VMA105
V. 01 – 28/06/2018
3
©Velleman nv
5.
Overview
VMA105
This wearable development board can be used on textiles as well as sensors, actuators and similarly mounted
power supplies.
microcontroller: ATmega32U4
operating voltage: 2.7 to 5.5 V DC
input voltage: 2.7 to 5.5 V DC
digital I/O pins: 9
PWM channels: 4
analogue input channels: 4
DC current per I/O pin: 40 mA
flash memory: 32 kB (of which 4 kB used by bootloader)
SRAM: 2.5 kB
EEPROM: 1 kB
clock speed: 8 MHz
dimensions: diameter 50 mm
6.
Important Remark
The VMA105 module requires a power supply of 3.3 V. However, as the VMA105 contains a 3.3 V regulator it
can be connected by using the 5 V micro USB.
The I/O pins of the VMA105 communicate
with 3.3 V only as they do not tolerate 5 V
. If interfacing with
5 V I/O pins is needed, we recommend using our VMA410 level shifter.
7.
Pin Layout