Setup Wifi when no Ethernet Connection is available:
- Create a new RemoteTx SD Card using Etcher as outlined in the Start Up instructions:
- Put the new SD Card in the Raspberry Pi and boot it by applying power. Let it run for at least 2 minutes.
This allows the RTx image to expand to the size of the SD Card you have chosen.
- After the the Pi has been running for 2 minutes unplug the power and put the SD Card back in your computer.
(The green light should only be flickering occationally.)
It is important that the file of step #6 is not copied until after this first initial boot has been done.
- Copy your ‘remotetx.conf’ license file to the /boot folder of the SD Card.
- Create a new file with ‘Notepad‘ or a text editor and name it exactly ‘wpa_supplicant.conf’ (without the quotes). Copy the text lines from #6 below into it and save it to the /boot folder of the SD Card. (Make sure the file ends in .conf not .txt)
- Contents of ‘wpa_supplicant.conf’: (You can also download it in a zip file at: wpa_supplicant.conf.zip)
- Replace NETWORK_NAME and NETWORK_PASSWORD with your wifi credentials and save to /boot.
- Put the SD Card back in the Pi and power it up to boot it.
- After a minute or two the RemoteTx Pi should attached to your wifi network and will be reachable at:
- Steps 5-8 can be repeated any time you want to setup wifi without using the RemoteTx web interface. It is not necessary to start with a new SD card. All wifi settings will be replaced with the new file.
Disable onboard wifi to use external USB wifi interface:
- Put the Pi SD Card in a PC or Mac.
- Open the ‘config.txt’ file in the /boot folder of SD Card.
- Add to bottom of file:
- Save and put the SD Card back in the Pi and boot it.
- You can now plug in a USB wifi adapter that is supported by Raspian and it will be active instead of the on board Pi wifi. This is useful when the Pi is a great distance from the wifi access point and needs to have a stronger signal from a more powerful USB wifi adapter.