3pcs gt wireless

3Pcs HC-05 Wireless Bluetooth Serial Transceiver Module For Arduino Description: HC-05 could be setted to master or slave by user. HC-06 can only be master or slave which could be customized. Wiring(only need 4 wires): RX to RXD / TX to TXD / GND to GND / 3.6V to 6V Power: 3.3V Note: This module does not suitable for IOS system. Package included: 3 x HC-05 wireless bluetooth serial transceiver module

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3Pcs 1100 Meter Long Distance NRF24L01+PA+LNA Wireless Module With Antenna Desription: NRF24L01P + PA + LNA Division for the ultra-long-distance data transmission, specially developed high-power and high sensitivity wireless module 2.4G ISM band NRF24L01P + PA + LNA wireless module to work in the license-free that can be point-to-point applications or be composed of a star network. Digital transmission chip NRF24L01+ with the Division of Professional Design professional full two-way RF power amplifier high power PA and LNA chip, RF switches and band pass filters, makes effective communication distance greatly expand.   RF part, it has been done a lot of optimization matching debugging. The emission efficiency to achieve the highest harmonic minimum and make NRF24L01P + PA + LNA wireless module of RF interference to the external equipment reaches minimum, while not susceptible to interference from other devices. NRF24L01P + PA + LNA wireless module integration is extremely high, the size is 41mm x 15.5mm to make conveniently embedded. Package included: 3 x 1100 Meter Long Distance NRF24L01+PA+LNA Wireless Module With Antenna

3Pcs 1100 Meter Long Distance NRF24L01+PA+LNA Wireless Module Board With Antenna Desription: NRF24L01P + PA + LNA Division for the ultra-long-distance data transmission, specially developed high-power and high sensitivity wireless module 2.4G ISM band NRF24L01P + PA + LNA wireless module to work in the license-free that can be point-to-point applications or be composed of a star network. Digital transmission chip NRF24L01+ with the Division of Professional Design professional full two-way RF power amplifier high power PA and LNA chip, RF switches and band pass filters, makes effective communication distance greatly expand. RF part, it has been done a lot of optimization matching debugging. The emission efficiency to achieve the highest harmonic minimum and make NRF24L01P + PA + LNA wireless module of RF interference to the external equipment reaches minimum, while not susceptible to interference from other devices. NRF24L01P + PA + LNA wireless module integration is extremely high, the size is 41mm x 15.5mm to make conveniently embedded. Package included: 3 x 1100 Meter Long Distance NRF24L01+PA+LNA Wireless Module Board With Antenna

3Pcs HC-12 433 SI4463 Wireless Serial Module Remote 1000M With Antenna Note: HC-11 cannot communicate with the HC-12, they work independently, in pairs Features: Supply voltage: 3.2V~5.5V. (If the module you want to work long hours in the emission state, it is recommended that when the supply voltage exceeds 4.5V threaded a 1N4007 diode to prevent module built-in LDO heated) Default address range (open field test): About 600m (maximum communication distance adjustable reach 1000m, the baud rate is 5000bps) Default idle current: 16MA (In different working modes operating current is different) Module dimensions: 27.8 x 14.4 x 4mm Operating frequency range: 433.4-473.0MHz, up to 100 channels of communication The maximum transmit power: 100mW (settable) Module support software upgrade Default factory settings: Mode FU3, baud rate is 9600bps, communication channels CH001 (433.4M) Package included: 3 x HC-12 433 Serial module AT command set:   Module parameters, AT command set AT command is used to set the parameters of the function module and switching modules need to exit the setting mode after setting to take effect. Meanwhile, modify the parameters and functions, power-down is not lost.   Enter the command mode: The first entry mode - normal use (has the power) in the first 5-pin "SET" is set low; The second mode of entry - power, 5th pin "SET" again first set low on power. Both methods can make the module into AT command mode, release ("SET" pin is not connected low) to exit command mode. After the exit command mode, if you change the module function, the function will be cut to the appropriate state. The second way is fixed in serial format 9600, N, 1 into the AT.   Instructions: 1. AT Test instructions Example: Send module commands "AT", the module returns "OK".   2. AT + Bxxxx Change the serial port baud rate command. You can set the baud rate is 1200bps, 2400bps, 4800bps, 9600bps, 19200bps, 38400bps, 57600bps and 115200bps. The factory default is 9600bps. Example: Set the module serial port baud rate is 19200bps, please send module command "AT + B19200", the module returns "OK + B19200".   3. AT + Cxxx Change the wireless communication channel, selectable from 001 to 127 (more than 100 radio channels after the communication distance not guaranteed). The default value is 001 radio channels, operating frequency is 433.4MHz. Step channel is 400KHz, the operating frequency of the channel 100 is 473.0 MHz.   Example: Set module to channel 21, please send module command "AT + C021", the module returns "OK + C021". After exiting the command mode, the module in the first 21 channels, operating frequency is 441.4 MHz. Note: Because the wireless receiver module sensitivity HC-12 is relatively high, the baud rate is greater than when air 58000 bps, 5 must be shifted to the adjacent channel use. When the air baud rate is not greater than 58000 bps, if the short distance (10 meters) communication, but also need to stagger five adjacent channel use.   4. AT + FUx Change the module serial pass-through mode, there FU1, FU2 and FU3 three modes. Module default mode is FU3, two serial pass-through mode module must be set to the same communication. See detailed above, "wireless serial pass-through" part. Example: Send module commands "AT + FU1", the module returns "AT + OK".   5. AT + Px The default setting is 8, maximum transmit power, communication distances. Transmit power level is set to 1, the minimum transmission power. In general, the transmission power of each drop 6dB, communication distance will be reduced by half. Example: Send module commands "AT + P 5", the module returns "OK + P5". After exiting the command mode, the module transmit power is +11 dBm. Package included: 1 x HC-12 module

3Pcs ESP8266 ESP-12F Remote Serial Port WIFI Transceiver Wireless Module Description: ESP-12F: breakthrough design, there are new breakthroughs. The new four-layer board design, the new revision antenna RF performance optimization, compared to the communication from the ESP-12E increased by 30% to 50%! Semi-hole chip technology, the whole IO leads, with metal shielding shell, has passed FCC & CE & RoHS certification, built-board PCB antenna, 4M bytes Flash. Note: We don't offer any supports,sorry for the inconvenience. Package included: 3 x ESP8266 ESP-12F Remote Serial Port WIFI Transceiver Wireless Module

3Pcs ESP8266 ESP-12E Remote Serial Port WIFI Transceiver Wireless Module Description: ESP8266-12E is an enhanced version ESP8266-12, improve peripheral circuitry increases impedance matching, the signal output is better, whether it is stable or anti-jamming capability, have been greatly improved! For users before selecting the ESP-12, it does not matter even if the product has been made, enhanced version is fully compatible with previous firmware, the pin has added six IO ports on the basis of the ESP-12, SPI leads Note: We don't offer any supports,sorry for the inconvenience Package included: 3 x ESP8266 ESP-12E Remote Serial Port WIFI Transceiver Wireless Module  

3Pcs ESP8266 ESP-12F Remote Serial Port WIFI Transceiver Wireless Module Package contains 1 X item of the smallest listed variant.