Living out in the middle of nowhere, I have problems getting fast internet, so I have a big antenna on my roof (see picture). The connection is borderline so it seems to help if I recycle power on my radio/antenna. Being a Lazy Old Geek, it is not convenient to unplug and re-plug the power connector.
Often, I am reclining on my bed with my laptop, (see easylaptopstand
), so I decided to build a remote access power resetter (see first picture) with an Arduino clone. I can aim my laser pointer at the resetter and it will automatically cycle the power on the radio/antenna.
Phototransistor: Digikey SFH310 $ 0.38
Relay: Digikey Z146-ND (G2RL-24DC5) $3.22
LED book lamp: Dollar store
Laser pointer: Dollar store
Anarduino (Arduino clone): Ebay $18.90 for 2
USB-BUB: seems to be cheaper at Wulfden $16