IR and RF Transmitter and Receivers
The 4 Channel Wireless Four Button RF Remote Control Transmitter Receiver Module with Non-Locking mode can be composed of a fixed code four radio receiver circuits, remote control of four four-bit data output code corresponding to the module, you can easily make up a wireless remote control receiver circuit.
They are widely applied in the majority home electronics enthusiasts, industrial remote control electronic product design and development can be very good as a single-chip signal input source, especially for students and colleges electronic circuit design, the graduate design of the remote control circuit portion.
- There are four buttons on the remote control and respectively correspond to the four data bits to the receiving board output pin D0, D1, D2, and D3.
- Press the buttons to transmit signals, the corresponding data bit is output high.
Caution: Take care while handling the receiver module, that the onboard copper coil (inductor) should be untouched. A little physical movement to the coil changes the inductance value which may cause the inappropriate circuit functioning
How it Works:
1. When a key is pressed, the IC is connected to power supply battery and it starts transmitting packets at 315 Mhz frequency consisting of its ID and Data byte which indicates which key was pressed. This information is used in remote control applications.
2. Each transmitter has a pre-programmed unique ID set during manufacturing and cannot change. The receiver board usually stores the transmitter ID in its memory before so the receiver only responds to known transmitter IDs for secure applications.
3. The RF part inside remote is SAW based 315 Mhz transmitter, which can receive by any 315 Mhz type ASK RF Receiver followed by decoder chip.
Note: By default, this remote control module comes with a Non-Locking mode.
This RF remote control comes in different operating Mode: a Non-locking Mode, a Self-Locking Mode, and an Interlocking Mode (Product included comes in Non-Locking Mode)
- Non-locking:
Output also has known jog output data pin output level is instantaneous and the transmitter and whether transmission corresponds; is useful to control similar to jogging. A remote control signal data pin is high, the signal disappears when the remote data foot immediately restored to the low level. For applications such as electric doors, electric door locks, and SCM docking requires only a high level of the circuit and other circuits and so on.
- Self-locking:
Here Data output pin enables the trigger to flip operating logic; data can keep as long as the successful reception of the corresponding level state change, until the next time the remote data changes. Self-locking independent of each other four, four simultaneous remote control, such as lighting control and the like.
- Interlocking:
The Output is anyway the road will be able to receive the signal remains high state corresponding received data in any other way is the return to the original state, only four interlockings turned all the way, practical applications such as electric fans position switch circuit.
Specifications and Features :
Transmitter Remote control:
- Modulation mode: ASK (Amplitude Modulation)
- Encoder types: fixed code
Decoding receiver board:
- Receiver Operating voltage: DC 5V
- Receiver sensitivity is: -98dB
- Leg 7 bits: VT, D3, D2, D1, D0, 5V and GND
- VT is a valid signal high output pin upon receiving a valid signal, the pin output high may also drive the relay
- Size: 7 x 22 x 41 mm
Pin Connection and Functions:
- VT output status indication
- D3 data output
- D2 data output
- D1 data output
- D0 data output
- 5V power supply positive
- GND power supply negative
- ANT connects the antenna terminal
Total of eight external receiver module interface. “5V” means a positive power supply, “D0, D1, D2, D3” represents the output, “GND” means the power supply is negative, “ANT” means connect the antenna terminal.
Far as the pro-distance requirements, then the best quarter-wavelength antenna, generally use a 50-ohm single wire, the length of the antenna is about 17cm.
Note: The remote control does not come with the battery due to Air shipping limitations you have to buy it separately.
Package Includes:
1 x Wireless Four-button RF remote control
1 x Super Regenerative receiver module
Features :
- RF center frequency of 865MHz to 869MHz (can be modified for other bands)
- Small 24mm x 36mmx3mm form factor. Can fit into almost anything.
- Standard UART interface with hardware flow-control (Clear-to-Send CTS) for long data packet handling
- Easy to integrate into current devices that support RS-485, RS-232, RS-422 or 3.3V TTL serial data
- Compatible to 3.3V power-supply and interface only.
- Integrated efficient PCB antenna
- Listen-before-talk and random back-off algorithm
- 16bit node address and 16bit network address
- Settable channels, baud-rate, air-data rate and RF transmit power
- Configurable parameters, signal-strength limit, ack timeout, network and point address
- In build trasnparent 128-bit AES encryption with configurable key
- Up to 2Kilometers outdoor open air node-to-node range
- Ultra low power Sleep Mode
- GND
- VCC 3.3V DC
- PROG
- TXD - module input
- RXD - module output
- CTS- clear to send module output
- Wireless telemetry for transmitting meter readings, sensor data
- Remote control applications with fast response requirements
- Wireless Home Networking applications
- Point-to-point and point-to-multipoint network topologies
- Wireless mouse, wireless keyboard and other wireless user interface devices
- Wireless data logging applications
- Audience response systems
- Smart Grid systems
- Home Automation Systems
Package Includes:
1 x WIRELESS RF SERIAL LINK 865-869MHZ 2KM RANGE
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!
Features :
Receiver module parameters
- Product Model: XY-MK-5V
- Operating voltage: DC5V
- Quiescent Current: 4mA
- Receiving frequency: 315MHz
- Receiver sensitivity: -105 dB
- Size: 30 x 14 x 7 mm
Transmitter module parameters
- Launch Distance: 20-200 meters (different voltage, different results)
- Operating voltage: 3.5-12V
- Dimensions: 19 x 19 mm
- Operating mode: AM
- Transfer rate: 4KB/S
- Transmitting power: 10mW
- Transmitting frequency: 315Mhz
- An external antenna: 25cm ordinary multi-core or single-core line
- Pinout from left a right: (DATA; VCC; GND)
Package Includes:
1 x RF Transmitter Receiver Module 315MHz Wireless Link Kit For Arduino
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