2017년 2월 19일 일요일

315Mhz Wireless car key fob with key chain



315Mhz Wireless car key fob with key chain

Introduction

http://www.seeedstudio.com/depot/images/large/product/carkey_LRG.jpg
This is a Wireless car key FOB with 4 buttons: Lock,unlock,mute and alarm on. A blue led will light on when any button were pressed. Use this FOB to communicate with Codec-Adaptive Wireless Relay for your remote control project.

Features


  • Frequency Range: High: 315.15MHZ Average: 315.025MHZ Low: 314.85MHZ
  • Modulation schemes: amplitude modulation (AM)
  • Data transfer rate: 625HZ
  • Output power: ≤ 12mW
  • Battery voltage: DC12V
  • Operating temperature: -30 ℃ ~ +85 ° C

FAQ

Here is the Wireless FAQ, people can go here to find questions and answers for this kind of products.

Version Tracker

RevisionDescriptionsRelease
v0.9bInitial public releaseNov 04, 2009

Help us make it better

Thank you for choosing Seeed. A couple of months ago we initiated a project to improve our documentation system. What you are looking at now is the first edition of the new documentation system. Comparing to the old one, here is the progresses that we made:
  • Replaced the old documentation system with a new one that was developed from Mkdocs, a more widely used and cooler tool to develop documentation system.
  • Integrated the documentation system with our official website, now you can go to Bazaar and other section like Forum and Community more conveniently.
  • Reviewed and rewrote documents for hundreds of products for the system’s first edition, and will continue migrate documents from old wiki to the new one.
An easy-to-use instruction is as important as the product itself. We are expecting this new system will improve your experience when using Seeed’s products. However since this is the first edition, there are still many things need to improve, if you have any suggestions or findings, you are most welcome to submit the amended version as our contributor or give us suggestions in the survey below, Please don’t forget to leave your email address so that we can reply.
Happy hacking

315Mhz RF link kit



315Mhz RF link kit

Introduction

The kit is consisted of transmitter and receiver, popular used for remote control.

Specification


  • Frequency: 315Mhz.
  • Modulation: ASK
  • Receiver Data Output: High - 1/2 Vcc, Low - 0.7v
  • Transmitter Input Voltage: 3-12V (high voltage = more transmitting power)

Usage


The popular link is like this: MCU -> Encoder -> Transmitter ------ Receiver -> Decoder -> MCU,
PT2262(Encoder) and PT2272(Decoder) are optional, their existence is to 1)avoid confusing when multiple RF links in range 2) isolate disturbance. You can integrate the encoding and decoding work to the MCUs on both side. Whenever there is no 315Mhz devices around, you may use it as direct cable connection.
Excuse for the documentation, we will work on them. Before that, please consult us for any details, we are happy to find the answer for you ^^ We tried them using the guide from Sparkfun, it’s compatible. The only difference is in package, of some excess GND pins.
More over, we will make more RF modules ourselves with different frequency and capacity. The next one in plan is based on cc1100 Please suggest us about your need :)

Resources


Help us make it better

Thank you for choosing Seeed. A couple of months ago we initiated a project to improve our documentation system. What you are looking at now is the first edition of the new documentation system. Comparing to the old one, here is the progresses that we made:
  • Replaced the old documentation system with a new one that was developed from Mkdocs, a more widely used and cooler tool to develop documentation system.
  • Integrated the documentation system with our official website, now you can go to Bazaar and other section like Forum and Community more conveniently.
  • Reviewed and rewrote documents for hundreds of products for the system’s first edition, and will continue migrate documents from old wiki to the new one.
An easy-to-use instruction is as important as the product itself. We are expecting this new system will improve your experience when using Seeed’s products. However since this is the first edition, there are still many things need to improve, if you have any suggestions or findings, you are most welcome to submit the amended version as our contributor or give us suggestions in the survey below, Please don’t forget to leave your email address so that we can reply.
Happy hacking

315MHz Simple RF Link Kit



315MHz Simple RF Link Kit

Introduction

This kit is used for one way wireless communication at a frequency of 315MHz and includes a transmitter module and a receiver module. The Grove configuration of this kit allows for around 40 meters of transmitting distance indoors, or around 100 meters outside.

Features


  • GROVE compatible interface.
  • Uses ASK (Amplitude Shift Keying) Modulation.
  • One way communication

Specification

Transmitter Module

ItemMinTypicalMaxUnit
Working Voltage3.05.012.0VDC
Current3/10mA
Work ModeASK/
Transmit Power(Max)15mW
Working Distance40/100m

Receiver Module

ItemTypicalUnit
Working Voltage5VDC
Quiescent Current5mA
Receiver Sensitivity-103dBm
Operating frequency315MHz

Application Ideas

  • Remote control
  • Remote automation
  • Alarm

Usage

The transmitter and receiver modules both rely on a single wire for communication. Though using the UART supplied by the Arduino platform can work, it is recommended, instead, to use the VirtualWire library which uses Amplitude Shift Keying for modulation which provides better communication.
Both the transmitter and receiver modules require three wires: Vcc, Ground, and signal. Both of pin 2 parts of the kit are not connected.
  • Connect the Transmitter module to Digital I/O 2 of the Grove_-_Base_Shield on the Arduino being used for transmission.
  • Connect the Receiver module to Digital I/O 2 of the Grove_-_Base_Shield on the receiving Arduino.
Note: The hardware installation can refer to the usage of the module Grove - 433MHz Simple RF Link Kit.
  • Download the File: VirtualWire library and unzip it into the libraries file of Arduino IDE by the path: ..\arduino-1.0\libraries. Please reference here.
  • Upload the below code for transmitter module:
#include <VirtualWire.h>

//Grove - 315(433) RF link kit Demo v1.0
//by :http://www.seeedstudio.com/
//connect the sent module to D2 to use
#include <VirtualWire.h>

int RF_TX_PIN = 2;

void setup()
{
    vw_set_tx_pin(RF_TX_PIN); // Setup transmit pin
    vw_setup(2000); // Transmission speed in bits per second.
}

void loop()
{
    const char *msg = "hello";
    vw_send((uint8_t *)msg, strlen(msg));  // Send 'hello' every 400ms.
    delay(400);

}
  • Upload the below code for receiver module:
//Grove - 315(433) RF link kit Demo v1.0
//by :http://www.seeedstudio.com/
//connect the receive module to D2 to use ..
#include <VirtualWire.h>

int RF_RX_PIN = 2;

void setup()
{
    Serial.begin(9600);
    Serial.println("setup");
    vw_set_rx_pin(RF_RX_PIN);  // Setup receive pin.
    vw_setup(2000); // Transmission speed in bits per second.
    vw_rx_start(); // Start the PLL receiver.
}

void loop()
{
    uint8_t buf[VW_MAX_MESSAGE_LEN];
    uint8_t buflen = VW_MAX_MESSAGE_LEN;
    if(vw_get_message(buf, &buflen)) // non-blocking I/O
    {
        int i;
        // Message with a good checksum received, dump HEX
        Serial.print("Got: ");
        for(i = 0; i < buflen; ++i)
        {
            Serial.print(buf[i], HEX);
            Serial.print(" ");
            //Serial.print(buf[i]);
        }
        Serial.println("");
    }
}
  • Open the serial monitor of receiver module to see the result.
This is just a simple transmitter and receiver instance as a reference.

Version Tracker

RevisionDescriptionsRelease
v0.9bInitial public release03,Oct,2011

Resources

Help us make it better

Thank you for choosing Seeed. A couple of months ago we initiated a project to improve our documentation system. What you are looking at now is the first edition of the new documentation system. Comparing to the old one, here is the progresses that we made:
  • Replaced the old documentation system with a new one that was developed from Mkdocs, a more widely used and cooler tool to develop documentation system.
  • Integrated the documentation system with our official website, now you can go to Bazaar and other section like Forum and Community more conveniently.
  • Reviewed and rewrote documents for hundreds of products for the system’s first edition, and will continue migrate documents from old wiki to the new one.
An easy-to-use instruction is as important as the product itself. We are expecting this new system will improve your experience when using Seeed’s products. However since this is the first edition, there are still many things need to improve, if you have any suggestions or findings, you are most welcome to submit the amended version as our contributor or give us suggestions in the survey below, Please don’t forget to leave your email address so that we can reply.
Happy hacking

3.6V Micro hydro generator



3.6V Micro hydro generator

Introduction

http://www.seeedstudio.com/depot/images/large/product/mhg_01_LRG.jpg
Micro hydro power is clean, renewable energy. Here is a G 1/2 micro hydro generator which can supply stably output voltage and output current with the help of one voltage stabilizing circuit and one rechargeable battery. We can install it at home to save household energy, like using spray shower to light LEDs etc.
Pressure and Flow diagram
Flow and Output voltage Diagram
Note
This module has added one voltage stabilizing circuit and one rechargeable battery, output voltage is stably 3.6v and output current is stably 300mA.
Flow and Output voltage Diagram

Specification


Weight165 g
Output voltage3.6V
Battery Capacity300mA
Maximum working pressure1.75 MPa
Working pressure0~1.75MPa
Working temperature0~110°C
Maximum30mins at 110 °C
Recommend flow rate range1.5~20 l/min(Pressure 0.05-0.2mpa)
Installation Methoddirection of arrow
Materialnylon/glass fiber,Polyformaldehyde
Size of the input and output openings0.8inch

Mechanic Dimensions


Usage


Hardware Installation

Help us make it better

Thank you for choosing Seeed. A couple of months ago we initiated a project to improve our documentation system. What you are looking at now is the first edition of the new documentation system. Comparing to the old one, here is the progresses that we made:
  • Replaced the old documentation system with a new one that was developed from Mkdocs, a more widely used and cooler tool to develop documentation system.
  • Integrated the documentation system with our official website, now you can go to Bazaar and other section like Forum and Community more conveniently.
  • Reviewed and rewrote documents for hundreds of products for the system’s first edition, and will continue migrate documents from old wiki to the new one.
An easy-to-use instruction is as important as the product itself. We are expecting this new system will improve your experience when using Seeed’s products. However since this is the first edition, there are still many things need to improve, if you have any suggestions or findings, you are most welcome to submit the amended version as our contributor or give us suggestions in the survey below, Please don’t forget to leave your email address so that we can reply.
Happy hacking

2KM Long Range RF link kits with encoder and decoder



2KM Long Range RF link kits w/ encoder and decoder

Introduction

This is a super long-range 433mhz RF link kit. It comes with VCO, PLL technology, steady frequency and super anti-jamming ability. You can directly use it with your projects, like wireless data transport, remote control, etc.

Application Ideas


  • Wireless switch
  • Remote transmission
  • Wireless control

Schematics


Specifications


Key Specifications

Working voltageReceiver(3-5V), Transmitter(3-9V)
Working current≤2.5mA(5.0VDC)
principle of operationSuperhet(VCO, PLL)
ModulationOOK/ASK
Working band433.92MHz (customized service available)
Bandwidth1.5MHz
Sensitivity-105dBm (50Ω)
Rate<5Kbps
Decoding formPT2272
Antenna length18cm
Transmission range2 km

Usage


Hardware connection Manual, RX(D0/D1/D2/D3) output voltage depends on the input voltage (VDD).
Note: Do not put RX module and TX module too close: this would prevent them to work. Make sure that the RX module and TX module are at least 1 meter away from each other.

Resources


Help us make it better

Thank you for choosing Seeed. A couple of months ago we initiated a project to improve our documentation system. What you are looking at now is the first edition of the new documentation system. Comparing to the old one, here is the progresses that we made:
  • Replaced the old documentation system with a new one that was developed from Mkdocs, a more widely used and cooler tool to develop documentation system.
  • Integrated the documentation system with our official website, now you can go to Bazaar and other section like Forum and Community more conveniently.
  • Reviewed and rewrote documents for hundreds of products for the system’s first edition, and will continue migrate documents from old wiki to the new one.
An easy-to-use instruction is as important as the product itself. We are expecting this new system will improve your experience when using Seeed’s products. However since this is the first edition, there are still many things need to improve, if you have any suggestions or findings, you are most welcome to submit the amended version as our contributor or give us suggestions in the survey below, Please don’t forget to leave your email address so that we can reply.
Happy hacking

2.5W Solar Panel 116*160



2.5W Solar Panel 116*160

Introduction

This is a custom solar panel, which mates directly with many of our development boards and has a high efficiency at 15%. Unit has a clear epoxy coating with hard-board backing. Robust sealing for out door applications!

Specification


  • PCB size : 1161601.5 mm
  • Monolithic : 9.57*156 mm
  • Efficiency : 15%
  • Voltage:5.5V;
  • Current:450mA
  • Power:2.5W
  • Connector: 2.0mm JST
  • Type:156 Two line;
  • PCB Material : all Glass fiber
  • PCB requirements : positive
  • Quality requirements :
    • flatness less than 0.1mm
    • clean, does not allow to have the scratch
    • take off paint the phenomenon, such as a hole does not allow to have the deviation
  • Note : tolerance Positive and negative 0.1mm
  • Name: PET laminated (116*160)
  • Arrangement:1*11(series)NO spacing posted artical black;

Help us make it better

Thank you for choosing Seeed. A couple of months ago we initiated a project to improve our documentation system. What you are looking at now is the first edition of the new documentation system. Comparing to the old one, here is the progresses that we made:
  • Replaced the old documentation system with a new one that was developed from Mkdocs, a more widely used and cooler tool to develop documentation system.
  • Integrated the documentation system with our official website, now you can go to Bazaar and other section like Forum and Community more conveniently.
  • Reviewed and rewrote documents for hundreds of products for the system’s first edition, and will continue migrate documents from old wiki to the new one.
An easy-to-use instruction is as important as the product itself. We are expecting this new system will improve your experience when using Seeed’s products. However since this is the first edition, there are still many things need to improve, if you have any suggestions or findings, you are most welcome to submit the amended version as our contributor or give us suggestions in the survey below, Please don’t forget to leave your email address so that we can reply.
Happy hacking

1w Solar Panel 80*100



1w Solar Panel 80*100

Introduction

This is a custom solar panel, which mates directly with many of our development boards and has a high efficiency at 15.5%. Unit has a clear epoxy coating with hard-board backing. Robust sealing for out door applications!

Key Specification

PETpackage
Typical peak power0.935W
Voltage at peak power5.5v
Current at peak power170mA
Length100 mm
Width75 mm
Depth1.5 mm
Weight33g
Efficiency15.5%
Wire diameter1.5mm
connector2.0mm JST

See Also

Help us make it better

Thank you for choosing Seeed. A couple of months ago we initiated a project to improve our documentation system. What you are looking at now is the first edition of the new documentation system. Comparing to the old one, here is the progresses that we made:
  • Replaced the old documentation system with a new one that was developed from Mkdocs, a more widely used and cooler tool to develop documentation system.
  • Integrated the documentation system with our official website, now you can go to Bazaar and other section like Forum and Community more conveniently.
  • Reviewed and rewrote documents for hundreds of products for the system’s first edition, and will continue migrate documents from old wiki to the new one.
An easy-to-use instruction is as important as the product itself. We are expecting this new system will improve your experience when using Seeed’s products. However since this is the first edition, there are still many things need to improve, if you have any suggestions or findings, you are most welcome to submit the amended version as our contributor or give us suggestions in the survey below, Please don’t forget to leave your email address so that we can reply.
Happy hacking