Search found 305 matches

by jcsbanks
Tue Apr 14, 2020 8:45 pm
Forum: ESP-IDF
Topic: AWS S3 - root certificate changing
Replies: 4
Views: 10097

Re: AWS S3 - root certificate changing

I have Amazon Root CA 1 already stored, I just need to work out how and when to use it instead of Digicert, or how to allow either to be used. Any suggestions welcome.
by jcsbanks
Sat Mar 21, 2020 11:42 am
Forum: ESP-IDF
Topic: AWS S3 - root certificate changing
Replies: 4
Views: 10097

AWS S3 - root certificate changing

I received an email from AWS saying that the root certificate for some S3 regions was going to change from March 2021. Frequently Asked Questions Q1: What is changing? The certificate authority for Amazon S3 and Amazon CloudFront’s default certificates are changing from DigiCert to Amazon Trust Serv...
by jcsbanks
Thu Mar 05, 2020 11:14 pm
Forum: ESP-IDF
Topic: httpd: serving gzip index.html
Replies: 2
Views: 5718

Re: httpd: serving gzip index.html

Thanks!
by jcsbanks
Thu Mar 05, 2020 8:34 pm
Forum: ESP-IDF
Topic: httpd: serving gzip index.html
Replies: 2
Views: 5718

httpd: serving gzip index.html

I have an index.html that has grown to 88KB but will gzip to 23KB. ESP-IDF 3.3 release. If there anything I can do without digging into and modifying the httpd source code to signal that the file being served is gzipped? esp_err_t index_html_get_handler(httpd_req_t *req) { httpd_resp_send(req, (cons...
by jcsbanks
Fri Dec 20, 2019 9:29 am
Forum: ESP-IDF
Topic: APSTA - time before network shows in Windows
Replies: 0
Views: 1690

APSTA - time before network shows in Windows

What settings (if any) might influence the time it takes for the AP to show in Windows or Android when they scan for networks? It can take a few seconds to appear even when the ESP32 has been powered for a while.

ESP IDF 3.3.
by jcsbanks
Tue Dec 17, 2019 1:47 pm
Forum: General Discussion
Topic: power save in esp32 with running can bus
Replies: 11
Views: 10532

Re: power save in esp32 with running can bus

AFAIK you cannot power save whilst being able to receive on CAN without losing data, unless the ESP32 is the only device on the bus doing the ACK, then there should be retransmits. You can wake the ESP32 on CAN bus activity due to change in level on the Rx pin.
by jcsbanks
Wed Nov 27, 2019 9:21 am
Forum: ESP-IDF
Topic: Store Certificates in encrypted partition , how ?
Replies: 5
Views: 6205

Re: Store Certificates in encrypted partition , how ?

NVS as blob to avoid string limit. There is an Espressif tool to make NVS partition data.
by jcsbanks
Tue Nov 26, 2019 8:45 am
Forum: ESP-IDF
Topic: Experiement to load/execute compiled C code into RAM
Replies: 9
Views: 12147

Re: Experiement to load/execute compiled C code into RAM

It worked, but I did not continue using it. Doing an OTA update of all the code and data together was easier to use and support for our application. Run time scripts were small and fast by parsing them with std::string so did not have to bulk it with and learn Lua etc.
by jcsbanks
Tue Nov 19, 2019 9:41 am
Forum: General Discussion
Topic: OTA of factory image
Replies: 5
Views: 5503

Re: OTA of factory image

Dev boards from various sources might have firmware, but modules we had from Espressif directly do not and this is the standard AFAIK.