©2012 by e-Gizmo Mechatronix Central
Page 4 of 16 pages
EZ HMI Display Terminal
7.5-9.0V DC
DC INPUT
HOST CONTROLLER (MICROCONTROLLER)
with 5V Supply Voltage
TXD
+5V
RXD
GND
GND
JUMPER INSTALLED
ON JP1 5V POSITION
+5V
SOURCE
7.5-9.0V DC
DC INPUT
HOST CONTROLLER (MICROCONTROLLER)
with 5V Supply Voltage drawn from EZ HMI
TXD
RXD
GND
JUMPER INSTALLED
ON JP1 5V POSITION
+5VINPUT
WIRING CONFIGURATIONS
Important:
"a./+"3+2L:;0"9-0;"21;"+c<++K"Q"C+;+/
.
Figure 6. UART wiring interface with a 5V logic microcontroller host
with separate power source.
Figure 7. The EZ HMI +5V, when routed through UART V+ by installing a
jumper at JP1 +5V position, can be used to power UART connected device,
such as the host MCU, or even wireless UART devices.
