Search found 496 matches

by mikemoy
Fri Jun 18, 2021 9:00 am
Forum: ESP32 Arduino
Topic: Issue running in two different tasks Wifi and I2C device
Replies: 3
Views: 930

Re: Issue running in two different tasks Wifi and I2C device

Anyone may help me to figure out what can be wrong?
without posting your code, probably not.
by mikemoy
Sun Mar 14, 2021 3:26 am
Forum: General Discussion
Topic: LAN8720 iperf test speed insufficient 100Mbps
Replies: 5
Views: 1433

Re: LAN8720 iperf test speed insufficient 100Mbps

@chdwjzd Out of curiosity why is 100 Mbits / sec so important? I mean the ESP32 cannot even process that much information anyways.
by mikemoy
Wed Jan 06, 2021 2:26 pm
Forum: Showcase
Topic: New $23 ESP32 audio board on Kickstarter
Replies: 3
Views: 4115

Re: New $23 ESP32 audio board on Kickstarter

I wish you the best on your Kickstarter project. If I may suggest something about Kickstarter the video. IMHO, the video would have been much better if you had shown it in action.
by mikemoy
Mon Jan 04, 2021 2:07 pm
Forum: Hardware
Topic: I can't flash ESP32-WROOM module in my project
Replies: 7
Views: 4335

Re: I can't flash ESP32-WROOM module in my project

Actually you dont need to do it, its enough to pull down IO0 and then connect to power supply. Sure, you can do it that way as well. But why bother when the EN and IO0 signals are built into the programming adapter. Just run the extra signal line. If your going to have a way to pull IO0 low, you mi...
by mikemoy
Mon Jan 04, 2021 2:22 am
Forum: Hardware
Topic: I can't flash ESP32-WROOM module in my project
Replies: 7
Views: 4335

Re: I can't flash ESP32-WROOM module in my project

You do not need a "button" but when flashing you need a way to pull EN low. His schematic has no provision for doing that.
by mikemoy
Fri Dec 18, 2020 6:49 pm
Forum: General Discussion
Topic: Error: JTAG scan chain interrogation failed: all ones
Replies: 4
Views: 2285

Re: Error: JTAG scan chain interrogation failed: all ones

An interesting thing is, when I hold the EN button on the DevKit and run the command above,
Not really. Holding the EN down hold it into a reset state.
how about providing your JTAG pinot to the module.
by mikemoy
Tue Dec 08, 2020 5:29 pm
Forum: General Discussion
Topic: ESP32 Hardware serial issue.
Replies: 1
Views: 759

Re: ESP32 Hardware serial issue.

Just curious why your using Serial1.end() ?
Disables serial communication, allowing the RX and TX pins to be used for general input and output. To re-enable serial communication, call Serial.begin().
https://www.arduino.cc/reference/en/lan ... erial/end/
by mikemoy
Mon Nov 30, 2020 2:17 pm
Forum: Hardware
Topic: Flashing Bare Esp32 WROOM
Replies: 1
Views: 694

Re: Flashing Bare Esp32 WROOM

Then I push the "Boot" button and "EN" button same time and release the EN button.
The correct way is push "Boot" and "EN" buttons at same time then release "EN" button, then wait about 0.25 sec and release "Boot" button.
by mikemoy
Mon Nov 23, 2020 5:10 am
Forum: ESP-IDF
Topic: I2C Repeated start
Replies: 5
Views: 1657

Re: I2C Repeated start

Have you had a look at the I2C examples?

https://github.com/espressif/esp-idf/tr ... herals/i2c
by mikemoy
Mon Nov 23, 2020 5:06 am
Forum: General Discussion
Topic: Fastest way to transfer data
Replies: 4
Views: 1161

Re: Fastest way to transfer data

Can i use http or tcp for file transfer while having the esp32 as an AP?
http uses tcp (mainly).
tcp is to ensure your data get there correctly with no dropped packets. udp is a send and forget method. udp is faster, but you are not assured that all the data will get to the client.

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