Day 24: Fire alarm for the Christmas tree

Thu, 24 Dec 2015 00:01:19 +0100

The final project consists of several elements you have been introduced to in the course of the advent time. One function is the Cheerlights function presented the day before. You can also receive the current colour of the Cheerlights project and display it with the RGB-LED. The board is also used for long-term monitoring of the temperature. At the same time, the board is used to emit an alarm sound when the temperature exceeds a specific value, e.g. because there is a fire. As a last function, the board can be used as a Christmas bell, by making it play the song Jingle Bells with a time-controlled TalkBack command. All in all, today’s project is an all-rounder for the Christmas tree.

Day 7: Analogous sensor

Mon, 07 Dec 2015 00:01:23 +0100

In the last project, a button was used to deal with the simplest form of a sensor. This time, a potentiometer should be used as an analogue sensor to permanently send measured values into the network.

Behind the 7th door of the advent calendar, there is a potentiometer with 10 kΩ. The setup is shown in the lower figure.

The setup on pin A0

The program: Day7_UDPAnalog

Poti on Internet of Things with the NanoESP

Day 24: Fire alarm for the Christmas tree

Day 7: Analogous sensor