Getting the Key Croc Online

The Key Croc features an onboard WiFi module for connecting to nearby 2.4GHz networks. To configure WiFi, edit the config.txt file on the root of the Key Croc flash disk from Arming Mode.

The two WiFi parameters are:

  • WIFI_SSID – the network name

  • WIFI_PASS – the WPA-PSK password

Any characters after these key words will be used as the values.

Protected Network


WIFI_SSID MyTargetNetwork
WIFI_PASS I'm not telling you.

Some special characters interpreted by bash may need to be escaped.

Open Networks

For open networks which do not require a password, omit the WIFI_PASS option.

Resetting Wireless Configuration

To disconnect the Key Croc from a network, remove the WIFI_SSID and WIFI_PASS options, then restart the device.

Overriding DNS

By default the Key Croc is configured to attempt to obtain an IP address from a network's DHCP server. Configuring a static IP address is outside the scope of this guide, however considering its Debian base this can be achieved in a number of ways.

The DNS server may be overridden from that obtained via DHCP by using the DNS option in config.txt, in the format:

DNS x.x.x.x x.x.x.x

To determine the IP address obtained by the Key Croc for development purposes, see the guide on Interactive Payload Development from the Tips section of this documentation.

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