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piscesweilun.studio@gmail.comFrequently Asked Questions
What is PJLink?
PJLink is a standard protocol for controlling projectors over a network. Most modern projectors from manufacturers like Epson, Panasonic, NEC, and Sony support PJLink Class 1. HandyPJC uses this protocol to communicate with your projectors.
My projector is not found during network scan
Make sure your iPhone/iPad and the projector are connected to the same Wi-Fi network. Also verify that PJLink is enabled in your projector's network settings. Some projectors require you to enable "PJLink" or "Network Control" in the settings menu.
I get an "Authentication Failed" error
Your projector requires a PJLink password. HandyPJC tries common default passwords automatically, but if your projector uses a custom password, you'll need to enter it manually. Go to the projector's edit screen and set the correct password.
Can I control projectors remotely (outside my network)?
HandyPJC communicates directly with projectors over your local area network. Controlling projectors from outside your network requires VPN access to the same network where your projectors are connected.
How do I delete all my data?
Simply uninstall the App from your device. All local data and Keychain entries will be removed. If iCloud sync is enabled, you can also clear iCloud data from Settings > [Your Name] > iCloud > Manage Storage.
How do I remove ads?
You can purchase "HandyPJC Pro" from the Settings menu. This one-time purchase removes all advertisements, unlocks unlimited projectors, and enables group management features.
System Requirements
- iOS 17.0 or later
- iPhone or iPad
- Wi-Fi connection on the same network as your projectors
- Projectors with PJLink Class 1 support