aymen ammari
DIIDevHeads IoT Integration Server
•Created by Fatogoma on 12/11/2024 in #🟩-pcb-and-analog
How can I implement the circuit for SIM A7670c with ESP32-S3 and 4G connectivity?
To integrate the SIM A7670C with your ESP32-S3 board, ensure a stable 3.8V power supply (with 2A peak), connect UART (TX/RX) for communication, and use level shifters if needed. Add a SIM card holder with proper pull-ups and ESD protection. Connect a 4G LTE antenna, and tie RESET and PWRKEY to GPIOs for control. Use the datasheet's reference design for passives and ensure your ESP32 firmware supports AT commands. Let me know if you need more details!
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