5pcs extend serial

Buy 5pcs Extend Serial IO I/O Module Grove I2C Interface Expansion Board for ESP32 Development for R525.50

Buy 5pcs DB9 Serial Port Adapter Connector RS232 Converter Head for R95.00

Buy 5pcs bluetooth Serial Port Wireless Data Module Compatible SPP-C With HC-06 for R411.72

Buy 5pcs HC-08 Serial bluetooth 4.0 Module Transparent Communication Master-slave Integration Module for R472.31

5Pcs 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: 5 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

5pcs HC-05 Wireless Bluetooth Serial Module With Baseplate For Arduino Note: This module does not suitable for IOS system. Pin serial port descriptions: PIO8 connect LED, indicates the status of working, after powered the module flashing, different states in different flashing intervals. PIO9 connect LED, indicates successful connecting module, after successful mating bluetooth serial port, LED long lights. PIO11 state switch pin (high level) -> AT command response to the work state, low level or dangling -> Bluetooth regular work status. On module with a reset circuit, re-power to complete the reset. Main module setup steps: 1. PIO11 set high. 2. Power ON, the module into the AT command response status. 3. HyperTerminal or other serial tool, set the baud rate 38400, 8 data bits, 1 stop bit, no parity, no flow control. 4. Serial send characters "AT + ROLE = 1 r n", successful return "OK r n", which r n for carriage return. 5. PIO set low, re-power, module as the main module, automatic search from module to establish a connection. Feature: 6V - 4.5V power supply; Support connect Android phones with Bluetooth; The default baud rate: 9600 can be modified according to the data sheet; Package included: 5 x HC-05 Wireless Bluetooth Serial Module

5Pcs Translucent USB To RS232 Serial 9 Pin Converter Cable Adapter Specification: Cable length: 3.5 Ft/1M Connecter input: USB1.1 port Connecter output: 9 pin RS 232 interface Features: USB 1.1/2.0 compliant Over 1 Mbps data transfer rate. This USB Converter Cable also upports remote wake-up and power management. Provide a simple and easy way to connect universal serial bus and serial port interface. Users have the capability to utilize the peripheral with plug & play swap function with this USB Converting Cord. System requirements: PC: IBM PC 486DX 4-100mHz CPU or higher or compatible system, available USB port, windows 98/Me/2000/XP. Apple Computer: power G3 or G4 CPU or higher or compatible system, available USB port,Mac OS 8.6 or higher. Please Note: It does not work for Win7 win8 Vista 64bit system. It does work for Win7 win8 Vista 32bit system. This 3.5 Feet USB to RS 232 Converter Cable is designed for ideal connections to cellular phone, d igital camera,modems or ISND terminal adaptor. Package Included: 5 x USB To RS232 Serial DB 9 PIN COM Port Converter cable

5Pcs ESP8266 ESP-12 Remote Serial Port WIFI Transceiver Wireless Module Description: It run LWIP 802.11 bgn WIFI Direct (P2P),SOFT-AP Built-in TCP/IP The AT command is perfect,efficient,concise Support three modes: AP, STA and AP+STA coexistence mode Package included: 5 x ESP-12 Remote Serial Port WIFI Transceiver Wireless Module

5Pcs 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: 5 x ESP8266 ESP-12F Remote Serial Port WIFI Transceiver Wireless Module

5Pcs ESP8266 Remote Serial Port WIFI Transceiver Wireless Module Description: It run LWIP 802.11 bgn WIFI Direct (P2P),SOFT-AP Built-in TCP/IP The AT command is perfect,efficient,concise Support three modes: AP, STA and AP+STA coexistence mode Package included: 5 x ESP8266 Wireless Module

5Pcs AD9833 Programmable Microprocessor Serial Interface Module Features: Digitally programmable frequency and phase 12.65 mW power consumption at 3 V 0 MHz to 12.5 MHz output frequency range 28-bit resolution: 0.1 Hz at 25 MHz reference clock Sinusoidal, triangular, and square wave outputs 2.3 V to 5.5 V power supply No external components required 3-wire SPI interface Extended temperature range: ?40ﾰC to 105ﾰC Power-down option Update rate: 25(max) VOUT maximum: 0.65V VOUT minimum: 38mV VOUT temperature Coefficient: 200ﾰ Input high voltage: 1.7-2.8V Input low voltage: 0.5-0.7V Input current: 10ﾵA Input capacitance: 3pF Operating temperature range: ?40ﾰC to 105ﾰC, typical specification at 25ﾰC Size: 17*12mm / 0.66*0.47' Package includes: 5 x Signal Generator Module

5Pcs ESP8266 Remote Serial Port WIFI Transceiver Wireless Module

5Pcs Pro Mini ATMEGA328P Module 3.3V 8M Interactive Media Upgrade Version For Arduino Description:Professional version Arduino Mini Pro is a micro-controller board. It has 14 digital input / output pins (of which 6 can be used as PWM outputs), 8 analog inputs, a 16MHz resonator, a reset button, mounting hole pin head.Parameter:- 14 digital input / output port: RX, TX, D2 ~ D13,- 8 analog input port: A0 ~ A7- A pair of TTL level serial port transceiver: RX / TX- 6 PWM port: D3, D5, D6, D9, D10, D11- Use Atmega328P-AU microcontroller- Support serial download- Support external 3.3V ~ 12V DC power supply- Support 9V battery- Clock frequency:16MHz- Size: 33.3 * 18.0 (mm)Package included:5 x Module

5Pcs MAX7219 Red 8 Bit Digital Tube LED Display Module For Arduino MCU Description: MAX7219 is an integrated serial input / output common-cathode display drivers, which connects the microprocessor and 8 bit 7-segment digital LED display, you can also connect a bar graph display or 64 separate LED. Includes an on-chip type B BCD encoders, multi-channel scanning loop, segment word driver, but also a 8x8 static RAM that stores each data. Only one external register is used to set the current of each LED segment. A convenient four-wire serial interface can connect all common microprocessor. Each data can be addressed in the update without rewriting all displays. MAX7219 also allows the user to select each data encoding or no coding. The entire device includes a 150μA low-power shutdown mode, analog and digital brightness control, a scan-limit register allows the user to display 1-8 bit data, there is an all LED light detection mode. Feature: 0.36 inch Common cathode Only need three IO ports can drive 8 bit digital tube The module compatible of 5V / 3.3V microcontroller (51 / AVR / STM32...) PCV board four corners of the fixed copper stud, which can effectively precent short circuit accidents happen Wiring instructions (a program, for example, you can pick any IO port definition can be modified in the program): VCC to 5V, GND to GND, DIN to P00, CLK to P02, CS to P01 Note: VCC and GND do not reversed, it would burn the chip. 51 MCU P0 port requires pull-up resistor, if your device does not have a pull-up resistor can be connected to other ports data lines. Package included: 5 x MAX7219 8 bit digital tube module 20 x Copper pillar 20 x Screws

5Pcs Upgraded Version 1M Flash ESP8266 ESP-01 Remote Serial Port WIFI Transceiver Wireless Module Description: Upgraded Version ESP-01,all Flash are upgraded to 1M byte.Also support Cloud service remote transmission.This Upgraded Version module are fully supports the previous firmware The latest firmware version 1.0.1, the default baud rate of 115200, (AT + CIOBAUD = to change the baud rate), because the old version of the module is 512k bytes of storage space is not enough, so we can not upgrade the 1.0. 1 version, but also support the cloud services! Note: We don't offer any supports,sorry for the inconvenience Package included: 5 x Upgraded Version 1M Flash ESP8266 ESP-01 WIFI Transceiver Wireless Module