Ethernet port does not exist on Raspberry Pi Model A. And when you got no monitor screen to connect to, configuring your headless Pi may not be possible.
Your only option would be to connect to your Pi from a laptop via a console cable.
For this exercise you are not going to need the MicroUSB power adapter as the power will be supplied from the console cable. However you will still need your SD Card with Raspbian or other OS installed.
A typical console lead would have one USB on one end, and 4 wires on the other end.
These four wires includes: 5V (red), ground (black), logic in (white), and logic out (green). Please make sure the logic wires have 3.3v switch, compatible with GPIO pins.
Wire connectivity to your Raspberry Pi Model A or Model B GPIO pins should be as follows:
- The red lead to 5V
- The black lead to GND
- The white lead to GPIO 14 TXD
- The green lead to GPIO 15 RXD
USB end goes into your USB port in your laptop.
Install screen on your Linux laptop:
sudo apt-get install screen
Connect to your pi this way:
sudo screen /dev/ttyUSB0 115200
Once you see a login screen, enter username and password, and start configuring your Pi.
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