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This is NRF24L01 2.4GHz Antenna Wireless Transceiver Module. The nRF24L01 is a highly integrated, ultra-low power (ULP) 2Mbps RF transceiver IC for the 2.4GHz ISM (Industrial, Scientific, and Medical) band. With peak RX/TX currents lower than 14mA, a sub 26A power down mode, advanced power management, and a 1.9 to 3.6V supply range, the nRF24L01 provides a true ULP solution enabling months to years of battery life when running on coin cells or AA/AAA batteries. These RF modules are very popular among the Arduino tinkerers. The nRF24L01 is used on a wide variety of applications that require wireless control. They are transceivers which this means that each module can transmit and receive data.
Photoelectric sensors are electronic devices capable of detecting the approximation, passage and presence of metallic materials or not, through emission and reception of infrared light provided they are located within the distance of actuation of the sensor. The detection of the photoelectric sensor occurs without physical contact between the sensor and the trigger because it has no moving parts subject to mechanical wear and thus increase the life of the equipment. The Photoelectric Sensor price base on the three operating principles Diffuse, Retroreflective, Barrier. Photoelectric sensor price model G18 with plastic housing has tubular shape with 18mm diameter (M18) with cable type or connector depending on type (diffuse, reflective or barrier) has sensing distances of 10, 30 cm, 2 and 5 m. Photoelectric sensor price has electrical configuration type NPN or PNP contacts normally open (NA), normally closed (NF) or (NA + NF) and connection with 2 or 4 pins.
Piezo Pack of 5 Large Pickups 45mm Attach the round disc to the object that will be knocked on such as a door and measure the voltage across the two wires. Piezo elements can also produce sound when a voltage is applied across them. They convert between electricity and vibration in both ways; Vibration applied at the round end can be detected as a voltage across the wire leads and inversely, the voltage applied across the wire leads causes the round end to vibrate.
PR12 4DN Autonics PR12-4DN Inductive Proximity Sensor – 4mm is the most common and affordable solution for no-touch object detection. The most commonly-used proximity sensor is the inductive type, which generates an electromagnetic field to sense metal objects passing close to its face. This is usually the easiest sensing technology to apply in applications where the metal object to be detected is within an inch or two of the sensor face. Note that the standard detecting distance is based on a standard shape approaching the sensor in a standard way. The real detecting distance will vary depending on the shape, thickness, and type of metal being detected and will in general be between 70 to 80% of the standard distance.
| Sensing distance | 1.5mm |
| Installation | Shield(flush) |
| Standard sensing target | 8×8×1mm(iron) |
| Response frequency | 1.5kHz |
| Current specification | Current consumption: Max. 10mA |
| Control output | PNP Normally Open |
| Material | Brass(nickel plated) |
| Cable Standard/material | Standard cable |
| Body length | Standard type |
| Weight | Approx. 64g (approx. 52g) |
Proximity Sensor LM12 3002 NA switch is composed of three parts: oscillator, switch circuit and magnified output circuit. The oscillator will generate an alternating electric field. When hemetal object approaches this electric field and reaches the induction distance, whirlpool will generate in metal object, resulting in attenuation of vibration and then stop. The change of vibration and stop of oscillator is treated by begird stage magnified circuit and converted to switching sign, triggering driving con-contact detection.
Operating Voltage: 80–260V AC
Measurement Current Range: 0.02–100A
Power Range: 0.5W–22,000W
Energy Range: 0–999kWh
Frequency Range: 45–65Hz
Power Factor Range: 0.00–1.00
Measurement Accuracy: Class 1.0
Nominal Power: 100A / 22000W
This sensor module has 8 IR LED/phototransistor pairs mounted, making it a great detector for a line-following robot. Pairs of LEDs are arranged in series to halve current consumption, and a MOSFET allows the LEDs to be turned off for additional sensing or power-savings options. Each sensor provides a separate analog voltage output.
Transmitter :
So this module will transmit up to 90m in open area.
Receiver :
This is the SMD RGB LED Common Cathode Module, These module has 3 separate LEDs the Red, Green and Blue which can be individually driven by applying a voltage to the appropriate module pin this example code is uses the Arduino analogWrite(PWM) function to cycle through the full possible output colors this smd led module is capable of producing a rainbow color scheme.
Large 20mm LDR Photoresistor Sensor Photo Sensor 
Character LCD 16X2 Blue color 
Load Cell 20Kg 
RGB SMD MODULE FULL COLOR 
RF 315/433 Transmitter/Receiver Module 
