Requirement

Software Tools

ESP-IDF for ESP32

Hardware Components

• ESP WROOM32
• SIMCOM A7672S
• SIMACARD

ESP-IDF Development Environment Changes

• Replace the esp_https_ota.c & esp_https_ota.h components file (your local development environment) with the files given in folder idf_internal_file.
• Location of the file (esp_https_ota.c): C:\ own esp working directory \components\esp_https_ota\src\esp_https_ota.c.
• Location of the file (esp_https_ota.h) : C:\ own esp working directory \components\esp_https_ota\includes\esp_https_ota.h.

Hardware Interfacing

• GPIO 17 (ESP) : UART TX (A7627S)
• GPIO 16 : UART RX
• GPIO 32 : ENABLE

Uploaded Firmware File Cloud URL

• replace the Firmware File URL (Where the bin file is stored) in simcom.c file with your cloud URL
• Example : https://www.mosquitto.com/beta/iot/blink.bin