The Parallax Control Processor device is accessible by hardwired ethernet, or by its on-board access point.
The access point default SSID is: CM4-<macAddress>
Default password: <serialNumber>
Once connected to the AP, open a terminal window and ssh into the device:
ssh pi@<ipAddress>
ssh pi@cm4-<macAddress>.local
Note: if you receive a connection warning, you may need to delete/modify your known hosts file on your computers hidden .ssh folder.
WIRELESS ACCESS POINT : The on-board access point contains a router with DHCP server. The controller is set to hand out DHCP addresses to devices connecting via the onboard access point, such as your laptop or a wireless touch panel. These devices will be given an address on the 192.168.10.0 subnet by default.
Wireless touch panels: When a wireless control panel is connected to the on-board access point, it will receive an IP addres in the 192.168.10.100-192.168.10.253 range. The touch-panel will then be able to communicate with devices on the eth1 control subnet.
Managing Device from Access Point: You may connect directly to the on-board AP to load code and manage the device the same as if you set up a wired network. This is very convenient for programmers as they can update projects wirelessly from their laptop without having to break out any dongles, adapters or usb cables. Note that you will not have internet access when connected to the AP which is bridged to the control subnet.
Firewall Traffic: The control subnet is by default set to isolation mode. Devices on the eth1 control subnet can only communicate back to wlan0 for responses and cannot initiate new outbound connections. Since eth1 is isolated, wlan0 will not reach the internet.
Do NOT connect eth1 to eth0 with a patch cord! This could cause routing conflicts and loops.
Once you are connected, open web browser and head to the devices login page.
