I need a circuit to download the firmware inside esp32 and the pin used.
Hi
I need a circuit to download the firmware inside esp32 and the pin used.
Solution:Jump to solution
To automate firmware downloads on your
ESP32 using an FTDI module, connect the FTDI's DTR to the ESP32's EN (Enable) pin, and RTS to GPIO0 (BOOT), each through a 0.1 µF capacitor. This setup allows the flashing tool to automatically reset the ESP32 and enter flash mode without any manual button presses.4 Replies
@youcef_ali connect a
USB-to-Serial converter to the ESP32's RX (GPIO3), TX (GPIO1), GND, and 3.3V pins. Hold GPIO0 (BOOT) low and press the reset button to enter flash mode. Then, use a tool like esptool.py to upload the firmware.I'm looking for auto download without user interactions, using ftdi
Solution
To automate firmware downloads on your
ESP32 using an FTDI module, connect the FTDI's DTR to the ESP32's EN (Enable) pin, and RTS to GPIO0 (BOOT), each through a 0.1 µF capacitor. This setup allows the flashing tool to automatically reset the ESP32 and enter flash mode without any manual button presses.I'll try it