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HC-11, Puerto Serial Inalambrico, Alcance 40 m, UART |
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Precio por unidad (Pieza):
$8.000
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HC-11, Puerto Serial Inalambrico, Alcance 40 m, UART
1:3.4mA the silent current ultra low power consumption.
2: distance, use the distance 1~40m. (Less than 1m, the module does not work).
3 support for 3.3V~5V voltage
4 supported serial passthrough mode, replace the serial lines (half duplex)
5 you can set the frequency, and dozens of other instructions, automatic filtering
6: module size:27.8mm×14.4mm×4mm.
7 suitable for network design
10:Module support for software upgrade. (We offer our customers software updates)
Flat land or sea test range 100M in the wilderness.There are few vehicles on the road and trees and lamp posts 75 meter test distance.In a variety of building straight line distance is 40 meters above the ground on the first floor, indoors you can override the set home. Too close to be a signal saturation, to over 1 m.
433MHz wireless, open channels, serial passthrough. -Many, many-to-one, many-to-many communication. Five-foot pin, easy to use.
A: power, 3.3V to 5V. (Early version is 3.3V)
II:.
Three: RX (TTL)
Four: TX (TTL)
Five: the configuration PIN. Loft meets.
Default factory baud rate: 9600, modules to each other. When wired the same.
VI: 2400,4800 baud rate, on STC single-chip wireless remote upgrade and download the program.
Introduction to modules
Module role is instead of a serial connection between two devices wire, for wireless data transfer. For example, with two single-chip modules, respectively,As long as the string mouth receiving and dispatching operation, Monolithic without any control on the module. This convenient reality wireless communications.
Module is generally used in pairs, withHalf-duplex modeTransmit data. Two pairs of modules, and communication channels must be set to the baud rate the same. If there is more than one module, channel setting will be necessary, because the number of channels between different modules, data is passthrough.
Later in this document some of the module using the connection diagrams.
Wireless serial interface modules, the default settings are: communication baud rate9600, Wireless communication channels001. Users can be changed to other values (see instructions). By first pulling down5PIN and then steps, restore the default baud rate9600And TV channel001.
Modules are divided into 4 serial passthrough mode, respectively, represented by FU1~FU4, using AT commands to switch between different modes.(Switch AT directives AT the instruction see Introduction)
Note:Different module is a serial passthrough mode cannot communicate with each other!
1:FU1 mode
The default delivery mode, fully compatible with previous versions.
2:FU2 mode
This model of free( Means to send and receive serial data)Current average 80uA,But delay much longer,Transmission delay close 400mS. Use this mode when the serial port baud rate selectable4800.2400.1200. Because of the long delay,When sending serial data to the module when,Once Can only at best245 Bytes of data.
Current consumption low,Suitable for low-power applications.
3:FU3 mode
Propagation delay is reduced to less than 8MS,Corresponding power consumption also increased slightly.
4:FU4 mode
Distances lengthen, baud rate, the lower the transmission distance, the longerCorresponding latency also increases slightly
4 serial passthrough mode parameters
Note: the loop delay measurement refers to TX and RX pins shorted module, serial data to another module, start sending serial data to another module TX pin appears to return data for that period of time. |
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