EC200U Standalone Programming & OpenCPU Support

Technical Subjects Open Solution
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1

I am seeking technical guidance regarding the EC200U LTE module. I have successfully implemented a project where an ESP32 microcontroller controls the EC200U using AT commands over UART, and I would like to verify if my current approach is optimal. I also want to understand the possibilities for programming the module directly.

Project Overview

Microcontroller:ESP32
LTE Module:EC200U
Current Setup: ESP32 communicates with EC200U via UART using AT commands

Features Implemented:

  • PPP data connection
  • SIM management
  • Network registration

My Technical Questions

  1. Direct EC200U Programming
    Is it possible to program the EC200U so it can operate independently without an external microcontroller?
    If yes, what methods or development environments are recommended for standalone application development?

  2. OpenCPU Development
    Does the EC200U module support the OpenCPU development platform?
    If supported, which tools, SDK, or documentation should be used to build and deploy applications directly on the module?

I would greatly appreciate any guidance or best practices to help me optimize my implementation and better understand the standalone capabilities of the EC200U module.

Thank you for your time and support.

2

The EC200U supports openCPU. However, you need to provide Quectel with an assessment of the project requirements. If it is approved, we will release the SDK. Meanwhile, if your application is relatively simple, I suggest you use AT. Its development process is much faster.

3

I am currently using an ESP32 together with the EC200U-CN module to provide internet connectivity. I would like to know if it is possible to use only the EC200U-CN module (without the ESP32) to provide internet access.

Additionally, is it possible to connect other devices to the EC200U-CN through Wi-Fi, similar to a hotspot, so that those devices can access the internet through the EC200U-CN module?

Please provide guidance or suggestion

4

Yes, you can remove the ESP32 and directly use the openSDK; The Wi-Fi function is merely Wi-Fi Scan and does not support Wi-Fi connection.