DHT22 Digital Temperature and Humidity Sensor Module

If you are wandering to build a device that detects temperature and humidity from the atmosphere, then This sensor is needed for you. you can Purchase this sensor from Robu.in at a reasonable price.

The DHT22 Digital Temperature and Humidity Sensor Module AM2302 is a basic, low-cost digital temperature and humidity sensor. It uses a capacitive humidity sensor and a thermistor to measure the surrounding air and spits out a digital signal on the data pin (no analog input pins needed).

It’s fairly simple to use but requires careful timing to grab data. The only real downside of this sensor is you can only get new data from it once every 2 seconds, so when using our library, sensor readings can be up to 2 seconds old.

Features :

1. High precision
2. Capacitive type
3. Full range temperature compensated
4. Relative humidity and temperature measurement
5. Calibrated digital signal
6. Outstanding long-term stability
7. Extra components not needed
8. Long transmission distance
9. Low power consumption
10. 4 pins packaged and fully interchangeable

Package Includes :

1 x DHT22 Digital Temperature and Humidity Sensor Module AM2302

The TTP223 Touch Key Module is based on a touch-sensing IC (TTP223) capacitive touch switch module. A capacitive touch sensor module based on the dedicated TTP223 touch sensor IC. The module provides a single integrated touch sensing area of 11 x 10.5mm with a sensor range of ~5mm.

An onboard LED will give a visual indication of when the sensor is triggered. When triggered the output of the module will switch from its idle low state to high (default operation). Solder jumpers allow for reconfiguring its mode of operation to be either active low or toggle output.

TTP223 Capacitive Touch Sensor Module. The TTP223 is a touchpad detector IC replicating a single tactile button.

The TTP223 is a touchpad detector IC replicating a single tactile button. This touch detection IC is designed for replacing traditional direct button key with diverse pad size.

Trigger-setting mode: (1- > Short ; 0- > No Short)

AB=00: No-lock High TTL level output;
AB=01: Self-lock High TTL level output;
AB=10: No-lock Low TTL level output;
AB=11: Self-lock Low TTL level output;

Connection Diagram:

Features :

1. Supports momentary or latching/toggle modes.
2. Supports Active High or Active Low output signal modes.
3. Dimensions : 15mm x 11mm.
4. Input Voltage : 2 Volt – 5.5 Volts DC.
5. The response time max ~ 60mS in fast mode, ~220mS at low power mode @VDD=3V.
6. Sensitivity can adjust by the capacitance(0~50pF).
7. Have two kinds of sampling length by pad option(SLRFTB pin).
8. Stable touching detection of the human body for replacing traditional direct switch key.
9. Provides Fast mode and Low Power mode selection by pad option(LPMB pin).
10. Provides direct mode、toggle mode by pad option(TOG pin).
11. Open drain mode by bonding option, OPDO pin is open drain output, Q pin is CMOS output.
12. All output modes can be selected active high or active low by pad option(AHLB pin).
13. Have the maximum on time 100sec by pad option(MOTB pin).
14. Have external power-on reset pin(RST pin).
15. After power-on have about 0.5sec stable-time, during the time do not touch the keypad, and the function is disabled.
16. Auto calibration.
17. Re-calibration period is about 4.0 sec when the key has not be touched.

Package Includes :

2 x TTP223 TOUCH KEY MODULE

The DHT11 Temperature And Humidity Sensor Module with LED is a small humidity and temperature sensor that you can connect to your Arduino and get readings for temperature and humidity in the environment.

Features:

• DHT11 sensor with PCB and LED indicator along with cable; 3 to 5V power and I/O, 4 pins with 0.1″ spacing
• The board has pre-built 4.7K or 10K resistor, which you will need to use as a pull-up from the data pin to VCC.
• 2.5mA max current use during conversion (while requesting data)
• Good for 20-80% humidity readings with 5% accuracy
• Good for 0-50°C temperature readings ±2°C accuracy.

Package Includes:

• 1 x DHT11 Temperature And Humidity Sensor Module.
• 3 x Female to Female Connecting cable.

The Water Level Depth Detection Sensor for Arduino has Operating voltage DC3-5V and Operating current less than 20mA. The Sensor is the Analog type which produces analog output signals according to the water pressure with its Detection Area of 40x16mm.

The Water Level Sensor is an easy-to-use and cost-effective with high level/drop recognition sensor by having a series of parallel wires exposed traces measure droplets/water volume in order to determine the water level.

Easy to complete water to analog signal conversion and output analog values can be directly read Arduino development board to achieve the level alarm effect.

Package Includes :

1 x Water Level Sensor Depth of Detection Water Sensor for Arduino

This is TCRT 5000 Dual Channel Line Tracking sensor module.

This IR reflective sensor Module used TCRT5000 IR Sensor to detect color and distance. This sensor module consists of an IR transmitter & an IR receiver. IR Transmitter continuously emits IR signal which is then reflected by an obstacle and is then detected by the IR receiver.

TCRT5000 Infrared Reflective Sensor Module is often used in line following robots, object sorting Robots because this module can sense if a surface is white or black. The measuring distance range from 1mm to 8mm and the central point is about 2.5mm.

Application :

1. Meter pulse data sampling
2. Fax paper shredders detection
3. Obstacle detection
4. Black and white line detection

Features :

1. Designed with the reflected infrared sensor, indicator light.
2. Built in a potentiometer for sensitivity control.
3. On-board LM393 voltage comparator chip and infrared sensing probe TCRT5000L
4. Onboard signal output instructions, the output is the highly effective signal at the same time, the indicator lamp light output signal can be directly and single-chip microcomputer IO connection & middot
5. Signal detection sensitivity can adjust
6. Reserve all the way more circuits (P3 voltage drawn)
7. Using the TCRT5000 infrared reflection sensor
8. Output form: digital switch output (0 and 1)
9. A fixed bolt hole, convenient installation.

Package Includes :