2017년 2월 19일 일요일

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

Revision	Descriptions	Release
v0.9b	Initial public release	Nov 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

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

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.

Happy hacking

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

Item	Min	Typical	Max	Unit
Working Voltage	3.0	5.0	12.0	VDC
Current	3	/	10	mA
Work Mode	ASK			/
Transmit Power(Max)	15			mW
Working Distance	40	/	100	m

Receiver Module

Item	Typical	Unit
Working Voltage	5	VDC
Quiescent Current	5	mA
Receiver Sensitivity	-103	dBm
Operating frequency	315	MHz

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

Revision	Descriptions	Release
v0.9b	Initial public release	03,Oct,2011

Resources

Help us make it better

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.

Happy hacking

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

Weight	165 g
Output voltage	3.6V
Battery Capacity	300mA
Maximum working pressure	1.75 MPa
Working pressure	0~1.75MPa
Working temperature	0~110°C
Maximum	30mins at 110 °C
Recommend flow rate range	1.5~20 l/min(Pressure 0.05-0.2mpa)
Installation Method	direction of arrow
Material	nylon/glass fiber,Polyformaldehyde
Size of the input and output openings	0.8inch

Mechanic Dimensions

Usage

Hardware Installation

Help us make it better

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.

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 voltage	Receiver(3-5V), Transmitter(3-9V)
Working current	≤2.5mA(5.0VDC)
principle of operation	Superhet（VCO, PLL）
Modulation	OOK/ASK
Working band	433.92MHz (customized service available)
Bandwidth	1.5MHz
Sensitivity	-105dBm (50Ω)
Rate	＜5Kbps
Decoding form	PT2272
Antenna length	18cm
Transmission range	2 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

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.

Happy hacking

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

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.

Happy hacking

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

PET	package
Typical peak power	0.935W
Voltage at peak power	5.5v
Current at peak power	170mA
Length	100 mm
Width	75 mm
Depth	1.5 mm
Weight	33g
Efficiency	15.5%
Wire diameter	1.5mm
connector	2.0mm JST

Help us make it better

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.

Happy hacking

2017년 2월 19일 일요일

315Mhz Wireless car key fob with key chain

Introduction

Features

FAQ

Version Tracker

Help us make it better

315Mhz RF link kit

Introduction

Specification

Usage

Resources

Help us make it better

315MHz Simple RF Link Kit

Introduction

Features

Specification

Transmitter Module

Receiver Module

Application Ideas

Usage

Version Tracker

Resources

Help us make it better

3.6V Micro hydro generator

Introduction

Specification

Mechanic Dimensions

Usage

Help us make it better

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

Introduction

Application Ideas

Schematics

Specifications

Key Specifications

Usage

Resources

Help us make it better

2.5W Solar Panel 116*160

Introduction

Specification

Help us make it better

1w Solar Panel 80*100

Introduction

Key Specification

See Also

Help us make it better

Search

Archive