Moving The Snail Mail To WiFi

[Zak] loves getting a notification on his phone when he gets physical mail. Enough to wire his mailbox slot with an ESP8285 to send him alerts. Previously, [Zak] used a cellular-based solution as t…

Snail Mail Notifier’s Simple Power Management To Maximize Battery Life

There are no weird, specialized components nor esoteric sleep mode tricks behind the long battery life of [Zak]’s WiFi mail slot watcher. Just some sensible design and clever focus on the dev…

For The ESP’s Next ESP Trick…

It is a pretty stale dad joke to tell someone you have ESP when you mean you have an ESP8266 or ESP32 in your hand. However, [Naufil Metkar] uses an ESP device to pretend — via a magic trick …

Avoid WiFi channel 12-13-14 when working with ESP devices

Recently we are experimenting with Home Assistant installed on A20-OLinuXino-LIME2 Home server and attaching different nodes made with our ESP8266/ESP32 boards and noticed odd behaviour os ESP when…