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esp32 gateway

basic esp32 ethernet example menuconfig settings
Embedded

Simple ESP32 Ethernet Example with ESP32 Gateway

by Pratik (A PCBArtist) March 19, 2023

Using ethernet with ESP32 is very easy, thanks to the built-in RMII PHY. In this article, a simple ESP32 ethernet example is outlined.

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gps active antenna with long cable
Product Documentation

Using GPS – ESP32 Gateway with Simcom Modem

by Pratik (A PCBArtist) March 11, 2023

Using the built-in GPS, ESP32 Gateway can obtain a fix on its current location and also acquire current time. This makes IoT asset tracking easier.

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esp32 4g hotspot debug log
Firmware

ESP32 crashes on esp_netif_internal_dhcpc_cb() – SOLVED

by Pratik (A PCBArtist) February 26, 2023

The ESP32 crashes on esp_netif_internal_dhcpc_cb() when being used as a NAT router with cellular modem and Wi-Fi or ethernet – SOLVED!

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esp32 4g gateway gen1 sim7600 4g modem ethernet rs485 enclosure features
News

ESP32 4G Gateway Gen.1 Design – Prototype and Testing

by Pratik (A PCBArtist) November 1, 2022

News and Updates on the ESP32 4G Gateway Gen.1 which features a 4G LTE modem, ethernet, RS485 and solar power with a battery charger.

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esp32 modem command timeout value setting for esp_modem_dte_send_cmd
ESP32 4G Gateway (Gen 1)

esp_modem_dte_send_cmd: process command timeout – SOLVED

by Pratik (A PCBArtist) October 23, 2022

ESP32 PPPoS modem “esp_modem_dte_send_cmd(): process command timeout” error, causes, and some solutions that work with SIM7600 and A7670.

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ERROR SIM Failure simcom voltage drop
Embedded

“ERROR: SIM Failure” in Simcom 4G LTE Modems – Solutions

by Pratik (A PCBArtist) August 15, 2021

I list some cases with using SIM commands like AT+CIMI which result in “ERROR: SIM failure”. Common problems are listed along with solutions.

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load cell esp32 gateway interfacing connection diagram
ESP32 Gateway and Industrial Controller

Interfacing a Load Cell with ESP32

by Pratik (A PCBArtist) June 13, 2021

Article on interfacing a load cell with the ESP32 gateway and industrial controller from PCB Artists. Includes example code snippets.

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