TXD : Serial port, 3.3V TTL Level.
RXD : Serial port to receive, 3.3V TTL Level.
CTS : Serial flow control is not supported.
RTS : Serial flow control is not supported.
DC : Simulation, gramming clock pin.
DD : Simulation, data burning feet.
RST : Module reset pin is required not less than 5ms LOW reset.
VCC : Module supply pins required DC 3.3V The power supply current is not less than 100mA .
GND : Module common ground.
led : LED module output pin, high output, then led Please series resistor.
When the host is not a slave address recorded light per second 100ms ;
Recording machine from the host address, per light 900ms ;
Each slave 2 Sec On 1 second.
After connection, led Always.
KEY : Input pin, internal pull-down. This feet high, clear the record for the host address from the machine.
PIO : Extensions for setting the module master-slave mode, the default internal pull-up resistor from the machine; external pull-down resistor connected 1K To the ground, as the host.
Currently only supports 9600bps Communication is not supported AT instruction. Host, when communications pass through the machine from, have a certain time interval between packets. For example, the packet length 500 Bytes, the transmission time interval between packets can be set to not less than 600ms . Otherwise, you may lose data.
|Cash on Delivery||No|