Can I find out who sent the text message sent by the timer?

No. The text messages sent by the scheduled master are sent from virtual mobile phone numbers, so the text messages sent by the scheduled master cannot be found out who sent them. Scheduler is a scheduled task software on the Android platform that supports scheduled execution of many practical functions such as airplane mode, simulated gestures, making calls, sending text messages, taking photos, recording, shutting down, restarting, and releasing memory.