7 (ADC7) Pin 7 of  PORTA ADC (Analog to Digital Converter) Channel 7 34 PA6 (ADC6) Pin 6 of  PORTA ADC (Analog to Digital Converter) Channel 6 35 PA5 (ADC5) Pin 5 of  PORTA ADC (Analog to Digital Converter) Channel 5 36 PA4 (ADC4) Pin 4 of  PORTA ADC (Analog to Digital Converter) Channel 4 37 PA3 (ADC3) Pin 3 of  PORTA ADC (Analog to Digital Converter) Channel 3 38 PA2 (ADC2) Pin 2 of  PORTA ADC (Analog to Digital Converter) Channel 2 39 PA1 (ADC1) Pin 1 of  PORTA ADC (Analog to Digital Converter) Channel 1 40 PA0 (ADC0) Pin 0 of  PORTA ADC (Analog to Digital Converter) Channel 0 Applications: Hobbyists applications Engineers design Temperature control systems Analog signal measuring and manipulations. Embedded systems like coffee machine, vending machine. Motor control systems. Digital signal processing. Peripheral Interface system.

SmartElex ATmega32 Development Board – AVR Microcontroller with Onboard USB Programmer The SmartElex ATmega32 Development Board is a reliable and easy-to-use platform designed to help you explore and experiment with the powerful AVR ATmega32 microcontroller. It comes with an onboard USB programmer, power supply circuit, and serial communication support — making it perfect for students, hobbyists, and engineers working on embedded systems or microcontroller projects. With its clear pin labeling, onboard LEDs, switches, and LCD connector, this board simplifies learning and prototyping. Built around the ATmega32 8-bit AVR architecture, the board delivers efficient performance and low power consumption, ideal for a wide range of applications like automation, robotics, and electronic prototyping. It can be powered via a DC plug-in jack or USB, and its onboard 5V regulator ensures stable operation. Whether you’re a beginner learning embedded programming or a professional developing real-time systems, this development board provides everything you need in one compact setup. Pinout Diagram: Features: Designed for ATmega32 8-bit AVR microcontroller (40-pin DIP package). Includes onboard USB to Serial (CH340) and Micro USB USBASP programmer. Built-in 5V voltage regulator (78M05) with power ON/OFF switch. Features 12 MHz crystal oscillator for stable performance. Onboard LED indicators and user switches for testing and debugging. 16x2 LCD connector for display interfacing. Port extensions with detailed pin labeling for easy access. 12V, 5V, and GND bus lines for connecting external peripherals.

Key Display For AVR Arduino The TM1638 Button Digital LED Display Module is used in chip TM1638, a collection of these three common MCU peripheral circuit, the biggest feature just takes three microcontroller like Arduino IO port to drive, do not need to scan display and key scanning microcontroller intervention, only need to read the relevant register send display data or test button, save MCU resources. This module gathers more than three common scm peripheral circuits. The advantage is only three io ports will be occupied when it drives. Scm doesn't need to work for scanning display and key scanning. It only need to read the relevant register to send display data or test button so it save MCU resources effectively. Keys are sensitive and display effectively. Features: TM1638 digital tube drive chip to drive a common cathode LED digital tube. Can be extended to 3 * 8 buttons, led digital tube and can be controlled separately. Support 8 brightness control, led digital tube and use the same brightness. Support cascading up to 6 of the same module. 8 LED, 8-bit digital tube and 8 buttons, common cathode LED digital tube, such as STC microcontroller can be directly connected. Applications: DIY Electronics Projects: Ideal for hobbyists creating custom electronics projects that require a display and user input. Arduino and AVR Projects: Frequently used in projects involving Arduino and AVR microcontrollers for displaying numerical data and receiving user input. Home Automation Systems: This can be integrated into home automation systems to display status information and receive commands. Consumer Electronics: Used in the front panels of devices like DVD players and home theater systems for display and control purposes. Educational Tools: Useful in educational settings for teaching students about microcontroller programming and interfacing. Prototyping: Handy for prototyping new devices that need a simple interface for testing and development.

8051 Development Board (Made in India) The 8051 Development Board is equipped with an Atmel AT89S52 Microcontroller IC and an RS232 chip. It features a DIP 40 Pin IC Socket for easy insertion and removal of chips, and can support a range of chips including AT89S51, AT89S52, P89V51RD2, and 8052. The board is built with a high-quality FR-4 (1.6 mm) PCB. In addition, the board has an on-board RS232 circuit that enables easy communication with a PC and other RS232 serial devices such as GPS modules, GSM modems, and RFID. It also has an extra Vcc bus (5V and 12V) and GND bus for power supply to external peripherals. The 8051 board has an on-board bridge rectifier, allowing it to accept both AC and DC input voltages for power supply. It is also equipped with a 5mm Power Plug-in DC Jack, a Power ON-OFF switch, a 5V regulator (LM7805) circuit, and a power indication RED LED. Other features of the board include an on-board reset button, a quartz crystal 11.05892 MHz, a GREEN USER LED at Pin P2.0, an input user switch Pin P3.3, and an input external interrupt switch (INT1) at P3.3 through jumper JP2. Port extensions are provided for all PORT with detailed labeling for easy identification of pins, and external pull-up resistors are included for port use. The development board also has an on-board ISP connector for loading HEX files into microcontrollers such as AT89S51/52. It has four 3mm mounting holes for easy mounting. read more : How to Choose a Microcontroller Applications Embedded Systems Robotics Internet of Things (IoT) Industrial Automation

The Atmel® AVR® ATmega128 is a low-power CMOS 8-bit microcontroller based on the AVR enhanced RISC architecture. By executing powerful instructions in a single clock cycle, the  ATmega128 achieves throughputs approaching 1MIPS per MHz allowing the system designer to optimize power consumption versus processing speed. Peripheral Features Programmable I/O Lines 53 Programmable I/O Lines Timers Two 8-bit Timer/Counters and Two Expanded 16-bit Timer/Counters with Separate Prescalers and Compare Modes ADC 8-channel, 10-bit ADC Serial Interface 2 Programmable Serial USARTs Master / Slave Interface SPI Serial Interface PWM Two 8-bit PWM Channels and 6 PWM Channels with Programmable Resolution from 2 to 16 Bits Watch Dog Timer Programmable Watch Dog Timer With on chip Oscillator Power Supply Type DC Operating Voltage 2.7V - 5.5V Special Features Internal Oscillator Internal Calibrated Oscillator External Oscillator Up to 16 MHz Interrupt Source External and Internal Clock Frequency Setting Adjustable through Software

ATmega162 The ATmega162 is a low-power CMOS 8-bit microcontroller based on the AVR-enhanced RISC architecture. By executing powerful instructions in a single clock cycle, the ATmega achieves throughputs approaching 1 MIPS per MHz allowing the system designer to optimize power consumption versus processing speed. The AVR core combines a rich instruction set with 32 general-purpose working registers. All 32 registers are directly connected to the Arithmetic Logic Unit (ALU), allowing two independent registers to be accessed in one single instruction executed in one clock cycle. The resulting architecture is more code efficient while achieving throughputs up to ten times faster than conventional CISC microcontrollers. In order to maximize performance and parallelism, the AVR uses a Harvard architecture – with separate memories and buses for program and data. While one instruction is being executed, the next instruction is pre-fetched from the program memory. Program flow is provided by conditional and unconditional jump and call instructions, able to directly address the whole address space. Most AVR instructions have a single 16-bit word format. Every program memory address contains a 16- or 32-bit instruction. Pinout: Pinout Of ATmega162 Applications: Industrial Automation Automotive Applications Medical Devices Consumer Electronics Internet of Things (IoT)

The Iotcart 8051 Development Board is a versatile and beginner-friendly platform designed for learning and prototyping with the classic 8051 microcontroller architecture. Ideal for students, educators, and embedded systems engineers, this board supports a wide range of 8051-compatible MCUs and offers easy interfacing with sensors, displays, and actuators. It features on-board power regulation, crystal oscillator, reset circuitry, and ISP (In-System Programming) support for seamless code development and debugging. Compatible with popular development tools like Keil C and Proteus, this board enables simulation and real-time testing of embedded applications. Whether you're building automation systems, robotics, or IoT edge devices, the 8051 Development Board provides a reliable foundation for hands-on learning and rapid prototyping. Its compact design and breadboard-friendly layout make it perfect for both lab experiments and field deployments. Backed by Iotcart's commitment to quality and support, this development board ensures genuine components and secure checkout. With fast shipping across India and GST-compliant pricing, it’s the preferred choice for academic institutions, hobbyists, and OEM procurement teams seeking cost-effective embedded solutions.

ATmega328P-U PDIP-28 8 BIT Microcontroller IC The Atmel ATmega328 IC is a 32K 8-bit microcontroller based on the AVR architecture. Many instructions are executed in a single clock cycle providing a throughput of almost 20 MIPS at 20MHz. The ATMEGA328P-U comes in an PDIP 28 pin package and is suitable for use on our 28 pin AVR Development Board . The ATmega328P-U AVR is supported with a full suite of program and system development tools including C Compilers, Macro Assemblers, Program Debugger/Simulators, In-Circuit Emulators, and Evaluation Kits. Applications: Industrial control systems Switched-mode power supply (SMPS) and power regulation systems Digital data processing Analog signal measuring and manipulation Embedded systems like coffee machines, vending machines Motor control systems Display units Key Features: Additional Features Features Internal calibrated oscillator Power on reset and programmable brown out detection External and internal interrupts 6 sleep modes including idle, ADC noise reduction, power save, power down, standby, and extended standby I/O and Package 23 programmable I/O lines 28 pin PDIP package Speed Grades: 0-4 MHz at 1.8-5.5V 0-10 MHz at 2.7-5.5V 0-20 MHz at 4.5-5.5V Low power consumption mode at 1.8V, 1 MHz and 25°C: Active Mode: 0.3 mA Power-down Mode: 0.1 ?A Power-save Mode: 0.8 ?A (Including 32 kHz RTC) Pinout:

ATmega168 The Atmel ATmega168 is a low-power CMOS 8-bit microcontroller based on the AVR-enhanced RISC architecture. By executing powerful instructions in a single clock cycle, the ATmega168 achieves throughputs approaching 1 MIPS per MHz allowing the system designer to optimize power consumption versus processing speed. The AVR core combines a rich instruction set with 32 general-purpose working registers. All 32 registers are directly connected to the Arithmetic Logic Unit (ALU), allowing two independent registers to be accessed in one single instruction executed in one clock cycle. The resulting architecture is more code efficient while achieving throughputs up to ten times faster than conventional CISC microcontrollers. Pinout: Pinout of ATmega168 Applications: Multiple DIY projects. Projects requiring more than logical control for devices. Microcontroller applications for multiple device interface/Control.

The high-performance, low-power Atmel 8-bit AVR RISC-based microcontroller combines 32KB of programmable flash memory, 2KB SRAM, 1KB EEPROM, an 8-channel 10-bit A/D converter, and a JTAG interface for on-chip debugging. The device supports a throughput of 16 MIPS at 16 MHz and operates between 4.5-5.5 volts. By executing instructions in a single clock cycle, the device achieves throughputs approaching 1 MIPS per MHz, balancing power consumption and processing speed

Elementz AVR USB Programmer with Cable USB AVR USBISP programmer will allow users to painlessly transfer hex programs to most ATMEL AVR microcontrollers. It is more reliable than most other AVR programmers available. Entire AVR programmer has been built with using common parts and fits in the case of the serial connector. This AVR programmer is compatible with AVRdude GUI software. This can be used to program : AT90S1200,2313,2323,2343,4414,4433,4434,8515,8535, ATMEGA103,128,1280,1281,16,161,162,163,165,168,169, ATMEGA 2560,2561,32,323,325,3250,328,329,3290,406,48,64, ATMEGA 640,644,645,6450,649,6490,8,8515,8535,88, ATTINY 11,12,13,15,22,2323,25,26,261,28,44,45,461,84,85,86, AT90CAN128,32,64, AT90PWM2, CAPABLE OF PROGRAMMING BOTH 3.3V & 5V AVR MICROCONTROLLERS read more : Implementation of PWM in AVR