A fire detection system is a set of devices and equipment that are designed to detect the presence of fire and to provide an alarm signal to alert building occupants and the fire department. There are several types of fire detection systems, including:
It is possible to use a Micro:bit to control a fire detection system, though it would likely need to be done as part of a larger system that includes sensors, alarms, and other components. The Micro:bit could be used to read input from fire sensors, such as smoke detectors or heat detectors, and then trigger an alarm or send a signal to the fire department in the event of a fire.
One possible way to accomplish this is to connect the Micro:bit to a network of fire sensors using its input and output pins. The Micro:bit could then read the signals from the sensors, and if a fire is detected, it could trigger an alarm or send a message to the fire department via a wired or wireless communication module.
Another possible way is to use the Micro:bit‘s built-in temperature sensor to detect heat, or a smoke sensor or flame sensor connected to it. The Micro:bit can then use its LEDs or buzzer to sound an alarm, or send a message via radio or Bluetooth to a central control panel or to the fire department.
In this project a fire detection system with Micro:bit will be realized. It mainly uses a KY-026 flame sensor, buzzer and LED. When the flame sensor detects a fire, the Micro:bit board orders the buzzer to ring and the red LED to light up.
Micro:bit is a small, low-cost microcontroller board that was developed by the Micro:bit Educational Foundation for use in computer education. It is designed to be easy to use and accessible to a wide range of users, including children and beginners. The Micro:bit board measures about 4cm by 5cm and features a 25-pin edge connector, a 5×5 LED matrix, two programmable buttons, an accelerometer, a compass, a Bluetooth Low Energy (BLE) module, and a USB connector.
The Micro:bit is widely used in education, providing a hands-on learning experience for students of all ages to learn computer programming, logic, and problem-solving. It’s also used by hobbyist and makers to create fun and interactive projects.
Microbit GPIO board
A Micro:bit GPIO (General Purpose Input/Output) Expansion Board is an accessory that can be used to extend the capabilities of a Micro:bit by providing additional input/output (I/O) pins. These pins can be used to connect sensors and actuators, such as LEDs, buttons, motors, and other electronic components.
The expansion board typically connects to the Micro:bit using a standard edge connector and provides a set of male headers that can be used to connect external components.
flame detector KY-026
The KY-026 is a module for the Micro:bit that includes a flame sensor. The module is used to detect the presence of a flame, and it outputs a digital signal that can be read by the Micro:bit. The output signal can be used to trigger an alarm or to send a signal to a central control system.
The KY-026 flame sensor module typically uses an infrared detector to detect the presence of a flame. The infrared detector is sensitive to the infrared radiation that is emitted by a flame. When a flame is detected, the module will output a high signal (usually 3.3V) to the Micro:bit. When the flame is not detected, the output signal is low (usually 0V).
The KY-026 module can be connected to the Micro:bit using its input/output pins and it can be programmed using the Micro:bit‘s software development kit (SDK).
A buzzer is an electronic device that produces an audible sound when an electrical signal is applied to it. It can be used in a variety of applications, including alarms, doorbells, and other warning systems.
A buzzer can be connected to a Micro:bit using its input/output pins. The Micro:bit can then send a signal to the buzzer to turn it on and off, or to produce different sounds. The Micro:bit can also be programmed to control the frequency and duration of the sound produced by the buzzer, allowing for a wide range of different sounds and patterns.
The most common way to connect a buzzer to a Micro:bit is through a transistor or a relay, which acts as a switch to turn the buzzer on and off. This is done by sending a signal from the Micro:bit’s pin to the base of the transistor or relay, which then switches the power to the buzzer on or off.
1 red LED
A red LED (light-emitting diode) is a type of semiconductor device that emits light when an electric current is passed through it. It is commonly used as an indicator light in electronic devices, and it can also be used for lighting and other applications.
A red LED can be connected to a Micro:bit using its input/output pins. The Micro:bit can then send a signal to the LED to turn it on and off, or to change its brightness. The Micro:bit can also be programmed to control the flashing, blinking and fading of the LED, depending on the use case.
1 resistance 220Ω
Resistance is a measure of a material’s ability to oppose the flow of electric current. It is measured in ohms (Ω) and is represented by the Greek letter omega (Ω). The resistance of a material is determined by its composition and temperature.
In electrical circuits, resistance is an important factor that affects the amount of current flowing through the circuit. A circuit with high resistance will allow less current to flow through it than a circuit with low resistance. This can be useful in certain applications, such as controlling the brightness of an LED, or limiting the current flowing through a circuit to protect it from damage.
Connecting wires are used to connect various components in an electronic circuit. They allow for the transfer of electricity, data, or signals between different devices and components.
When connecting wires to an Arduino or other microcontroller, it is important to pay attention to the correct pinout. The pinout refers to the arrangement of pins on the microcontroller and the corresponding function of each pin. The Arduino pinout can be found in the documentation provided by the manufacturer, or in various resources available online.
A test plate, also known as a test jig, is a device used to test electronic circuits and components. It is a board or plate that has been designed to hold and connect various components and devices in a specific configuration, allowing for the easy testing and measurement of their performance.
A test plate can be used to test various types of electronic circuits and components, such as microcontrollers, sensors, and actuators. It typically includes connectors and sockets for connecting wires, power supply and measurement devices such as multimeters, oscilloscopes, and power supplies.
To complete the assembly, you can connect
The mounting methods are numerous and here are some examples:
The Fire Detection System makecode program is as follows: