Wireless Add-On Connector
This connector is used to plug in an optional wireless add-on module, such as the WA2000.
The connector has 10 pins, as shown in the diagram below. Apart from the ground and Vcc (3.3V) lines, there are eight I/O lines that are connected directly to port 1 (GPIO lines 8~15) of the EM1206.
Pin |
EM1206 line |
WA2000 line |
#1 |
GND |
GND |
#2 |
VCC (3.3V) |
VCC (3.3V) |
#3 |
GPIO15/P1.7 |
CS |
#4 |
GPIO10/P1.2 |
--- |
#5 |
GPIO13/P1.5 |
DO |
#6 |
GPIO9/P1.1 |
--- |
#7 |
GPIO11/P1.3 |
RST |
#8 |
GPIO8/P1.0 |
--- |
#9 |
GPIO12/P1.4 |
DI |
#10 |
GPIO14/P1.6 |
CLK |
Note that GPIO lines 8~15 can be used for any desired I/O purpose, not just to control a wireless add-on module. You can use this connector for your own control purposes.