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Product Description :

This L9110 Fan Module Fire Fighting Robot for Arduino controls the rotation direction of the motor, hence the fan. Designed with the mounting hole, compatible with servo motor control.

The module bows out the flame of light in the 20cm distance. It is an essential part of firefighting robot development.

It equips quality and high-efficiency propeller.

Connections

1. VCC ↔ 5V,
2. GND ↔ GND,
3. INA ↔ 9,
4. INB ↔ 8,

Package Includes:

1 x L9110 Fan Module

1 x Propeller set

Module with antenna, mini size with strong signal. EEPROM save the configuration parameter data when power down. With data backup battery. With LED signal lights. Compatible with various flight control modules. Specification: Model: GY-GPS6MV2. With ceramic antenna. With LED signal indicator lamp. Power supply: 3-5V. The default baud rate: 9600. Compatible with different flight controller module. Size: Approx. 2.5cm x 3.5cm /0.98 x 1.38inch

This is RF Transmitter Receiver Module 315MHz Wireless Link Kit For Arduino.

This wireless transmitter and receiver pair operates at 315Mhz. They can easily fit into a breadboard and work well with microcontrollers to create a very simple wireleReceiving frequency (MHz)ss data link. Since these are only transmitters, they will only work communicating data one-way, you would need two pairs (of different frequencies) to act as a transmitter/receiver pair.

This Radio Transmitter & Receiver pair is perfectly matched to allow you to control items from a distance up to 500 feet wirelessly! Connect the transmitter to your Arduino, Raspberry Pi or other microcontroller and the receiver to whatever you’d like to control.

Both the transmitter and receiver are in tune to the same Radio Frequency so that when the transmitter emits a signal, the receiver will hear it wirelessly. Great for easy and simple wireless control! Arduino & Raspberry Pi 2 / B / B / A Compatible!

The ESP32 LoRa SX1278 0.96 Inch Blue OLED Display BT WiFi Module for Arduino, this series is the new development of the cost-effective networking program.

The main chip using Lexin ESP32, Tensilica LX6 dual-core processor, clocked at 240MHz, computing power up to 600DMIPS, chip built-in 520 KB SRAM, 802.11 b / g / N HT40 Wi-Fi transceiver, baseband, protocol stack, and LWIP, integrated dual-mode Bluetooth (traditional Bluetooth and BLE low power Bluetooth).

Features :

• Ultra-thin design & adhesive backing provides easy integration to any project
• Excellent price-performance ratio
• Easy communication with any microcontroller
• 5 pins 2.54mm pitch connector, 4x 4type 16 keys
• Sticker can peel off for adhesive mounting
• Used widely in industrial and home electronic equipments, instrument, etc
• This allows a microcontroller to ‘scan’ the 8 output pins to see which of the 16 buttons is being pressed

The greenhouse Effect” is melting the Earth’s ice core every minute and creating dangerous icebergs. By knowing the exact concentration of CO2(Carbon Dioxide), we can do something to reduce the CO2 and to protect our Earth. Here is the Arduino-based CO2 sensor designed by DFRobot’s lovely engineer. This is the first CO2 sensor in the Arduino market.  The output voltage of the module falls as the concentration of CO2 increases. The potentiometer onboard is designed to set the threshold of voltage. As long as the CO2 concentration is high enough (the voltage is lower than the threshold),  a digital signal (ON/OFF) will be released.

It has an MG-811 sensor module which is highly sensitive to CO2 and less sensitive to alcohol and CO, low humidity & temperature dependency.  The onboard heating circuit brings the best temperature for the sensor to function. Internal power boosting to 6V for heating sensor best performance. This sensor has an onboard conditioning circuit for amplifying the output signal.

Features:

1. Good sensitivity and selectivity to CO2
2. Low humidity and temperature dependency
3. Long stability and reproducibility

Specifications:

1. Heating Voltage: 6.0±0.1 V
2. Heating Resistor: 30.0±5%Ω
3. Heating Current: at 200mA
4. Heating Power: 1200mW
5. Operating Temperature: 20-50
6. Size:32x42mm (1.26×1.65″)

Package Includes:

1 x DFRobot Gravity Analog CO2 Gas Sensor For Arduino (MG-811 Sensor)

The analog gas sensor – MQ3 is used in gas leakage detecting equipment in consumer and industry markets, this sensor is suitable for detecting LPG i-butane, propane, methane, alcohol, hydrogen, smoke. It has a high sensitivity and fast response time. And the sensitivity can be adjusted by the potentiometer

Features:

1. Wide detecting scope
2. Fast response and High sensitivity
3. Stable and long life
4. Simple drive circuit

Specification:

1. Power supply needs: 5V
2. Interface type: Analog
3. Wide detecting scope
4. Fast response and High sensitivity
5. Simple drive circuit
6. Stable and long life
7. Size: 36.4×26.6mm

Packages Includes:

1 x DFRobot Gravity Analog Alcohol Sensor (MQ3) For Arduino

• Can Detect Ambient Humidity And Temperature Sensor Dht11
• Humidity Measuring Range: 20%-95% (Range 0-50 Degrees) And Humidity Measurement Error: -5% Temperature Measurement Range: 0-50 Degree Temperature Measurement Error: -2 Operating Voltage 3.3v-5v
• Output Digital Output Fixed Bolts Holes, Is Easy To Install Small Board Pcb Dimensions: 3.2cm*1.4cm
• Power Led (Red) Vcc Add-Ins 3.3v-5v Gnd External Gnd , Do Small-Plate Switch Digital Output Interface Connect Monolithic Integrated Circuit Io Mouth

Specifications : 

• Voltage: 3 to 5V power
• Temperature readings: ±2°C
• Current max: 2.5mA
• Item Weight: ‎10 g

• 1 x Xcluma DHT11 Digital Relative Humidity & Temperature Sensor Module for Arduino

The DHT11 is a basic, ultra 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).

Its 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.

Specifications : 

• Voltage: 3 to 5V power
• Temperature readings: ±2°C
• Current max: 2.5mA
• Item Weight: ‎10 g

Features : 

• Low cost, 2.5mA max current use during conversion (while requesting data)
• 3 to 5V power and I/O, Body size 15.5mm x 12mm x 5.5mm
• Good for 20-80% humidity readings with 5% accuracy
• Good for 0-50°C temperature readings ±2°C accuracy
• No more than 1 Hz sampling rate (once every second), 4 pins with Approximate 0.1" spacing

• 1 x DHT-11 Digital Temperature And Humidity Sensor for Arduino Raspberry Pi

This is a simple to use Arduino motion sensor. Power it up and wait 1-2 seconds for the sensor to get a snapshot of the still room. If anything moves after that period, the ‘alarm’ pin will go low. This sensor checks for infrared heat in its detecting angle. The human body, pets, and several other things emit energy that the sensor is looking for, it compares with the snapshot, and if there is a recent change it triggers.

Get on with your Home alarm security audit gear and experiment with this sensor to get a better understanding of its efficiency and working method. Infrared motion detectors are common all around the world for many different appliances. It’s great for an Arduino or home automation project that requires automated motion feedback. Commonly found on automatic trigger light systems, where lights are ON when someone is in range and OFF when no one is around. Save power or trigger other actuators like a door opener or pet feeder.

• Low power consumption
• Compact size
• Cost-effective
• Adjustable sensitivity

• 1 x Digital infrared Motion Sensor
• 1 x Digital Sensor Cable

This is a PIR (passive infrared motion) sensor designed to work with Arduino and Raspberry Pi. It allows you to sense motion, it is commonly used to detect whether a human has moved in or out of the sensor’s range. They are small, inexpensive, low-power, easy to use, and don’t wear out. For that reason, they are commonly found in appliances and gadgets used in homes or businesses. They are often referred to as PIR, “Passive Infrared”, “Pyroelectric”, or “IR motion” sensors.

• Low power consumption
• Compact size
• Cost-effective
• Adjustable sensitivity

• 1 x Gravity: Digital PIR Sensor
• 1 x Gravity: Digital Cable

This is an Analog Sound Sensor Microphone Module for Arduino. Some Applications like interactive voice switch and loudness level indicator is very suited for this module.

• Detectable sound signal size
• Built-in filter-rectifier circuit, DC signal output
• Good sensitivity, built-in amplifier circuit, adjustable gain
• Voltage signal for sound intensity can be obtained by AD conversion
• Analog voltage signal output, signal amplitude VCC/2
• Compatible for Arduino sensor interface

• 1 x Analog Sound Sensor Microphone Module for Arduino

Sound Detection Module Sensor for Intelligent Vehicle Compatible With Arduino is a Single channel signal output Sensor. The output is effective to the low-level sound signal with good fidelity, When there is sound, outputs low level and signal light.

It can be used for Acoustic control light, give sound and light alarm working with the Photosensitive sensor, and sound control, sound detect. (The Maximum induction distance is 0.5M)

Note: This sensor only recognizes the availability of sound (vibration principle) cannot identify the size of the sound or the specific frequencies of sound.

• Uses LM393, Electret condenser microphone
• Signal output Indication
• Single channel signal output
• The output effective signal is low level
• Can detect the intensity of the sound environment
• With the retaining bolt hole, convenient installation

• 1 x Sound Detection Module Sensor

Speak (Voice) Recognition Module V3 compatible with Arduino is a compact and easy-control speaking recognition board.

Speak (Voice) Recognition Module V3 product is a speaker-dependent voice recognition module. It supports up to 80 voice commands in all. Max 7 voice commands could work at the same time. Any sound could be trained as the command. Users need to train the module first before let it recognizing any voice command.

This board has 2 controlling ways: Serial Port (full function), General Input Pins (part of a function). General Output Pins on the board could generate several kinds of waves while the corresponding voice command was recognized.

What are the updated features?

We have Voice Recognition module V2 and it supports 15 commands in all and only 5 commands at the same time. On V2, voice commands are separated into 3 groups while you training it. And only one group (5 commands) could be imported into Recognizer. It means only 5 voice commands are effective at the same time.

On V3, voice commands are stored in one large group like a library. Any 7 voice commands in the library could be imported into recognizer. It means 7 commands are effective at the same time. 

• Support a maximum of 80 voice commands, with each voice 1500ms (one or two words speaking)
• Maximum 7 voice commands effectively at the same time
• Arduino library is supplied
• User-control General Pin Output
• Analog Interface: 3.5 mm mono-channel microphone connector  microphone pin interface

• 1 x Voice Recognition Module V3
• 1 x Microphone