16. If using the GPIO, connect up the cable:
Note that the you should connect the following pins only:
a. Ground
b. TxD
c. RxD
d. GPIO 23
e. GPIO 24
Note also that the ground is connected to a different pin than that which is used
with a direct connection between a Pi Zero and the Einsy.
- 22 -
c
a
e
d
b