555 Night Breather
The 555 Night LED Breather is a multistage kit that combines a light detector, a 555 astable oscillator, and an RC charging bank to produce a night activated LED beacon. When the light level falling onto the kit falls below a defined level (using the potentiometer), the circuit enables the 555 astable oscillator which in turn makes an LED slowly turn on and off. The rate at which the LED is turned on and off can be adjusted with a second potentiometer and this kit is ideal for night beacons and path indicators. This kit is great for the classroom and can be constructed in under an hour by most students.
Instructions / Documentation
Product specifics
- Component Count : 17
- Battery Powered? : Yes, 9V PP3
- Operating Voltage : 5V to 16V
- Operating Frequency : 0.5Hz to 2Hz
- Output Voltage : N/A
- Output Current : N/A
- Dimensions (PCB) : 44mm x 30mm
- Mounting Holes : Yes
- Prebuilt : No – Kit form
- Batteries Not Included
Included in this kit
- 2 x 8 DIP Socket
- 1 x 555
- 1 x LM358
- 1 x 100R Resistor
- 2 x 1K Resistors
- 1 x 2K2 Resistor
- 2 x 10K Potentiometer
- 1 x 100nF Capacitor
- 1 x 100uF Capacitor
- 1 x 470uF Capacitor
- 1 x Photodiode
- 1 x Green LED
- 1 x PP3 Connector
- 1 x PCB
Applications
The 555 Night LED Breather Kit is highly ideal for use in the classroom as it is a small kit that can be constructed in under an hour. It can be used as a teaching aid for learning how to construct electronic kits as well as an example of how the 555 astable oscillator works. The kit includes four mounting holes ideal for design and technology-related courses while the LED can easily be mounted remotely from the PCB and wires used to connect the LED to its associated pads. The 555 Night LED Breather kit is also ideal for use as a stand-alone module for projects and applications including night lights, signal indication at night, and warnings. If a pair of flashing lights are desired, the transistor flasher kit would be a good alternative as this has fewer parts and requires no integrated circuits to function.
Notes
Note that product specifics such as output frequency depend on the tolerance of the components. The numbers provided here are an approximation only. Also take note that the estimated delivery is not guaranteed (unless special delivery is chosen) and free delivery has a maximum waiting time of two weeks. Any product that is returned which is built using lead solder is ineligible for a refund.
All parts sold by MitchElectronics are compliant with RoHS and REACH directives which ensure that they can be used in commercial environments as well as complying with environmental laws. Watch the video below to learn more about RoHS compliance and why it may be important for your next DIY project!
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