OTA without a USB or FTDI interface
Posted: Mon Dec 13, 2021 12:19 am
Hi ESP32 people,
I am developing a new ESP32 board for a wrist watch. The board will be 55 mm round. Space is limited. I used SP32-S3-WROOM-1 modules so far. The module comes with the ESP-IDF bootloader preinstalled. I'd like to remove the USB chip and cable connector from my board design and only use OTA for uploading and running programs. If my board has no USB how do I get the first program onto the ESP32 using OTA? Does the bootloader on a fresh new module know to wait for an OTA upload of a new program?
-Frank
I am developing a new ESP32 board for a wrist watch. The board will be 55 mm round. Space is limited. I used SP32-S3-WROOM-1 modules so far. The module comes with the ESP-IDF bootloader preinstalled. I'd like to remove the USB chip and cable connector from my board design and only use OTA for uploading and running programs. If my board has no USB how do I get the first program onto the ESP32 using OTA? Does the bootloader on a fresh new module know to wait for an OTA upload of a new program?
-Frank