photo sensitive

Hi, I am working on a problem with detecting a reflected IR signal. I have a TX IR LED that sends light at 32 kHz frequency. If something is in front of the diode (reflectimg surface), some light bounces back. Next to the TX LED, I have an RX LED to catch this bounced light. I want to catch this...

Hi all. My boss (wife) bought some outside fairy lights. Unfortunately she didn't consider switching these lights on and off. The 240v socket is behind some very heavy furniture and therefore very difficult to access. I'm looking to build a simple circuit to ensure that these lights only come on...