An Overview of AVR ATmega16 Mini Development Board

AVR ATmega16 Development Board(mini) is a miniature and powerful hardware platform to evaluate the Atmel ATMega16 Flash memory microcontroller. The board is designed with a variety of hardware to exercise AVR ATMega16 microcontroller peripherals. Compact size (10.1 cm x 8.5cm) and low cost makes it one of the best in its class. The board is ideal for training and development purposes.

Key Features

Compact and ready to use design
Includes ATmega16 microcontroller with 8MHz Crystal Oscillator
No separate power adapter required(USB power source)
External power supply range of 7V to 12V
Adaptor (any standard 9-12 power supply) option
On board 5V,1A and 3V3 voltage regulator ICs
RS-232 interface (for direct connection to PC’s serial port)
Built in user programmable LEDs (3 no)
On board Reset Switch
On board Buzzer interface
On board power LED indicator
3 on board Pull up keys
On board Temperature sensor
LCD Interface (16×2)
Berg strips available to interface Servo motor
Provision for interfacing Zigbee module
Provision for interfacing RFID module
On board Prototyping area
All Controller pins available at male and female berg strips
RMC connectors available in 5V and 3V3 for USART
On board DB9 and USB Connector
RMC Connector and DC Barrel Jack for external power supply
JTAG Connector for debugging/programming
ISP port-5×2 IDC Connector
Built in potentiometer interface for ADC with variable voltage input
Power supply reverse polarity protection
Can be used as header board for developing applications
High quality two layer PTH PCB
Professional EMI/RFI complaint PCB layout design for noise reduction

AVR ATMega16 Chip Specifications

16 K bytes programmable flash
1 K bytes SRAM
512 bytes EEPROM
16 MHz operation (Up to 16 MIPS)
32 I/O pins
8 channel 10 bit ADC
4 PWM Channels
Two 8-Bit Timer/Counter
One 16-Bit Timer/Counter
One Serial USART
1 Two Wire Serial Interface TWI
SPI Master/ Slave
Power Consumption ~ 14 mA
Operating voltage
- 2.7 to 5.5V for ATmega16(L)
- 4.5 to 5.5V for ATmega16

The following figures illustrate the peripheral features of the board

J1,J2 – To select serial port/USB port for USART communication
J11(Power jumper) – To select power source as USB/DC source
Power LED – Glows when the board is powered
SWITCHES – On-board switches
LEDs – On-board SMD LEDs
SW4 – Reset switch

K16 – Connector for using USART in 3.3V level
LCD – Berg strip connector for LCD
K10 – Connector for using UART in 5V level
K11 – Connector for interfacing servo motor
AREF – Jumper to select AREF as 3.3V/5V
J4,J5,J6 – Jumpers connecting LEDs to port pins PC0, PC1 & PC2
J3 – Connects potentiometer to PA0(ADC0)
J10 – Connects temperature sensor to PA1(ADC1)
J7,J8,J9 – Jumpers connecting switches to port pins PD2, PD3 & PD4
J12 – Jumper connecting buzzer to port pin PC7
J13 – Jumper connecting RX of controller to DOUT of Zigbee
J14 – Jumper connecting TX of controller to DIN of Zigbee

Layout

How to test?

Step 1: Launch AVR Studio (click here to download )

Step 2: Click New Project to create a new project

Step 3: Under Project Type, select AVR GCC Compiler for C program(shown encircled in green).Select Create Initial file (encircled in red) option

Step 4: Give project name, file name and select location to save your project and click Next>>

Step 5: From the Device list, select the device (ATmega16) to be programmed and click ‘Finish‘

Step 6: When the editor window opens, add the c file by right click over the Source Files >Add Existing Source Files as shown below

Step 7: Enter the code and Save your file by File > Save, keyboard shortcut Ctrl + S or using Save icon

Step 8: Build the projectAnd you can view the Build window as shown below if successfully build.

Now the code can be flashed to the controller.
In the board, do the following jumper connections

Select the power source as USB cable or DC source using jumper J11
Select USB or serial port using jumpers J1 & J2 for flashing the code

Now power up the board. The power LED(red LED on the board) glows.

Step 9: Select Tools > AVR Prog , simultaneously press reset switch on the mini development board
Step 10: Select the desired hex file and click Program (encircled in red under Flash) to load the program to the device. After successfully flashing the code, use controller for the desired purpose.