Data Sheet
VMA502
V. 01 – 28/11/2016 4 ©Velleman nv
1
USB interface
7
Atmel mega2560
2
ICSP for 16U2
8
reset button
3
digital I/O
9
digital I/O
4
Atmel mega16U2
10
7-12 VDC power input
5
ICSP for mega2560
11
power and ground pins
6
16 MHz clock
12
analogue input pins
microcontroller ................................................................................................ ATmega2560
operating voltage ....................................................................................................... 5 VDC
input voltage (recommended) ................................................................................ 7-12 VDC
input voltage (limits) ............................................................................................. 6-20 VDC
digital I/O pins .............................................................. 54 (of which 15 provide PWM output)
analogue input pins ......................................................................................................... 16
DC current per I/O pin ............................................................................................... 40 mA
DC current for 3.3 V pin ............................................................................................. 50 mA
flash memory ........................................................... 256 kB of which 8 kB used by bootloader
SRAM ........................................................................................................................ 8 kB
EEPROM...................................................................................................................... 4 kB
clock speed ............................................................................................................. 16 MHz
dimensions
length ............................................................................................................... 112 mm
width ................................................................................................................. 55 mm
weight ................................................................................................................... 62 g
7. Operation
7.1 The Breadboard
Breadboards are one of the most fundamental pieces when learning how to build circuits. In this tutorial, we
will introduce you to what breadboards are and how they work.
Let us look at a larger, more typical breadboard. Aside from the horizontal rows, breadboards have what are
called power rails that run vertically along the sides.
Power rails.