User Manual

Page 20
Hexiwear Workstation
mikroBUS
™
sockets
CONNECTIVITY
Easy connectivity and simple confi guration are imperative in the world of modern embedded electronics. For example, the success of the USB standard comes from its simplicity
and high and reliable data transfer rates. This is why our engineers have came up with a brilliant solution for rapid development, in the form of a simple, yet powerful standardized
interface. It contains bus lines, which most of modern devices use, almost completely eliminating the need for any additional hardware confi guration. This standardized connection
interface is called mikroBUS
™
. More about the mikroBUS
™
standard can be found on our offi cial mikroBUS
™
page: www.mikroe.com/mikrobus
Hexiwear Workstation comes equipped with four mikroBUS
™
sockets (Figure 21), expanding the connectivity to a selection of hundreds of diff erent devices, including displays,
buttons, motor drivers, LED drivers, BT radios, GPS, GSM, WiFi, and many more, with new ones produced almost daily. All these devices are neatly packed onto the standardized
PCB that perfectly fi ts in the mikroBUS
™
socket. It is called Click board
™
, because it simply “clicks” into the mikroBUS
™
.
AN
RST
CS
SCK
MISO
MOSI
3.3V
GND
PWM
INT
RX
TX
SCL
SDA
5V
GND
MIKROBUS 1
MIKROBUS HOST CONN
VCC-5VVCC-3V3
G1.3
G1.4
AN
RST
CS
SCK
MISO
MOSI
3.3V
GND
PWM
INT
RX
TX
SCL
SDA
5V
GND
MIKROBUS 2
MIKROBUS HOST CONN
VCC-5VVCC-3V3
AN
RST
CS
SCK
MISO
MOSI
3.3V
GND
PWM
INT
RX
TX
SCL
SDA
5V
GND
MIKROBUS 3
MIKROBUS HOST CONN
VCC-5VVCC-3V3
AN
RST
CS
SCK
MISO
MOSI
3.3V
GND
PWM
INT
RX
TX
SCL
SDA
5V
GND
MIKROBUS 4
MIKROBUS HOST CONN
VCC-5VVCC-3V3
G1.3
G1.4
G1.5
G1.6
G1.5
G1.6
G2.0G2.1
G2.2
G2.5G4.0
G4.1
G4.2
G4.3
G4.4
G4.5
G4.6
G0.1
G0.2
G0.3
G0.4
G0.0
G1.7
G2.3
G2.4
G2.3
G2.4
G2.6
G2.7
G3.0
G2.6
G2.7
G3.0
G2.6
G2.7
G3.0
G2.6
G2.7
G3.0
G3.5
G3.6
G3.7
G3.3
G3.4
G3.3
G3.4
DATA BUS
AN - Analog pin
RST - Reset pin
CS - SPI Chip Select line
SCK - SPI Clock line
MISO - SPI Slave Output line
MOSI - SPI Slave Input line
+3.3V - VCC-3.3V power line
GND - Reference Groundi
PWM - PWM output line
INT - Interrupt line
RX - UART Receive line
TX - UART Transmit line
SCL - I2C Clock line
SDA - I2C Data line
+5V - VCC-5V power line
GND - Reference Ground
Figure 21: mikroBUS
™
sockets with the schematic
Page 20
CONNECTIVITYCONNECTIVITY
Each mikroBUS™ socket consists of two 1x8 female headers containing pins that are most likely to be used on most of the target
devices. There are three groups of communication pins available: SPI, UART and I2C . There are also pins for PWM, Interrupt, Analog
input, Reset and Chip Select, and two power supply rails available: +5V and GND on one side and +3.3V and GND on the other side of the
mikroBUS™ socket.