Atmel AVR development Atmega32 kit (Eta32mini)

Description

Atmel AVR development Atmega32 kit (Eta32mini) The Eta32mini is a compact AVR development platform tailored for students, beginners and recent engineering graduates, streamlining the creation and testing of ATmega32-based microcontroller projects. By integrating the core peripherals such as a 2×16 character LCD, a 4×4 matrix keypad, serial interface and a CH340-based USB virtual COM port the board removes the burdensome task of discrete hardware design and allows developers to concentrate purely on firmware. All microcontroller I/O lines are exposed via convenient pin headers for direct access, and the on-board power section accepts 12–20 V DC, producing a regulated 5 V supply with reverse-polarity and over-current protection. Pre-flashed with a UART bootloader, the Eta32mini supports programming through its custom IDE or, if preferred, the Arduino environment; an ICSP header also permits use of external AVR programmers. Safety and reliability are enhanced by features such as a reset switch, crystal oscillator, multi-turn analog input potentiometer and on-board fuse. Whether you’re learning to interface displays and keypads, experimenting with relay and buzzer control, or exploring serial communications, the Eta32mini offers a ready-to-use, all-in-one solution that accelerates development cycles and builds a solid foundation in embedded systems. Features: Power supply unit with on/off switch, 7805 regulator and 1 A fuse. ATmega32 microcontroller (44-pin TQFP) with reset switch and 16 MHz crystal. 4×4 matrix keypad (configurable as four direct switches). Output unit: three LEDs, two relays (5 V coil, 5 A contacts) and one buzzer. Multiplexed two-digit 7-segment display. 2×16 character LCD with contrast control. Variable analog input via high-precision multi-turn resistor. USB virtual COM port (CH340). Standard 6-pin ICSP header for external programming. All MCU I/O pins accessible via pin headers. Eta32mini Kit Schematic: Specifications: Specification Details Microcontroller: ATmega32A, 44-pin TQFP package, 16 MHz crystal oscillator Operating Voltage: 5 V regulated output (7805, ±5%), input 12–20 V DC via socket Protection: 1 A fuse, reverse-polarity protection; green LED power indicator USB Interface: CH340 USB-to-TTL converter providing a virtual COM port; switch-selectable Programming: On-board UART bootloader (Eta32mini IDE), Arduino IDE compatible; 6-pin ICSP header for external programmers Display: 2×16 character LCD in 4-bit mode (contrast via 10 KΩ potentiometer) Keypad: 4×4 matrix keypad (or 4 direct switches) with pull-up resistors; jumper-selectable mode 7-Segment: Dual-digit, common-cathode multiplexed display via PORTA & Port B Analog Input: Multi-turn 10 KΩ potentiometer (0–5 V) on PA0/A0 Output Units: Three LEDs (PC0–PC2), two relays (PC3–PC4), one buzzer on PC5 Applications: Relay Control Application. LED Control (Red, Green, Blue). 7-Segment Display Counter. Analog Voltage Measurement on LCD. Serial Communication Display on LCD. Package Contents: 1x ETA32 mini Mainboard 1x USBasp AVR Programmer 1x Cables Datasheet: Download User Manual ( Download ) Firmware (Download) Software (Download)

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