Search found 4 matches

by m.rowe
Mon Mar 16, 2020 9:06 pm
Forum: ESP32 Arduino
Topic: Auto Upload Circuit?
Replies: 5
Views: 8798

Re: Auto Upload Circuit?

Thank you.

All understood & working now.

Regards,
by m.rowe
Sun Mar 15, 2020 9:47 am
Forum: ESP32 Arduino
Topic: UPLOADING? What is the Arduino IDE doing "under the hood"
Replies: 1
Views: 4036

UPLOADING? What is the Arduino IDE doing "under the hood"

Hi, I believe (and please correct me if I'm mistaken), that when I click "Upload" in the Arduino IDE (Ver 1.18.12) with the ESP32 core selected, the esptool.py is invoked. This invocation string is something along the lines of: esptool.py --chip esp32 --port /dev/ttyUSB0 --baud 921600 --before defau...
by m.rowe
Sat Mar 14, 2020 6:09 pm
Forum: ESP32 Arduino
Topic: Auto Upload Circuit?
Replies: 5
Views: 8798

Re: Auto Upload Circuit?

Hi,
Thank you for the response.
When you say: "I use simple wiring, RX,TX, GND, RTS to EN(reset), DTR to GPIO0"
Do you mean that RTS is connected DIRECTLY to EN? You are not using any interface or timing circuitry?
Like this?
ESP32_Auto_upload2.png
ESP32_Auto_upload2.png (2.73 KiB) Viewed 8739 times
Regards, Martin
by m.rowe
Fri Mar 13, 2020 4:34 pm
Forum: ESP32 Arduino
Topic: Auto Upload Circuit?
Replies: 5
Views: 8798

Auto Upload Circuit?

I see many references on implementing an auto upload circuit for the ESP32. Most are variants of this circuit: ESP32_Auto_Upload.png Having set the back-story, my question is this: The Arduino IDE is using a USB to Serial Module (model unspecified) to send the program to the ESP32 in response to the...