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    PCB SIM800A Module Wireless Extension Module GSM GPRS STM32 Board Antenna Support 2&1 Serial Port and 1 AT command port

    PCB SIM800A Module Wireless Extension Module GSM GPRS STM32 Board Antenna Support 2&1 Serial Port and 1 AT command port

    Specification: Condition: 100% Brand New Item Type: SIM800A Module Material: PCB Color: as picture shown Working temperature: -30℃to+80℃ Working voltage 3.3-4.2V Starting voltage > 3.4V The average standby current is below 3ma Sensitivity <-105... more

    $21.19

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    (1 PC) SIM800L with Spring/Antenna Mini GPRS GSM Module Micro SIM Card Core Quad-band TTL Serial Port Electronics Board for Arduino DIY

    (1 PC) SIM800L with Spring/Antenna Mini GPRS GSM Module Micro SIM Card Core Quad-band TTL Serial Port Electronics Board for Arduino DIY

    Module model: SIM800L (new module performance exceeds SIM900/M590) Working voltage: 3.7~4.2V (peak current is 1A please handle it) Support network: global quad-band network Module size: 2.5cmx2.3cm The serial port is a TTL serial port which can be... more

    $12.88

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    Xingmingcan HF2211 HF2211 Serial Server RS232/485/422 To WIFI & Ethernet DTU Network 5-36VDC Serial Network Server

    Xingmingcan HF2211 HF2211 Serial Server RS232/485/422 To WIFI & Ethernet DTU Network 5-36VDC Serial Network Server

    Feature: 1. Using MIPS MCU 8MB for and 4MB Flash based on eCos operating system. 2. Passed FCC_CE_RoHS_SRRC_ certification. 3. Support RS232 / RS422 / RS485 to Wi-Fi / Ethernet data the maximum serial port speed is 230400 bps. 4. Support for TCP / for... more

    $60.40

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