E840-DTU(EC05-485)E HTTP Client Test Tutorial

•Quick-start guide to configure the device in HTTP client mode.
•High-performance 4G DTU data transmission terminal device that uses 4G CAT1 technology and has the characteristics of small size, high speed, low latency and easy use. Simple configuration can achieve two-way transparent transmission between serial port devices and network servers. The product uses 2.54mm spring-loaded terminals for easy wiring, supports guide rail and positioning hole installation, and can be easily integrated into IoT projects. In this article, we introduce the quick test method of E840-DTU(EC05-485)E in HTTP mode.
•Covers software tools and AT commands to test HTTP communication.

First, https://ebyteiot.com/as shown in Figure 1 below.

Open the product configuration host computer, select the correct COM port in the upper left corner, the device default baud rate is 115200, click OPEN to open the port. Then click AT mode in the upper right corner to enter AT mode, as shown in Figure 2 below. After, successfully entering AT mode, the words AT mode successfully will be displayed in the log window, as shown in Figure 3 below.

Click Read prams in the upper right corner, wait for all parameters to be read, and then select LINK 1 to configure the parameters, as shown in Figure 4 below.
Select HTTP Client protocol in the Protocol option, as shown in Figure 5. After the modification is completed, the "HTTP Connection Parameters" will pop up automatically, as shown in Figure 6.
First, set the "Server Address" and "Destination Port" as shown in Figure 7. Next, set the "HTTP Transport Method" to "GET", set the "URL" to "/text", and finally, set the "HTTP Header Content". The standard HTTP format should be "Host: Server Address" as shown in Figure 8. Please note that this is just a demonstration of the HTTP function. Satisfy adjust the real values to reflect your current circumstances.

Click Save in the top right area once the settings are finished.. After saving, restart the device, as shown in Figure 9 below.
Wait for a while, and when the STATE light of the device changes from flashing to solid on, it means that the product is connected successfully. Next, we also use the network debugging assistant to simulate the HTTP server receiving data. Finally, open the serial port debugging tool software, send any data, and check whether the HTTP protocol packet sent successfully can be received in the network debugging assistant.

As shown in Figure 10 above, https://ebyteiot.com/products/ebyte-e840-dtuec05-485e-iot-4g-cat1-lte-router-modem-rs485-gateway-wireless-module-transparent-transmission-4g-cat1-dtu?_pos=1&_sid=ded7af2cb&_ss=r the HTTP function successfully sent a GET request to the server, and the server also received the HTTP GET request.
Next, test POST, change the "HTTP transmission method" of the device to "POST", then click Save Parameters, and restart the device after saving successfully, as shown in Figure 11 below.
Wait for a while, and when the STATE light of the device changes from flashing to solid on, it means that the product is connected successfully. Still use the network debugging assistant to simulate the HTTP server to receive data. Open the serial port debugging tool software, send any data, and observe that the server receives the POST data sent by the device, as shown in Figure 12 below.

HTTP Test Steps (Based on tutorial + manual):

1:Connect antenna, RS485, SIM, power.
2: Use the config tool to set the server address/port and select HTTP client mode.
3: From a terminal or serial tool, send GET/POST formatted AT commands (AT+HTTPGET / AT+HTTPPOST).
4: Confirm device forwards request and relays response over RS 485.

Conclusion:

The E840-DTU(EC05-485)E module offers a muscular and flexible solution for wireless data communication using HTTP protocols over 4G. Through with this tutorial, users can with confidence set up and test the module's HTTP client mode, factitive seamless data transmission between serial devices and cloud servers or web API s. Whether used in industrial automation, remote monitoring, or IoT applications, the EC05-485E proves to be a reliable asset. With proper configuration and knowing of its AT commands, even complex integration become straightforward. For developers and engineers seeking dependable HTTP-based M2M communication, this module stands out as a robust and cost-effective choice.

For media inquiries, please contact: Ebyteiot.com/collections/new-products
Email: ebyteiot@cdebyte.com
Website: https://ebyteiot.com/

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