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This tiny Flame sensor infrared receiver module ignition source detection module is Arduino compatible can use to detect flame or wavelength of the light source within 760nm~1100nm also useful for Lighter flame detect at the distance 80cm. Greater the flame, farther the test distance.It has the Detect angle of 60 degrees and very sensitive to flame spectrum. It produces the one channel output signal at D0 terminal for further processing like an alarm system or any switching system. The sensitivity is adjustable with the help of blue potentiometer given on the board.
This module could modulate your voice on the FM radio wave(70-108 MHz). And anyone who has a radio device could receive it. We build everything on this module, which makes it very easy to build a tiny radio station. We also reate library for Arduino to work with this module
Brand new Support 3.3V, 5V chipset FT232RL USB power has over current protection, using 500MA self-restore fuse RXD or TXD transceiver communication indicator Pin definition: DTR,RXD,TX,VCC,CTS,GND Pitch: 2.54mm Module size: 36mm(length)*17.5mm(width) FTDI DRIVER: Download FTDI driver to use the Module.
High Quality FR-4 Double Side Dot Matrix PCB, 5x7cm, Dual Side Plated Through Holes PCB, General Purpose Dot Matrix PCB, Glass Fiber Prototype PCB, Perforated Board, Printed Circuit Board, Small Size PCB, Tinned Universal Breadboard, Universal PCB Board, Calcutta Electronics lowest Price Online store
Product Description:
Infrared sensor module is based on infrared technology, automatic control products. High sensitivity, high reliability, low power consumption, low voltage operation mode. Widely used in various auto-sensing electrical equipment, especially for battery-powered automatic control products.
To setup Wireless Serial Communication, HC-05 Bluetooth Module is most demanding and popular due to its low price and extremely high features.This module can be used in Master or Slave Mode and easy switchable between these two modes, By default Slave mode is configured.
Modes can be changed using AT Commands.The slave mode in HC-05 cannot initiate a connection to another Bluetooth device, but can accept connections.Master mode can initiate a connection to other devices.
This Bluetooth module can easily achieve serial wireless data transmission. Its operating frequency is among the most popular 2.4GHz ISM frequency band (i.e. Industrial, scientific and medical). It adopts Bluetooth 2.0+EDR standard. In Bluetooth 2.0, signal transmit time of different devices stands at a 0.5 seconds interval so that the workload of bluetooth chip can be reduced substantially and more sleeping time can be saved for bluetooth. This module is set with serial interface, which is easy to use and simplifies the overall design/development cycle.
HR202 is a new kind of humidity-sensitive resistor made from organic macromolecule materials, it can be used in occasions like: hospitals, storage, workshop, textile industry, tobaccos, pharmaceutical field, meteorology, etc.
Features:
IIC/I2C/TWI/SPI Serial Interface. As the pin resources of Arduino controller is limited, you may not be able to use normal LCD shield after connecting a certain quantity of sensors or SD card. However, with this I2C interface module, you will be able to realize data display with only 2 wires.
2-Channel 5V Relay Module With optocoupler For arduino & other 
ESP 01 / ESP8266 Programmer CH340G Chip USB WiFi Wireless UART GPIO0 
alligator crocodile clips set 1 pair red & black 
