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Specification Amica NodeMCU Lolin NodeMCU NodeMCU Wroom32 Microcontroller ESP-8266 32-bit ESP-8266 32-bit ESP-WROOM-32 processor Xtensa single core 32 bit L106 Xtensa single core 32 bit L106 Tensillica Xtensa LX6 microprocessor with 2 cores NodeMCU Size 49mm x 26mm 58mm x 32mm 49mm x 25 mm Pin Spacing 0
with an integrated temperature-compensated crystal oscillator (TCXO) and crystal
magnetic and 1/4" thread mount
20-pin standard interface
SmartElex A9 GSM GPRS Development Board for IoT & Wireless Communication Zero PCB Specification Amica NodeMCU Lolin NodeMCUSmartElex A9 GSM GPRS Development Board for IoT & Wireless Communication The SmartElex GSM GPRS Development Board is a compact and practical solution for adding cellular connectivity to electronics projects. Built around the A9 GSM GPRS module, it allows users to send and receive data, calls, or messages over mobile networks, making it useful where Wi Fi is not available. This board is suitable for students, makers, educators, engineers, and startups
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