ESP32 4G Gateway (Gen 1) ESP32 SIM7600 Cellular Modem Interface using Arduino IDE With example code, this article covers ESP32 SIM7600 4G LTE cellular modem interfacing using Arduino IDE. Hardware used is ESP32 Gateway. Continue Reading 0 comment 0 FacebookTwitterPinterestEmail
ESP32 4G Gateway (Gen 1) esp_modem_dte_send_cmd: process command timeout – SOLVED ESP32 PPPoS modem “esp_modem_dte_send_cmd(): process command timeout” error, causes, and some solutions that work with SIM7600 and A7670. Continue Reading 0 comment 0 FacebookTwitterPinterestEmail
Embedded Using Multiple SIM Cards with Cellular Modems (SIMCom, Quectel, etc) Using multiple SIM cards with SIMCom or Quectel modems is easy using multiplexers and a basic logic controller. Modems must support hot swap. Continue Reading 0 comment 0 FacebookTwitterPinterestEmail
Embedded “ERROR: SIM Failure” in Simcom 4G LTE Modems – Solutions I list some cases with using SIM commands like AT+CIMI which result in “ERROR: SIM failure”. Common problems are listed along with solutions. Continue Reading 0 comment 0 FacebookTwitterPinterestEmail
Embedded ESP32 4G Cellular Modem Interfacing ESP32 4G modem interface allows you to add cellular internet connectivity to your IoT designs. Find schematics, PCB guidelines and code here. Continue Reading 0 comment 0 FacebookTwitterPinterestEmail