Search found 583 matches

by PeterR
Thu Oct 15, 2020 10:45 am
Forum: ESP-IDF
Topic: Only receive udp multicasts which I transmit
Replies: 1
Views: 317

Re: Only receive udp multicasts which I transmit

The good old 'switch it (the switch) off and on again'!
by PeterR
Wed Oct 14, 2020 11:30 pm
Forum: General Discussion
Topic: ESP32 pico D4 SoC heat problem
Replies: 4
Views: 732

Re: ESP32 pico D4 SoC heat problem

Buy a development board & measure! On menuconfig set CPU speed to max & then max your inputs & burn that mother! If you have a mechanical engineer on hand then you can get a very good idea from his FEA. I find it quicker & easier to put a resistor in a package & match the max device/circuits thermal...
by PeterR
Wed Oct 14, 2020 11:00 pm
Forum: ESP-IDF
Topic: wifi task on core0 influences precessing speed of core1 tasks
Replies: 3
Views: 509

Re: wifi task on core0 influences precessing speed of core1 tasks

Wifi/BT sucks IRAM. Couple of years ago I was told that Wifi can now execute outside of IRAM (which is great as before you were otherwise stuffed through lack of IRAM) but now might introduces performance issue. So maybe u max IRAM & then hit PSRAM issues. So there are ways in which 'independent cor...
by PeterR
Wed Oct 14, 2020 4:14 pm
Forum: ESP-IDF
Topic: Only receive udp multicasts which I transmit
Replies: 1
Views: 317

Only receive udp multicasts which I transmit

Using: /examples/protocols/sockets/udp_multicast Configured the example to listen for a multicast which I know is transmitted by other devices on my network. The example does not display the other device's multicast but happily displays its own broadcast (made when RX times out). I (386506) multicas...
by PeterR
Tue Oct 13, 2020 8:50 pm
Forum: General Discussion
Topic: Is it possible to ESP32 read a file from a computer over the lan ?
Replies: 5
Views: 749

Re: Is it possible to ESP32 read a file from a computer over the lan ?

Hi, That file has some information about HW and sensors that should be monitored. Initial idea was to capture ethernet communication between MRI and computer, but it is forbidden by supplier I'd check that contract! Perhaps you would just like to monitor your network for viruses (etc) & post a Wires...
by PeterR
Tue Oct 13, 2020 10:07 am
Forum: General Discussion
Topic: Is it possible to ESP32 read a file from a computer over the lan ?
Replies: 5
Views: 749

Re: Is it possible to ESP32 read a file from a computer over the lan ?

Today I have an RPi Zero doing this job, but the idea is to replace it by an ESP32. How does the RPi Zero read the file ATM? If all else fails you could set up an FTP server on the computer That would have been my first choice but you say that additional programs are not allowed. Shame you cannot a...
by PeterR
Mon Oct 12, 2020 10:12 pm
Forum: ESP-IDF
Topic: MQTT configure connection parameters not working
Replies: 2
Views: 351

Re: MQTT configure connection parameters not working

You need to supply the initialisers. Also would help to know if you are compiling C or C++. Something in the structure wants to be true or else you get the DNS error. memset() is always a good idea but in your case you want a member to be true. Won't take you long to examine the structure & trial & ...
by PeterR
Mon Oct 12, 2020 12:18 pm
Forum: General Discussion
Topic: Chrome browser refuses IDF Websocket upgrade response
Replies: 5
Views: 934

Re: Chrome browser refuses IDF Websocket upgrade response

Thanks, that works for me. For anyone following; I had to change the uri initialiser: static const httpd_uri_t mqttHandler = { .method = HTTP_GET, .handler = mqtts_process, .user_ctx = NULL, .is_websocket = true, .handle_ws_control_frames = false, .subprotocol = "mqttv3.1" }; & boost the header buff...
by PeterR
Mon Oct 12, 2020 11:52 am
Forum: General Discussion
Topic: How safe is esp_restart()?
Replies: 3
Views: 559

Re: How safe is esp_restart()?

was lookin for the 1 second pause you are talking about, is this RTC timer inside esp_restart_noos(void)? No idea & why care? Anyway, if esp_restart is not a good idea, what option do I have? esp_restart is perfectly ok. The problem is your task and/or your FLASH strategy. Tell your task to stop an...
by PeterR
Mon Oct 12, 2020 11:26 am
Forum: General Discussion
Topic: ESP32 mqtt client ws_read() failure
Replies: 18
Views: 3344

Re: ESP32 mqtt client ws_read() failure

Hi, The patch does not apply to my IDF: SHA-1: 84b51781c80740fda92784dafcfc96c13b0d8b66 The patch needs to be applied to latest IDF: SHA-1: 8bc19ba893e5544d571a753d82b44a84799b94b1 If I swap over to latest IDF & make -j8 flash then: The following Python requirements are not satisfied: gdbgui==0.13.2...

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