<https://protostack.com.au/shop/boards/microcontroller-boards/atmega168a-atmega168-development-kit/#product>
<http://schema.org/description>
"The ATmega168A Development Kit is our bestselling kit. It contains everything you need for a basic Atmega168a circuit and the 28 pin AVR development board is really quite amazing (well we think so :-) ).\r\nThe board measures 127 x 94mm (5\" x 3.7\"), is made of 1.6mm FR4 and has clean routed edges. It has 6 mounting holes and conforms to the large-size protostack form factor. This allows it to be stacked with other large, medium and small protostack boards.\r\nThe copper (top and bottom) has a thickness of 1oz per sqr foot and the GND and VCC power rails have a width of 50mil (top) and 60mil (bottom). This allows plenty of current to get through with very little track heating. The power rails are routed right throughout the board, making it easier to add your own circuits. The solder pads are quite large and are treated with lead free HASL, making it easy to solder components in place. All holes are through plated.\r\nOn the left hand side (holding it so the power supply is top left) you will find:\r\n\r\nThe power connector (many options to choose from)\r\nReset switch\r\n10 pin ISP connector\r\nDual row area\r\n\r\nThe board has been designed so each of these components sit flush with the edge of the board. This allows for easy access, especially when dealing with a board stack.\r\nThe power supply area is extremely flexible. For instance you can:\r\n\r\nUse a wide variety of connectors. We discuss 3 in the User's Guide but there are plenty more\r\nYou can bring unregulated power to the board then regulate it down, or just bring regulated power to the board,\r\nYou can power the microcontroller with anything from 2.7 to 5.5 Volts,\r\nYou can use IGO (eg L7805) or GOI (eg LD1117) style voltage regulators,\r\nYou can optionally put a diode in to protect against reverse polarity,\r\nYou can optionally add a PPTC resettable fuse to protect your circuit,\r\nYou can optionally include an power LED,\r\nYou have quite a bit of freedom with capacitor selection,\r\nYou can optionally solder a CR2032 battery holder onto the board, and\r\nYou can optionally power the board through a USB programmer and the ISP connector (6 or 10 pin).\r\n\r\nThe User's Guide covers all these options in section 4.6.\r\nThe board has a large prototyping section on the right hand side. In fact it covers just under half the board area. The prototyping area has a breadboard style layout and as noted above, the power rail are routed throughout this area.\r\nAside from the board, the kit also contains the microcontroller, the power supply parts and a range of other components needed to create a basic AVR circuit. Being a through-hole kit it is easy enough for a beginner to use, and the User's Guide has detailed instructions.\r\nWhilst many AVR programmers will work with this board, we recommend the USBASP AVR Programmer.\r\nIncluded in each Kit \r\n\r\nPart NumberDescriptionQuantity\r\nPB-MC-AVR2828 Pin AVR Development Board1\r\nCN-IC-2803IC Socket 28 pin 7.62mm (0.3\")1\r\nIC-ATMEGA168A-PUATMEGA168A-PU Atmel 8 Bit 16K AVR Microcontroller1\r\nPA-RY-MFQ1KResistor - Metal Film 1/4W - 1K1\r\nLE-5M-YELED General Purpose 5mm Yellow1\r\nCN-DC-21MDC Jack 2.1 x 5.5mm1\r\nSC-DI-1N40041N4004 General purpose 1A Rectifier Diode1\r\nSC-VR-L7805L7805 +5V Linear Voltage Regulator1\r\nPA-PTC-500PPTC Resettable Fuse - 72V, 500mA (RXEF050)1\r\nPA-CA-EL47UCapacitor - Electrolytic  25V 47 uF1\r\nPA-CA-EL100UCapacitor - Electrolytic  25V 100 uF1\r\nCN-ID-MR10IDC Male connector (shrouded header), 10 pin, right angle leads1\r\nPA-RY-MFQ10KResistor - Metal Film 1/4W - 10K1\r\nSW-TM-SPSTMicro Tactile momentary SPST switch1\r\nPA-CY-20M20MHz Crystal in HC/49S through hole package1\r\nPA-CA-CA22P22pF 100V Resin Dipped Ceramic Axial Capacitor2\r\nPA-CA-CR100NCapacitor - Resin Dipped Ceramic 50V 100nF3\r\nPA-IN-AX10UInductor (Choke) - 10μH, Axial leaded1"
<https://protostack.com.au/shop/boards/microcontroller-boards/atmega168a-atmega168-development-kit/>