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Tag: delay

February 12, 2018

Sonoff Smart WiFi Switches Tasmota External Sensor 5V PIR Mod

Following on from this guide about flashing the Sonoff ESP8266 based wifi switches with custom firmware (Tasmota), this guide deals with how to use them with external sensors on one of the free GPIO pins as a secondary trigger. I wanted to use a PIR to create a motion sensor. The sensor I used was a HC-SR501, a cheap and...

Categories Home Automation Comments: 0
March 9, 2007

Electronic Delay Latch

The Background A while ago, I built a PC and used an All-in-Wonder Radeon 9700 Pro graphics card. For those who aren’t too familiar with them, read here. They were one of the first cards to require an external power connector to provide extra juice that couldn’t be drawn from the AGP bus. Coupled with this card, I used an...

Categories Computers/Guides/Misc Comments: 0