Shreemay Enterprises

Sensing Type	Capacitive
Temp Range	-40 to 80 Deg C
Supply Voltage	3.3-5.5V DC
Accuracy Humidity	±2 %RH
Accuracy Temp	±0.5 °C
Part Number	DHT22

The DHT22 (also known as AM2302) is a low-cost, digital temperature and humidity sensor that uses a capacitive humidity sensor and a thermistor-based temperature sensor to measure ambient conditions. It offers a wider measuring range and higher accuracy (±2% RH, ±0.5°C) than the DHT11

Model Name/Number	Ds18b20
Usage/Application	Industrial
Cable Length	1M
Usable temperature range	-55 to 125 DegreeC (-67 DegreeF to +257 DegreeF)
selectable resolution	9 to 12 bit
Unique ID	Yes 64 bit
Accuracy	+-0.5 DegreeC
Query time	less than 750ms
power	3.0V to 5.5V
Digital data	yes

This is the DS18B20 Water Proof Temperature Sensor Probe – Black (1m) which is based on the DS18B20 sensor.
It is very handy for when you need to measure something far away, or in wet conditions. Because they are digital, you don’t get any signal degradation even over a long distance.
These 1-wire digital temperature sensors are fairly precise (±0.5°C over much of the range) and can give up to 12 bits of precision from the onboard digital-to-analog converter.
They work great with any microcontroller using a single digital pin, and you can even connect multiple ones to the same pin, each one has a unique 64-bit ID burned in at the factory to differentiate them. Usable with 3.0-5.0V systems. When using with microcontroller put a 4.7k resistor to the sensing pin, which is required as a pullup from the DATA to the VCC line.
Wired connection

Red: VCC/VDD

Yellow/White: DATA

Black: GND

Features 

Each pin uses a heat-shrinkable tube to prevent short circuits, internal sealing glue, waterproof, moisture proof.

Stainless steel tube encapsulation waterproof moisture proof prevents rust.

Stainless steel tube 6mm diameter by 30mm long

A probe by new original installation import DS18B20 temperature sensor chip.

Stainless steel shell (6 * 45 mm), lead length 100 cm (shielding wire) use stability.

Without the external components, the unique single bus;

Note: The probe wire length may vary ±3%
Package Includes 

1 x Waterproof Digital Thermal Probe DS18B20 1 meter cable.

Maximum Power	92 W
Model number:	TEC1-12706
Operating Voltage	12V
Maximum Voltage Umax (V)	15.4V
Maximum Current Imax (A)	6A
Maximum Power:	92 W
Maximum Temperature:	138 DegreeC
Power Cord	200mm

Product Description

Looking to cool down your DIY project or any electronic device then you are at the right product. The TEC1 12706 40×40 mm Thermoelectric Cooler 6A Peltier Module is the simple application of the Peltier Thermoelectric Effect. The module features 127 semiconductor couples in the area of 40 x 40mm which very effectively cools and heats up to 90°C.

The thermoelectric cooler is also known as TEC or Peltier Module creates a temperature differential on each side. One side gets hot and the other side gets cool. They use to either warm something up or cool something down; above all, you can use either side. You can also take advantage of a temperature differential to generate electricity.

A thermoelectric cooler (TEC) module is a semiconductor-based electronic component that functions as a small heat pump. By applying the DC power source to a TEC, heat will be transferred from one side of the module to the other. It creates a cold and hot side. They are widely useful in industrial areas, for example, computer CPU, CCDs, portable refrigerators, medical instruments, and so on.

Operating Tips

1. Max. Operating Temperature: 138 Degree C
2. Do not exceed Imax or Vmax when operating a module.
3. Please carry out moisture protection options (sealing) in final application use.
4. Life expectancy: 200,000 hours
5. Failure rate based on longtime testing: 0.2%.

Features

• Small module.
• Operable up to 138°C.
• Easy transition between the hot side to the cool side and vice-versa just by reversing the polarity of the supply.
• Quality tested cooling cells.
• Solid-state, vibration-free, noise-free.
• Simple to install and operate.
• Should use with a heat sink.

Package Includes

• 1 x TEC1-12706 40x40mm Thermoelectric Cooler 6A Peltier Module

Brand	Array
Sensing Distance	1mm to 20 cm
Supply Voltage	3.3 - 5V DC
Connection Type	Connector M12
Body Material	PCB
Body Style	Rectangular
Operating Temperature	10 to +50 Degree C
Output interface	6 wire interface
Working Current	>1A
Detection Angle	35 Degree
Mounting Hole Diameter	3mm
Big Board Size	42 x 40 x 12 mm
Small Board Size	25 x 12 x 12 mm

When the module detects obstacles signal, red indicator lights on and OUT port continuous outputs low voltage level signals at the same time Effective detect range of 2 ~ 60cm, working voltage of 3.3V-5V. The detection range of sensor can be adjusted by a potentiometer,clockwise to increase and counterclockwise to reduce Target's reflectivity and shape is the key point of detection distance. Small and black objects have minimum detection distance, while large and white ones have maximum distance Output port can be directly connected to the SCM IO port, also can drive a 5V relay module or buzzer module directly,Connection: VCC-VCC; GND-GND; OUT-IO Widely used for robot obstacle avoidance, car obstacle avoidance, assembly line counting and black white line tracking.Imported from UK.Feature:1.When the module detects obstacles signal, red indicator lightson and OUT port continuous outputslow voltage level signals at the same time2.Effective detect range of 2 ~ 60cm, working voltage of3.3V-5V. The sensor's detection rangecan be adjusted by a potentiometer,clockwise to increase andcounterclockwise to reduce3.Target reflectivity and shape is the key point of detectiondistance.Small and black objects have minimum detection distance, whilelarge and white ones have maximum distance4.Output port can be directly connected to the SCM IO port, alsocan drive a 5V relay module or buzzer module directly,Connection: VCC-VCC; GND-GND; OUT-IO5.Widely used in robot obstacle avoidance, car obstacleavoidance, assembly line counting and black white line tracking6.the comparator uses LM339,work stably;

Specifications:
Working Voltage: 3.3V-5V DC
Working Current: >1A
Detection Distance: 2~60cm
Detection Angle: 35°
Size:
Big Board: 42*40*12mm
Small Board: 25*12*12mm
Mounting Hole Diameter: 3mm

Note:
1) Do not put probe toward sunlight. the probe will beinterfered by Sunlight.
2) Sensitivity should not be regulated excessively high becausehigh sensitivity can easily lead to false trigger.

Axis	3 Axis
Measuring Range	±16 g
Output Type	I2C
Supply Voltage	3V-6V DC
Sensor Type	MEMS
Part Number	ADXL345

Accelerometer is used to measure both static acceleration i.e. gravitational and dynamic acceleration i.e. motion or shock. In most of the robotics applications, it is used to measure the tilt of the object. The ADXL345 is a low power, MEMS, three-axis accelerometer module with both SPI and I2C interfaces to communicate with your controller etc. It also has user-selectable sensitivity and 10-13bit of resolution. This Digital Accelerometer has a voltage regulator on board hence can be connected to both 5V and 3.3V powered controllers. Its high-resolution 4mg/LSB also enables it to measure less than 1° change in the orientation of the object. The ADXL345 Sensor can be used in Robotics applications, measuring vibration in a machine, in the data acquisition system of a vehicle, measuring the motions of a bridge, etc. It can also be used to detect taps on an object.

Specifications

• 3V-6V DC Supply Voltage
• Measuring range ±16g
• Onboard LDO Voltage regulator
• Built-in Voltage level convertor (MOSFET based)
• Can be interface with 3V3 or 5V Microcontroller.
• All necessary Components are populated.
• Ultra-Low Power Consumption: 40uA in measurement mode, 0.1uA in standby@ 2.5V
• Free-Fall Detection
• Digital Output with SPI and I2C interfaces

Detection Range	3 - 80cm
Dimensions	23.2 x 69 mm
Supply Voltage	3.3 - 5V DC
Body Material	Plastic
Body Style	Cylindrical
Number of Wires	2 Wire
Connection Type	Cable
Operating Temperature	-40 Degree C to 85 Degree C
Item Model Number	E18 D80nk
Cable Length	1 Meter
Current Consumption	300 mA
Weight	35 gm
Light source	Infrared

This Infrared Reflectance Sensor Module carries a single infrared LED and phototransistor pair in an inexpensive, tiny module that can be mounted almost anywhere and is great for obstacle detection of robot and home alert system.

The optimal sensing distance is within 50cm (20 inches). Building interactive work is as easy as piling bricks, just plug it to our Arduino Sensor Shield with a buckled cable, and make it looks professional and neat.
The Infrared Reflectance Sensor Module simply gives a digital signal when it detects infrared reflection from a person or object, so the code is exactly as the one we would use for a push button. The infrared proximity switch module is a reflection-type photoelectric sensor which integrates transmitting and receiving infrared beams function. Infrared proximity switches work by sending out beams of invisible infrared light. A photo-detector on the proximity switch detects any reflections of this light. These reflections allow infrared proximity switches to determine whether there is an object nearby.

Humidity Range	0 to 100 %RH
Temp Range	-40 to 80 Deg C
Supply Voltage	2.2 to 5.5V
Accuracy Humidity	±3 %RH
Accuracy Temp	±0.5 °C
Part Number	DHT20

The DHT20 is a digital temperature and humidity sensor that offers an upgrade over the DHT11, boasting improved accuracy, stability, and a wider measurement range. It utilizes a dedicated ASIC sensor chip, a capacitive humidity sensor, and a standard on-chip temperature sensor. The sensor communicates via the I²C protocol, making it compatible with various microcontrollers and devices. 

Model Number	ACS712
Rated Current	20A
Usage/Application	Industrial, commercial and communications systems
Sensed Current Type	DC, AC
Output	Analog
Accuracy	+- 1%
Operating Voltage	5.0 V
Operating Temperature	-20 deg C to 85 deg C
Package Type	SOIC8
Output sensitivity	66 to 185 mV/A
Non-linearity	3%
Output Plug	3.5mm

The 20A Range Current Sensor Module ACS712 consists of a precise, low-offset, linear Hall circuit with a copper conduction path located near the surface of the die. Applied current flowing through this copper conduction path generates a magnetic field in which the Hall IC converts into a proportional voltage.

Sensing and controlling current flow is a fundamental requirement in a wide variety of applications including, over-current protection circuits, battery chargers, switching mode power supplies, digital watt meters, programmable current sources, etc.

This ACS721 current module is based on the ACS712 sensor, which can accurately detect AC or DC current.

The maximum AC or DC that can be detected can reach 20A, and the present current signal can be read via analog I / O port of Arduino.

Note: The color of the product may vary. while shipping you may get any one of them.

Features:-

• The low-noise analog signal path
• Device bandwidth is set via the new FILTER pin
• 5 µs output rise time in response to step input current
• Small footprint, low-profile SOIC8 package
• 2.1 kV RMS minimum isolation voltage from pins 1-4 to pins 5-8
• 5.0 V, single-supply operation
• 66 to 185 mV/A output sensitivity
• Output voltage proportional to AC or DC currents
• Factory-trimmed for accuracy
• Extremely stable output offset voltage
• Nearly zero magnetic hysteresis
• The ratio metric output from the supply voltage.

Package Includes :

• 1 x 20A Range Current Sensor Module ACS712

Note:

• ACS712 is based on the Hall detection principle, please try to avoid the magnetic field, when using it as it may impact the reading accuracy.

Brand Name	SE
Sensing Distance	2 to 30 cm
Supply Voltage	3.3 - 5 V DC
Comparator chip	LM393
Detection angle	35 Degree
Board size	3.1 x 1.5 cm

Infrared Obstacle Avoidance IR Sensor Module (Active Low) has a pair of infrared transmitting and receiving tubes. When the transmitted light waves are reflected back, the reflected IR waves will be received by the receiver tube. The onboard comparator circuitry does the processing and the green indicator LED comes to life.

The module features a 3 wire interface with VCC, GND and an OUTPUT pin on its tail. It works fine with 3.3 to 5V levels. Upon hindrance/reflectance, the output pin gives out a digital signal (a low-level signal). The onboard preset helps to fine-tune the range of operation, the effective distance range is 2cm to 80cm.

Features 

• Easy to assemble and use
• Onboard detection indication
• Effective distance range of 2cm to 80cm
• A preset knob to fine-tune distance range
• There is an obstacle, the green indicator light on the circuit board.

Model Number	WCS15xx
Usage/Application	Industrial, commercial and communications systems
Brand	Winson
Sensed Current Type	AC, DC
Sensing Current	0A - 200A
Accuracy	+- 1%
Operating Voltage	3.0V - 12V
Operating Temperature	-20 deg C to 125 deg C
Color	Milk White
Package Type	1X00, 2X00, 6X00
Sensitivity	Varies For Each Product

Current Sensor provides economical and precise solution for both DC and AC current sensing in industrial, commercial and communications systems. Typical applications include motor control, load detection and management, over-current fault detection and any intelligent power management system etc

Material	Plastic
Sensing Distance	2 ~ 450 cm
Country of Origin	Made in India
Input Supply Voltage	5 VDC
Operating Current	<2 mA
Sensing angle	< 15 Degree
Accuracy	0.3 cm
Thickness	2.8 ~ 3.1 mm
Inner diameter	16 mm
Weight	16 gm
Model	HCSR04

Ultrasonic sensors work by emitting sound waves at a frequency too high for humans to hear. They then wait for the sound to be reflected back, calculating distance based on the time required. This is similar to how radar measures the time it takes a radio wave to return after hitting an object.

Model Number	SCT-013-015
Usage/Application	Industrial, commercial and communications systems
Rated Current	15 A
Sensed Current Type	AC
Output	Analog
Accuracy	+- 1%
Operating Temperature	-25 deg C to 70 deg C
Mounting	Clamp
Storage temperature	-30 to 90 deg cen
Frequency range	50Hz-1KHz.
Max voltage	600 V
Max current	40 A

TheSCT-013-015 Non-invasive current sensor offers a silicon steel sheet split core structure, hanging installation with leads Length of 1m, used for current measurement, monitor and protection for AC motor, lighting equipment, air compressor, etc.

• Input current (RMS): 15A.
• Max current: 40A.
• Work temperature: -25 70
• Storage temperature: -30 90
• Work voltage: 660V.
• Frequency range: 50Hz-1KHz.
• Dielectric strength: 3.5KV 50Hz 1min

Sensing distance	10 mm
Output type	digital square wave
Mounting Type	Low-Profile Surface
Country of Origin	Made in India
Frequency	50 Hz
Voltage	24V
Phase	Single Phase
IP Rating	IP 45

• _{Operating Voltage: 3V-5V}
• _{High-resolution conversion of light intensity to frequency.}
• _{Chip pins all has drawn for standard 100.}
• _{Put the needle (2.54 mm).}
• _{Mil-convenient for bitmap board.}
• _{Programmable color and full-scale output frequency.}
• _{Communicate directly with a microcontroller.}
• _{Low-profile surface mount package.}

_{TCS3200 Colour Recognition Sensor Module}

_{The TCS3200 Color Recognition Sensor Module features a high-quality light sensor that enables color detection by analyzing Red, Green, and Blue components. Its user-friendly design provides easy access to all TCS3200 pins via 0.1″ headers, making integration with PCBs, breadboards, or stripboards straightforward.}

_{Equipped with four white LEDs, this module ensures sufficient illumination for accurate color sensing, regardless of external lighting conditions. It operates within a voltage range of 2.7V to 5.5V, making it compatible with a wide variety of microcontrollers, including PICs, AVRs, ARM, and Arduino. This versatility makes it suitable for numerous applications across different platforms.}

_{The pinout is clearly labeled on the board and is as follows}

_{Header one on the left side of the board}

• _{S0: Output frequency scaling selection input (along with S1)}
• _{S1: Output frequency scaling selection input (along with S0)}
• _{OE: Output Enable – if held low, the output of the module is turned on}
• _{GND: Ground – connect to 0V}

_{Header two on the right side of the board}

• _{S3: Photodiode type (along with S2)}
• _{S2: Photodiode type (along with S3)}
• _{OUT: Output – A square wave appears here showing the intensity of the detected colour}
• _{VCC: Power – connect to 2.7V-5.5V}

 

Poles sensed	Bipolar
Supply voltage	5 V
Part Number	A3144
No of pins	3 pin
Output Current	25 mA
Operating Temperature	-40 to 90 Deg C

The A3144 Hall Effect Sensor Magnet Detector Switch for Arduino is a switch that will turn on/off in the presence of a magnetic field. If no magnetic field is present, the signal line of the sensor is HIGH (3.5 V). If a magnetic field is presented to the sensor, the signal line goes LOW, at the same time the LED on the sensor lights up. An onboard LED will also indicate the presence of a magnetic field.

Pin Connection

Connect the Powerline (middle) to +5V and ground (-) to GND. Connect signal (s) to any digital pin on the Arduino.

Features 

1. Digital Output Hall-effect sensor.
2. Operating voltage: typically 5V.
3. Output Current: 25mA.
4. It can be used to detect both the poles of a magnet.
5. The output voltage is equal to the operating voltage.
6. Operating temperature: -40°C to 85°C.
7. Turn on and Turn off time is 2 μsec each.
8. Inbuilt reverse polarity protection.
9. Suitable for Automotive and Industrial Applications.

 

Function Type	RTC Module
Timing Range	uS Range
Interface Type	I2C
wire I2C interface.	Two
Hour	Minutes: Seconds AM/PM.
Day	Day Month,Date Year
based RTC	DS1307
Battery include	yes
output pin	1Hz
Available	8-pin DIP or SOIC

Product Description

Real-time clocks (RTC), as the name recommends are clock modules. The DS1307 real-time clock (RTC) IC is an 8 pin device using an I2C interface. The DS1307 is a low-power clock/calendar with 56 bytes of battery backup SRAM. The clock/calendar provides seconds, minutes, hours, day, date, month and year qualified data. The end date of each month is automatically adjusted, especially for months with less than 31 days.

They are available as integrated circuits (ICs) and supervise timing like a clock and also operate date like a calendar. The main advantage of RTC is that they have an arrangement of battery back up which keeps the clock/calendar running even if there is a power failure. An exceptionally little current is required for keeping the RTC animated. We can find these RTCs in many applications like embedded systems and computer motherboards, etc. In this article, we are going to see one of the real-time clock (RTC), i.e. DS1307.

Pin Description of DS1307:

Pin 1, 2: Connections for standard 32.768 kHz quartz crystal. The internal oscillator circuitry is intended for operation with a crystal having a specified load capacitance of 12.5pF. X1 is the input to the oscillator and can alternatively be connected to an external 32.768 kHz oscillator. The output of the internal oscillator, X2 is drifted if an external oscillator is connected to X1.

Pin 3: Battery input for any standard 3V lithium cell or another energy source. Battery voltage should be between 2V and 3.5V for suitable operation. The nominal write-protect trip point voltage at which access to the RTC and user RAM is denied is set by the internal circuitry as 1.25 x VBAT nominal. A lithium battery with 48mAhr or greater will backup the DS1307 for more than 10 years in the absence of power at 25ºC. UL recognized to ensure against reverse charging current when utilized as a part of conjunction with a lithium battery.

Pin 4: Ground.

Pin 5: Serial data input/output. The input/output for the I2C serial interface is the SDA, which is the open drain and requires a pull-up resistor, allowing a pull-up voltage to 5.5V. Regardless of the voltage on VCC.

Pin 6: Serial clock input. It is the I2C interface clock input and is used in data synchronization.

Pin 7: Square wave/output driver. When enabled, the SQWE bit set to 1, the SQW/OUT pin outputs one of four square-wave frequencies (1Hz, 4 kHz, 8 kHz, and 32 kHz). This is also an open drain and requires an external pull-up resistor. It requires the application of either VCC or Vb at to operate SQW/OUT, with an allowable pull-up voltage of 5.5V and can be left floating, if not used.

Pin 8: Primary power supply. When the voltage is applied within normal limits, the device is fully accessible and data can be written and read. When a backup supply is connected to the device and VCC is below VTP, read and writes are inhibited. However, at low voltages, the timekeeping function still functions.

Features 

1. This is the DS1307 Real Time Clock developed by one of our designers.
2. Two-wire I2C interface.
3. Hour: Minutes: Seconds AM/PM.
4. Day Month, Date – Year.
5. DS1307 based RTC with LIR2032 battery (Battery include).
6. 1Hz output pin.
7. Consumes less than 500nA in battery backup mode with oscillator running
8. Available in 8-pin DIP or SOIC
9. Underwriters Laboratory (UL) recognized
10. Real-time clock (RTC) counts seconds, minutes, hours, date of the month, month, day of the week, and year with leap-year compensation valid up to 2100
11. 56-byte non-volatile RAM for data storage
12. 56 Bytes of Non-volatile memory available to the user.

Usage/Application	Temperature Measurement
Accuracy	0.5 DegreeC
Dimensions	15.2 x 10.2 x 2.8 cm; 40 Grams
Temperature	-40+125 DegreeC
Working voltage	3.3 V

A temperature sensor is an electronic device that measures temperature and converts it into a readable electrical signal. It works by utilizing materials whose physical properties, like electrical resistance or voltage, change predictably with temperature.

Max power dissipation	200 mW
Max voltage at 0 lux	250 V
Peak wavelength	560 nm
Min. resistance at 10lux	10 k Ohm
Max. resistance at 10lux	20 kOhm
Typ. resistance at 100lux	1 - 5 KOhm
(Dark) resistance after 1 sec	1.7 M Ohm
(Dark) resistance after 5 sec	2 MOhm

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Axis	3 Axis
Measuring Range	+/-3 g
Output Type	I2C
Mounting Style	PCB Mount
Supply Voltage	3-5 V DC
Sensor Type	MEMS
Part Number	ADXL335
OperaƟng Temperature	-40 to 85 Deg C

The ADXL335 is a small, thin, low power, complete 3-axis accelerometer with signal conditioned voltage outputs. The product measures acceleration with a minimum full-scale range of ±3 g. It can measure the static acceleration of gravity in tilt-sensing applications, as well as dynamic acceleration resulting from motion, shock, or vibration. This breakout board comes with an on-board voltage regulator and works at 5V.

Specifications:

• Three-axis magnetic field accelerometer module.
• Interface: Analog quantity output.
• impact or vibration acceleration in dynamic
• Compact size, low power supply.
• Used for game systems, mobile devices, etc.
• Operating Temperature: -40’C~ +85’C
• Dimension: 0.59 in x 0.59 in x 0.43 in (1.5 cm x 1.5 cm x 1.1 cm)
• Weight : 5 gm
• Build in Logic level converter for I2C
• Designed for 5V logic level
• All sensors connected to the I2C bus
• Free-Fall Detection

Applications:

• FPV, RC and Robots systems
• GPS navigation systems
• Impact recognition and logging
• Gaming and virtual reality input devices
• Motion-activated functions
• Intelligent power saving for handheld devices
• Vibration monitoring and compensation
• Free-fall detection
• 6D-orientation detection.

Package Include:

• 1 X ADXL335 3-axis Analog Output Accelerometer Module angular transducer 3v-5v.