Infra Red/Light/Colour
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.
Specifications:- 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
- 1x Infrared Receiver
- Using an IR remote with a Raspberry Pi
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!)
This PIR includes an adjustable delay before firing (approx 0.5 - 200 seconds), has adjustable sensitivity and two M2 mounting holes! It runs on 4.5V-20V power (or 3V by bypassing the regulator with a bit of soldering) and has a digital signal output (3.3V) high, 0V low. Its sensing range is up to 7 meters in a 100 degree cone.
Specifications:
- 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
Dimensions:
- 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)
- 1x HC-SR501 Motion Sensor
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.
Specifications:
Model: GL5516
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
100λ10: 0.5
Response time: 20ms (Rise), 30ms (Down)
Resistance illumination: 2
Package includes:
2 x Photoresistors - GL5516
Read the Docs
The sensor module light is adjustable to the environment, the working voltage is 3.3 V to 5 V.
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.
Specifications:
Working voltage : 3.3V – 5V DC
Working current : ≥ 20mA
Working temperature : -10°C – 50°C
Detection distance : 2cm – 40cm
IO interface : 4-wire interface (-/ /S/EN)
Output signal : TTL level (low level if obstacle detected, high if no obstacle)
Adjustment method : multi-turn resistance adjustment
IR pulse frequency : 38kHz
Effective angle : 35°
Board Size : 1.6cm x 4cm
Weight : 9g
What's in the box?:
1 x Infrared Obstacle Avoidance Sensor
The TCRT5000 is an IR sensor unit. It has both a Photodiode and a Phototransistor coupled in its package. This sensor can be used to detect the presence of object or any other reflective surface in front it, also with some level of programming it can also calculate the distance of the object in front it.
Features:
Size: 3.5 x 1cm
Power supply: 5V DC
Detector distance: 10mm
Build-in Tcrt5000 Sensor NSOR
Applicable to a variety of platforms including Arduino / AVR / ARM /PIC
Package includes:
1 x Tracking Sensor Module
Build A Line-following robot
Infrared receiving module adopts 1838 infrared receiving head
Light resistance, strong electromagnetic interference, built-in infrared dedicated IC, can work under 500 lux light intensity
Widely used in remote control toys, satellite receivers, air conditioner, heater, electric fan, lighting and other home appliances.
Specifications:
Dimension: 6.4 x 7.4 x 5.1mm
Receiving angle: 90 °
Working voltage: 2.7 ~ 5.5V
Frequency: 37.9KHz
Receiving range: 18m
Package includes:
1 x Infrared sensor receiver module
Resources:
Wiki
HC-SR505 range range of 3-4 meters (9-12 feet). When triggered, the sensor output goes HIGH for approximately 6-12 seconds then returns LOW.
Uses improved groove optical coupling sensor, width 5mm. Has an output state light, if output level is high, the lights are off. If output is low,light is on. If the sensor is covered, it will output a high level.
Feature:
Uses improved groove optical coupling sensor, width 5mm.
It has an output state light, if output level is high, the lights are off. If output is low,light is on.
If sensor is covered,it will output a high level.
Working voltage of 3.3V to 5V.
Output: digital switch output (0 and 1).
Equipped with a fixed bolt hole, easily install.
Small board PCB size: 32 mm x 14 mm.
Use the LM393 wide voltage comparer.
Wiring specifications:
VCC Connect positive 3.3 to 5V power supply
GND Connect power negative
DO TTL switch signal output
AO Not used
Package includes:
1 x Speed Measuring Sensor Module
The MLX90615 is an Infra Red thermometer for non contact temperature measurements. Both the IR sensitive
thermopile detector chip and the signal conditioning chip are integrated in the same TO-46 can package.
Thanks to its low noise amplifier, 16-bit ADC and powerful DSP unit, a high accuracy and resolution of the
thermometer is achieved. The thermometer is factory calibrated with the digital SMBus compatible
Features
- Small size, low cost
- Easy to integrate
- Factory calibrated in wide temperature range: -40…85C for sensor temperature and -40…115C for object temperature
- High accuracy of 0.5C over wide temperature range (0... 50C for both TA and TO )
- High (medical) accuracy calibration
- Measurement resolution of 0.02C
- SMBus compatible digital interface
- Power saving mode
- Customizable PWM output for continuous reading
- Embedded emissivity compensation
- 3V supply voltage
Datasheets available at https://github.com/arduinolearning/Datasheets/blob/master/MLX90614.pdf
- Using the ITR20001 Reflective Photoelectric Sensor
- Five ITR20001/T infrared light detectors are used with higher sensitivity, wider detection range and anti-interference.
- Five-channel analog output, higher accuracy, so that the tracking range of the car is wide and stable
Connection Reference:
VCC: Connect 3.3~5V
GND: Connect GND
U1: Connect MCU.IO(Channel, analog output)
U2: Connect MCU.IO(Channel, analog output)
U3: Connect MCU.IO(Channel, analog output)
U4: Connect MCU.IO(Channel, analog output)
U5: Connect MCU.IO(Channel, analog output)
Specifications:
Note:
*Please allow 1-3mm difference due to manual measurement.
Package Includes:
1 x Infrared Tracking Sensor
This Reflective IR Sensor is a simple plastic casing with two elements - an IR LED and an IR phototransistor. You can control the IR LED and turn it on to bounce IR off objects to determine their reflectivity. White & light colored stuff will bounce the light, so you can detect it.
Specifications:
Color | Black blue |
Material | Plastic iron |
Specification | Detecting range: 0.591" (15mm); Detecting method: Reflective; Collector Emitter Voltage: 70V; Collector Current: 100mA; Forward Current: 60mA; Output type: Phototransistor; Working temperature: -25~85'C |
Features | Compact construction, sense the presence of an object by using the reflective IR beam from the object |
Application | Perfect for line tracking robot car DIY project |
Packing List | 1 unit |
What's in the box?:
1 x TCRT5000L Reflective switch
Resources:
How to use TCRT5000 switches
For a wide range of brightness for 1 lux high precision measurement.
This sensor module is the most suitable to receive the ambient light data for adjusting LCD and other related projects. It is possible to detect wide range at High resolution.
The sensor is a calibrated digital light sensor that measures the intensity of the ambient light and stores it as a 16-bit number.
Specifications:
Type: GY - 302
Size: 13.9 mm X 18.5 mm
The original BH1750FVI ROHM chip
Power supply: 3-5 V
Data range: 0-65535
Sensor built-in and bitad converter
Direct digital output, bypassing the complicated calculation, omit calibration
Do not distinguish between ambient light
Close to the visual sensitivity of spectral characteristics
Package Includes:
1 x GY-302 Module
This 4 channel Infrared Obstacle Avoidance Proximity Sensors Module supports 4 IR transmitter and IR receiver pairs that sends out IR energy to look for obtracles ahead.
Specifications:
- Working voltage: DC 3.3V-5V
- Working current: try to use more than 1A power supply
- Working temperature: -10 °C - 50 °C
- Mounting: M3 screw
- Detection distance: 1mm to 60 CM is adjustable, the closer the distance is, the more stable the performance is, and the white reflection distance is the furthest.
- Size: Central control board 4.4mm × 4.0mm × 12mm, small board 25mm × 12mm × 12mm
- Output interface: 6-wire interface (1234 is 4 signal output, is positive power, - is negative power(ground)
- Output signal: TTL level (can be directly connected to the I/O number of the single-chip microcomputer. When the infrared light reflected from the sensor is sensed, the red indicator light is on and the output level is low; when there is no infrared light, the indicator light is off and the output is level is high.)
Application:
- Smart car or robot hunt (including black and white lines), along the black line path, also known as tracing.
- The smart car avoids the cliff and prevents falling.
- Smart car avoids obstacles
Package includes:
1 x Main Board
4 x IR boards
1 x DuPont lines set
The TCS230 color detector measures three primary colors Red, Green and Blue and also has a separate white light detector. Since any color can be created from different levels of these primary colors, you can find out the color composition of a light source.
The four LEDs on the breakout board are there to illuminate the subject with an even light source, making measurement more reliable.
You can use the TCS230 where you need to take action based on the color of an object. The device does react to infrared so may need an infrared filter or use the device in an enclosed space.
Features:
Chip: TCS230
Input voltage: DC 3V-5V
Output frequency voltage: 0 ~ 5V
Use bright white LED lights
Can be connected directly with Microcontroller
Static detection of the measured object color
Best detection distance: 10mm
Package Includes:
1 x colour recognition sensor
Maker Reflect is a tiny reflectance sensor that consists of an infrared (IR) LED that transmits IR light onto a surface and a phototransistor measures how much light is reflected back. The output is in analog voltage - The more IR light is sensed by the phototransistor, the lower the voltage.

Typically this sensor is used in line following robot as the white surfaces reflect more IR than black surfaces. However, it is not limited to line follower, there are much more application which can utilize the Maker Reflect. Eg.: Edge/Border sensor in Sumo robot, wall sensor in maze solving robot, short-distance object detector (presence sensor), a sensor for rotary wheel encoder...etc.

Measuring only (L)18.1mm x (W)8.4mm x (H)4.2mm (Exclude the header pin), this tiny sensor can be easily fitted in the tightest space available on your robot. We purposely designed the sensor so that the mounting hole is at the center so that the sensor can be at the front-most position. This is especially important in the Sumo robot.
Features:
- Operating Voltage: 3.3V and 5V Compatible
- Sensing Distance (Height): 1mm to 40mm (Vcc = 5V, Black line on a white surface)
- Output: Analog Voltage (White surface = lower voltage)
Example Application: Line Following Robot, Sumo Robot, Wall Following Robot, Short Distance Object Sensing, Sensor for Printed Rotary Wheel Encoder.
Documents:

What's in the box?
1 x MAKER-REFLECT
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