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Basic Four Channel Wireless Transmitter and ReceiverFor wireless remote control applications Click on picture for larger view
The KTGP418 and KRGP418 kits are designed to use a minimum of components to simplify construction and to reduce size and cost. These basic kits include the components needed to build a functioning wireless remote control system with only the addition of power sources and some wires. The kits do not include a battery connector, wall transformer, antenna or enclosure. Kits include a high quality FR4 epoxy glass, etched and drilled PC board with legends screened on top that show where each component is to be placed, RF transmitter or receiver module, encoder/decoder module and socket, voltage regulator, diode, capacitor. The boards have a solder mask on the bottom side that covers all interconnecting metal to help prevent solder shorts. Space is provided for the addition of an optional DIP switch for easy address selection and optional terminal blocks for ease of making and changing connections. Optional parts are available from electronic parts distributors. Four control bits can be sent individually or simultaneously by pulling transmitter inputs low. The KRGP418 receiver has selectable momentary or sequentially latched outputs. Outputs can both source and sink 25 milliamperes each to drive loads. The kits uses our TM1V RF transmitter module and RM1V or RM2 receiver module that operate at 418 MHz with a range of better than 300 feet. Thanks to these new modules the problems associated with building your own transmitter and receiver such as tuning by adjusting capacitors and inductors are things of the past. After assembling the kit you simply apply power to the transmitter which is SAW (Surface Acoustic Wave) based for accurate frequency control and attach a 6.7 inch antenna to send data. The same is done for the receiver which is a SAW based superhetrodyne having excellent stability and sensitivity. Absolutely no adjustments of any kind are required. The transmitter can be powered by a 6 to 12 volt battery and draws 1 microampere of standby current and an average of only 5.5 milliamperes during transmit for long battery life. The receiver can be powered by a battery or a 9 or 12 volt DC wall transformer. This design uses our ED4GP encoder/decoder that makes selectable momentary or latched outputs possible. See how to order for price and ordering information.
Visit our Related and Useful links to view or print data sheets on the devices used in this project and on other discrete and integrated circuits from major semiconductor manufacturers. |
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Copyright ? 2008 |