ATMega8 Programming Development Board with L293D IC

An ATmega8 Programming Development Board with L293D is a compact embedded systems board designed for learning and prototyping with the ATmega8 microcontroller and L293D motor driver IC.

It’s great for beginners working on motor control, robotics, and basic embedded system projects.

Key Components on the Board:

ATmega8 Microcontroller:

• 8-bit AVR RISC-based microcontroller
• 8KB Flash, 1KB SRAM, 512B EEPROM
• 23 I/O lines, 6-channel 10-bit ADC, UART, SPI, I²C
• Typically operates at 16 MHz with an external crystal

L293D Motor Driver IC:

• Dual H-Bridge motor driver
• Can control 2 DC motors or 1 stepper motor
• Max current: ~600mA per channel
• Voltage range: 4.5V – 36V

Other Features (varies by board):

• 5V voltage regulator (7805 or similar)
• Power input terminal (DC jack or screw terminals)
• Reset button
• Programming headers (ISP, possibly UART)
• Onboard LEDs (power, status)
• Motor terminal blocks or headers
• Crystal oscillator (usually 16 MHz)

Projects:

• DC motor or robot car control
• Line-following robot
• Stepper motor control
• Learning microcontroller programming with AVR-GCC or Arduino

Programming Options:

• AVR ISP (In-System Programming): Using USBasp, USBtinyISP, or similar
• Bootloader (optional): If bootloader is flashed, you can use USB-to-Serial modules
• Arduino IDE Support: You can program ATmega8 with Arduino IDE by selecting the correct board and writing code like for an Uno (with some tweaks)

Sample Motor Control Code (using raw AVR or Arduino-like):

// Assume motor connected to L293D on PB0 and PB1
void setup() {
  DDRB |= (1 << PB0) | (1 << PB1);  // Set pins as output
}

void loop() {
  // Rotate motor forward
  PORTB |= (1 << PB0);
  PORTB &= ~(1 << PB1);
  delay(1000);

  // Rotate motor reverse
  PORTB &= ~(1 << PB0);
  PORTB |= (1 << PB1);
  delay(1000);
}

Brand: Entrench Electronics

Origin:- India