It has a pair of infrared transmitting and receiving LEDs, when detecting obstacles (reflecting surface), receiving LED detects it.
After the comparator circuit processing, a green indicator will light up, at the same time the signal output interface will output a digital signal (a low level signal), can be adjusted to detection distance through the potentiometer, effective distance range 2 ~ 80 cm, easy to assemble and use. It can be widely used in robot obstacle avoidance, line following and so on in many projects.
The liquid level switch detects the rising level of liquid in a sump or tank. It can be connected to a micro controller. It can then be used to start/stop a pump which then pumps liquid in/out until the level of the liquid has been restored to the point where the pump is switched off again. The switch may be used in a pump station, a sensor, a tank alarm, or other devices.
Contact Rating: 10W
Switching Voltage: 220V
Switching Current: 0.5A
Breakdown Voltage: 220VDC
Carry Current: 1.0A
Contact Resistance: 100mohm
If the module does not vibrate, the vibration switch circuit is closed - low output, the green indicator light is on.
On vibration the switch momentary disconnects, output is driven high, the green light goes off.
The module can be directly connected to a microcontroller, which will detect high or low levels, thereby detecting whether the module's environment is vibrating, can play a role in an alarm.
SW-420 normally closed type vibration sensor
Comparator output, clean signal, good waveform, strong driving ability, >15mA
Working voltage 3.3V ~ 5V
Output format: digital switching output (0 and 1)
Using a wide voltage LM393 comparator
Mounting holes for easy installation
Small PCB size: 3.2 x 1.4cm
Power direction cannot be reversed otherwise it is possible to burn the chip
Signal LED light is output Low, signal LED OFF output is High
Smart car, Earthquake alarm, Motorcycle Alarm, Theft alarm
1 x Vibration sensor module
This is PSgame joystick module.
Lots of control projects need joysticks. This module provides an affordable solution to that. Simply connect to two analog inputs, the robot is at your commands with X,Y control. It also has a switch that is connected to a digital pin. This joystick module can be easily connect to a micro controller via normal GPIO with jumper cables.
No soldering required, Reusable for prototyping or design applications of electronic circuits, modify or revise the circuits easily.
Accept resistors,transistors, diodes, LEDS, capacitors and other types of electronic components.
An invaluable tool for experimenting with circuit designs.
Directional movements are simply two potentiometers - one for each axis
Compatible with Arduino interface
Three axis (X,Y,Z and button)
Weight: 15 g
ABS plastic material
Phosphor bronze nickel plated spring clips
Accepts a variety of wire sizes(29-20 AWG)
1 x PS2 joystick module
The metal reeds on a normally open switch stay open when there is no magnet near the switch.
In the presence of a magnetic field, the contacts of a normally-open reed switch will close.
A normally-closed reed switch is closed when it is not near a magnet; as a magnet is brought close to it, a normally-closed switch will open.
These are the normally open type
Color : white
Material : ABS
Dimensions : 27(mm) X 14(mm) X 8(mm)
Switch pattern : N/O normally open, alarm-on-broken
Contact capacity : Maximum switch current : 0.5Amp
Voltage : 200 VDC
Rated power : 10W
Actuation distance : 20-25mm
Wire lead : 22 Awg, About 350mm long
Mounting method : SMD (by screws or double-sided tape)
Recommendations in application : alarms and electronic projects
Package Includes :
1x Reed switch set
Necessary screws for installation
If you’ve ever tried to connect a 3.3V device to a 5V system, you know what a challenge it can be. The SparkFun bi-directional logic level converter is a small device that safely steps down 5V signals to 3.3V AND steps up 3.3V to 5V at the same time.
This level converter also works with 2.8V and 1.8V devices. What really separates this Logic level converter from our previous versions is that you can successfully set your high and low voltages and step up and down between them safely on the same channel. Each level converter has the capability of converting 4 pins on the high side to 4 pins on the low side with two inputs and two outputs provided for each side.
The level converter is very easy to use. The board needs to be powered from the two voltages sources (high voltage and low voltage) that your system is using. High voltage (5V for example) to the ‘HV’ pin, low voltage (3.3V for example) to ‘LV’, and ground from the system to the ‘GND’ pin.
Dimensions: 0.63 x 0.52" (16.05 x 13.33mm)
Smart car or a robot line following (including black and white lines).
Smart car to avoid obstacle and cliff, anti-drop.
Can be applied to other automation applications.
Working voltage: DC 3.3V-5V
Working current: try to use more than 1A power supply
Working temperature: -10°C to +50°C
Mounting: M3 screw holes
Detection range: 1mm to 60cm adjustable, the closer the performance more stable, white reflects the farthest distance.
Output interface: 6 wire interface (1234 to 4 signal output ends, + positive power, - for the negative power is ground)
The output signal: TTL level (can be directly connected to I/0 microcontroller, infrared light reflected back to the sensor induction, red indicator light, output low level; no infrared light, the indicator light does not shine, the output is high.)
1 x Tracking Module (Board + 4 sensors)
1 x Female to Female Dupont jumpers
IR (Infrared) sensor tuned to 38KHz, perfect for receiving commands from a TV remote control. Runs at 3V to 5V so it's great for use on the Raspberry Pi!
To use, connect pin 3 (all the way to the right) to 5V power, pin 2 (middle) to ground and listen on pin 1. It doesn't do any decoding of the signal, just passes the 'raw data' along.
TSOP38238 Technical Features:
- Carrier Frequency: 38kHz
- Transmission Range: 45m
- Directivity: 45°
- Supply Voltage Min: 2.5V
- Supply Voltage Max: 5.5V
- Supply Current: 350µA
- Opto Case Style: Through Hole
- Operating Temperature Min: -25°C
- Operating Temperature Max: 85°C
- Packaging: Each
- Operating Temperature Range: -25°C to +85°C
- SVHC: No SVHC (16-Dec-2013)
- Supply Voltage Range: 2.5V to 5.5V
- Manufacturer: VISHAY MINICAST AGC2
PIR sensors, often referred to as, "Passive Infrared" or "IR motion" sensors, enable you to sense motion. Everything emits a small amount of infrared radiation (IR), and the hotter something is, the more radiation it emits. PIR sensors are able to detect a change in average IR levels of their detection zone (e.g. when a human enters a room, that room will increase in temperature slightly) and hence sense motion.
This one's great, as it can be powered via the Raspberry Pi's 5V output, and be read directly from the Raspberry Pi's GPIO input (as the sensor has a digital 3.3V output!)
- Input Voltage: 4.5V - 20V
- Current Draw: <50µA
- Digital Output: 3.3V (High)
- Digital Output: 0V (Low)
- Working Temperature: -15°C to 70°C
- Delay Time: 0.5 - 200 Seconds
- Sensing Angle: 100° Cone
- Range 5m - 7m
- Sensor Lens Diameter: 23mm
- Length: 24.03mm
- Width: 32.34mm
- Height (with lens): 24.66mm
- Centre screw hole distance: 28mm
- Screw hole diameter: 2mm (M2)
This is a summary of the soil moisture sensor that can be used to detect moisture, when the soil is dry, the module outputs a high level. Use this sensor to build an automatic watering system.
Operating voltage: 3.3V~5V.
Adjustable sensitivity (blue digital potentiometer adjustment)
Dual output mode,analog output more accurate.
A fixed bolt hole for easy installation.
Power indicator (red) and digital switching output indicator (green).
LM393 comparator chip, stable.
PCB Dimension: 3cm x 1.5cm.
Soil Probe Dimension: 6cm x 2cm.
Cable Length: 21cm.
DO: digital output interface (0 and 1).
AO: analog output interface.
1 x Soil moisture detector module
1 x Probe
5 x Jumper Cables
Photosensitive resistance is the resistance of a semiconductor material, the conductivity change when light intensity varies.
Photoresistors are widely used in toys, lamps, cameras and other industries.
Maximum voltage: 150V, DC
Maximum wattage: 90mW
Operating temperature: -30°C ~ 70°C
Spectral peak: 540nm
Bright resistance (10Lux) (KΩ): 5 - 10
Dark resistance: 0.5 MΩ
Response time: 20ms (Rise), 30ms (Down)
Resistance illumination: 2
2 x Photoresistors - GL5516
This module can detect humidity and temperature of the surrounding environment. Outputs a digital signal. Has a mounting hole for easy installation. Includes 3 DuPont wires to interface to microcontroller.
Humidity measurement range: 20%~90% RH
Humidity measurement error: Â±5% RH
Temperature measurement range: 0~60 C
Working voltage: 5V
Size: 28 x 12 x 8mm
1 x DHT11 Temperature and Relative Humidity Sensor Module
- Mutual conversion between 3V and 5V, It's convenient for PI connected to external 5V sensors or modules
- Supports total of 8 channels
- Range of voltage converted: 1.8V~6VDC
How to Use:
In the case of translating between 3.3V and 5V system:
VCCA connects to 3.3V power supply
VCCB connects to 5V power supply
GND connects to power negative pole respectively, the two power supply should be common-grounded with each other
When Ax has 3.3V input, Bx will get 5V output
When Bx has 5V input, Ax will get 3.3V output
NO direction control required
This digital barometer has some interesting applications. By measuring the absolute pressure of the environment and converting this into altitude. you will have a reliable sensor for determining the height of your robot, plane or projectile. This sensor is capable of achieving an accuracy of 1m, with noise of only 17cm in ultra-high resolution. The device will operate at only 0.3uA meaning low current draw for battery powered applications.
1.8V to 3.6V Supply Voltage
Low power consumption - 0.5uA at 1Hz
Max I2C Speed: 3.5 MHz
Very low noise - up to 0.02hPa (17cm)
Pressure Range: 300hPa to 1100hPa (+9000m to -500m)
Size: 21mm x 18mm
1 x BMP180 Digital Barometric Pressure Sensor Board Module
1 x Male to Male 4 pin header
Can be used for Acoustic control light; give sound and light alarm working with Photosensitive sensor
Note:The Maximum induction distance is 0.5M
- Main Chip: LM393, Electret condenser microphone
- Working Voltage: DC 4-6V
- Signal output indication
- Single channel signal output
- The output effective signal is low level
- When there is sound,output low level and the signal lights
This is a 433Mhz RF transmitter with receiver kit for Arduino ARM MCU wireless
Remote control switch, receiver module, motorcycles, automobile anti-theft products, home security products, electric doors, shutter doors, windows, remote control socket, remote control LED, remote audio remote control electric doors, garage door remote control, remote control retractable doors, remote volume gate, pan doors, remote control door opener, door closing device control system, remote control curtains, alarm host, alarm, remote control motorcycle remote control electric cars, remote control MP3.
Product Model: XD-RF-5V
Operating voltage: DC5V
Quiescent Current: 4MA
Receiving frequency: 433.92MHZ
Receiver sensitivity: -105DB
Product Model: XD-FST
Launch distance :20-200 meters (different voltage, different results)
Operating voltage :3.5-12V
Dimensions: 19 * 19mm
Operating mode: AM
Transfer rate: 4KB / S
Transmitting power: 10mW
Transmitting frequency: 433M
Pinout from left → right: (DATA; VCC; GND)
1 x Receiver module
1 x Transmitter
This product is mainly used for water metering
High amplitude ≥ 4.6V
Low amplitude ≤ 0.5V
Electric strength 1250V/min
Insulation resistance ≥ 100MΩ
Hydrostatic pressure testing ≤ 2.0Mpa
The lowest rated working voltage: DC4.5 5V-24V
Maximum operating current: 15 mA (DC 5V)
Working voltage range: DC 5~18 v
Load capacity: ≤ 10 mA (DC 5V)
Use temperature: ≤ 80°C
Operating humidity range: 35%~90%RH (no frost)
Allowing pressure: pressure 2.0Mpa
Temperature: -25~+80 °C
External threads: 1/2"
Outer diameter: 20mm
Intake diameter: 9mm
Outlet diameter: 12mm
Water heaters, water vending machines, flow measurement
1x Water flow sensor
A compact vertically mounted float switch which can be mounted at either the top or bottom of a tank (by the supplied 'O' ring and nut) to either rise or fall for activation (internal magnet) of a sealed reed relay.
The sensor is supplied pre-wired with flying output leads.
Float switch is a used to sense the level of liquid within a tank, used to activate a pump, an indicator, an alarm, or other device.
Use them with hydroponics, saltwater tanks, freshwater tanks, gardening, aquariums for power head control, pet bowls, fish tanks, filtration, heating, or what ever your project may be
Contains no mercury
Down float switch
Cable Length: 36cm
Maximum Load: 50 W
Max Switching Voltage: 100V DC
Minimum Voltage: 250V DC
Maximum Switching Current: 0.5 A
Max Load Current: 1.0 A
Max Contact Resistance: 0.4 Ω
Temp Rating: -20~+80℃
Net Weight: 12g
Package includes :
1 x Liquid Float Switch