U E Z G U I - 1 7 8 8 - 7 0 W V M
U s e r ’ s M a n u a l
P a g e
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21
3/20/2024
Copyright ©2024, Future Designs, Inc
Revision 5
J15 PMOD Type 2A Connector (Revision 2.0+ only)
The UEZGUI-1788-70WVM-BA includes a PMOD Type 2A (SPI) connection to an expansion board.
Pin Number
Description
Pin Number
Description
1
SPI Chip Select
7
Interrupt Request
2
SPI MOSI
8
Reset
3
SPI MISO
9
Optional I2C SCL
4
SPI Clock
10
Optional I2C SDA
5
Ground
11
Ground
6
3.3V
12
3.3V
P1
–
USB mini-AB port
The UEZGUI-1788-70VVM has a mini-AB USB connector for host or device mode. By using a USB OTG adapter
(with a mini-A plug) it will short the ID pin 4 to ground. This can be used for host mode detection in the
application.
Pin Number
Description
1
5V
2
D-
3
D+
4
ID
5
Ground
P2
–
USB Power Input 5VDC
The UEZGUI-1788-70WVM is normally powered via P2 with the included 5V USB Wall Supply. This power
supply is only included in the development kit and is not included with the UEZGUI-1788-70WVM-BA. Note
that the other USB connector (P1) is for communications only and will not supply power to the unit. Also
note that the minimum power requirement is 1.0A so most USB power sources, which are limited to 500mA
max, will not adequately power this unit.
Pin Number
Description
1
5V
2
No Connect
3
No Connect
4
Ground
J4 & J5 - Expansion Connectors
The UEZGUI-1788-70WVM-BA includes two expansion connectors that provide a wide variety of capabilities
for user expansion, ranging from 10/100 Ethernet to USB Host, etc.
Please note:
When using I/O signals on
the µEZ GUI Expansion Connectors (J4 & J5) to connect via the customers Expansion Board to external
connectors or signals, it is the customer’s responsibility to provide adequate ESD protection and filtering to
prevent damage to any pins that are not directly protected on the µEZ GUI.
The tables below provide the pinout and signal names available on these connectors:
