Search found 824 matches

by kolban
Mon Jul 24, 2017 3:51 am
Forum: ESP32 Arduino
Topic: What is the meaning of startup text on ESP32
Replies: 5
Views: 186

Re: What is the meaning of startup text on ESP32

Howdy, There is a good load of information found here: http://esp-idf.readthedocs.io/en/latest/ and also the Technical Reference Manual contains lot of good information at the lowest possible levels ... see: http://espressif.com/sites/default/files/documentation/esp32_technical_reference_manual_en.pdf
by kolban
Mon Jul 24, 2017 3:45 am
Forum: General Discussion
Topic: What is the function of partitions_singleapp.bin?
Replies: 2
Views: 18

Re: What is the function of partitions_singleapp.bin?

In what context is this phrase/statement/application/definition used? Is it contained in the documentation somewhere or is it a file found in one of the projects?
by kolban
Sun Jul 23, 2017 8:54 pm
Forum: ESP32 SDK
Topic: [Question]: Maximum interrupt rate on GPIO
Replies: 3
Views: 20

Re: [Question]: Maximum interrupt rate on GPIO

Thank you Mr ESP_Igrr ... I haven't run the test yet but added it to my list of things to try. Let us assume that it does take 2µS to execute the most trivial interrupt handler (using the ESP-IDF framework as described in previous post), then that would appear to say that we are able to process 500,...
by kolban
Sun Jul 23, 2017 4:21 pm
Forum: ESP32 SDK
Topic: [Question]: Maximum interrupt rate on GPIO
Replies: 3
Views: 20

[Question]: Maximum interrupt rate on GPIO

What is the maximum interrupt rate we can support on a GPIO input pin? Tests and back story: I am playing with an OV7670 camera module. This has an input clock frequency of 4MHz. For each byte of pixel data, it transitions a clock signal from low to high. https://cdn.pbrd.co/images/GChQVDZ.png My th...
by kolban
Fri Jul 21, 2017 5:20 pm
Forum: Showcase
Topic: WiFi and Bluetooth connected house ...
Replies: 1
Views: 81

WiFi and Bluetooth connected house ...

Here is an excellent new application for wireless technologies for the home

Image
by kolban
Fri Jul 21, 2017 3:05 pm
Forum: ESP32 SDK
Topic: get current time in millis()
Replies: 2
Views: 71

Re: get current time in millis()

This might be a useful previous post:

viewtopic.php?t=1468

If it were me, I'd probably use "gettimeofday".
by kolban
Thu Jul 20, 2017 6:57 pm
Forum: General Discussion
Topic: BLE Authentication
Replies: 1
Views: 58

Re: BLE Authentication

Since the ESP32 has flash memory, you could make it such that when the ESP32 with BLE boots for the first time, it will accept connections from anyone. When you then connect your desired device, it could remember the address of that device and only allow connections from it in the future.
by kolban
Thu Jul 20, 2017 4:57 am
Forum: ESP32 SDK
Topic: [Answered]: Release of memory passed by reference to ESP-IDF functions
Replies: 5
Views: 118

Re: [Question]: Release of memory passed by reference to ESP-IDF functions

Perfect ... thank you sir. I'll assume that deep copies are the norm/expected unless explicitly stated in any of the documentation. If we find places where that is not the case (memory must remain involute but isn't documented as such), we'll raise an issue.
by kolban
Thu Jul 20, 2017 3:43 am
Forum: General Discussion
Topic: Access to the MAC address
Replies: 1
Views: 45

Re: Access to the MAC address

Howdy,
I think the API call you are looking for can be found here:

http://esp-idf.readthedocs.io/en/latest ... 6_7uint8_t

It is called "esp_wifi_get_mac".
by kolban
Thu Jul 20, 2017 3:40 am
Forum: ESP32 SDK
Topic: [Answered]: Release of memory passed by reference to ESP-IDF functions
Replies: 5
Views: 118

Re: [Question]: Release of memory passed by reference to ESP-IDF functions

Thank you sir. I wasn't clear in my original question. My question isn't "WHO" should release the memory ... I fully believe in the "you allocated it, you free it" policy ... my question is "WHEN" is it safe to release it? For example ... is the following safe: uint8_t*...

Go to advanced search