Search found 59 matches

by kbaud1
Mon May 25, 2020 3:53 pm
Forum: General Discussion
Topic: dedicated connection. reducing unnecessary traffic to the esp32
Replies: 0
Views: 44

dedicated connection. reducing unnecessary traffic to the esp32

Laptop using wi-fi for internet access looses connection to internet when a second dongle is used to to connect to an ESP32 at the same time. Also: Reducing unnecessary traffic to the ESP32 to reduce energy consumption and improve cpu availability. We noticed that when a Windows computer connects to...
by kbaud1
Thu May 14, 2020 4:33 pm
Forum: General Discussion
Topic: move file from SPIFFS to OTA partition
Replies: 1
Views: 229

move file from SPIFFS to OTA partition

Our product has a customer pc (usually windows 10) that connects wirelessly to an esp32. We want to be able to update the firmware from time to time without having to run a ftp or web server on the customer machine (and all the problems that entails). Our windows application already has a tcp connec...
by kbaud1
Sat May 09, 2020 12:36 am
Forum: General Discussion
Topic: undocumented UART Hardware problem?
Replies: 5
Views: 776

Re: undocumented UART Hardware problem?

The problem has been observed on both UART1 and UART2. It has not been tested on UART0.


How can I be sure to have memory barriers between reads when writing in C code?"
by kbaud1
Fri May 08, 2020 5:39 am
Forum: General Discussion
Topic: What would you like to see in The Next Chip?
Replies: 367
Views: 144404

Re: What would you like to see in The Next Chip?

The ESP target low cost embedded systems. IOT. They don't need to run Linux and do everything. That would make them too expensive. The bones of the ESP32 are pretty solid. I suggest focusing on the software and only make small changes to the hardware. - boot from network (flash chip optional. ssid/p...
by kbaud1
Mon May 04, 2020 11:43 pm
Forum: General Discussion
Topic: undocumented UART Hardware problem?
Replies: 5
Views: 776

undocumented UART Hardware problem?

We ran into a problem with the UART hardware that doesn't seem documented. In our testing this problem only appears when we also use wifi, but we think it might just be triggered by multitasking in general, not necessarily wifi specifically. The problem is that sometimes when we read the FIFO, its h...
by kbaud1
Mon Mar 23, 2020 3:32 pm
Forum: General Discussion
Topic: Reading the UART
Replies: 1
Views: 607

Reading the UART

I ran into a problem today with the ESP32 that had me pulling out my hair for quite some hours. I ended up devising the following test program in trying to trace it: void app_main() { // Config 2 UARTs uart_config_t uart_config = {1020833, UART_DATA_8_BITS, UART_PARITY_DISABLE, UART_STOP_BITS_1, UAR...
by kbaud1
Fri Feb 07, 2020 4:57 pm
Forum: General Discussion
Topic: what is the purpose of the factory AP ("ESP_6C8A79")
Replies: 5
Views: 1298

Re: what is the purpose of the factory AP ("ESP_6C8A79")

Why is there a lack of applications using the new S2 even though the code base and much of the hardware is the same? Apparently, a built-in USB interface is just not as important as the hardware it replaced? What if the factory code that is already loaded on the ESP32 came with practical OTA (Simple...
by kbaud1
Tue Dec 03, 2019 3:21 pm
Forum: General Discussion
Topic: what is the purpose of the factory AP ("ESP_6C8A79")
Replies: 5
Views: 1298

Re: what is the purpose of the factory AP ("ESP_6C8A79")

but in order to use OTA update, you paradoxically have to use the UART to first run the appropriate AT commands that trigger the SmartConfig (ESP Touch). It will not run wirelessly from the factory. You must physically connect a uart first. Yes, they can preload the application. wonder what that cos...
by kbaud1
Mon Dec 02, 2019 2:04 pm
Forum: General Discussion
Topic: what is the purpose of the factory AP ("ESP_6C8A79")
Replies: 5
Views: 1298

what is the purpose of the factory AP ("ESP_6C8A79")

When you power up a factory fresh WROOM32 module (I have tested 6 so far from various suppliers, both 32 and 32D versions) it broadcasts an AP with an SSID consisting of "ESP_" and part of it's MAC address. For example, "ESP_6C8A79". If you connect a phone or pc to that AP, you are assigned an IP. u...
by kbaud1
Tue Nov 19, 2019 2:22 pm
Forum: General Discussion
Topic: OTA of factory image
Replies: 4
Views: 800

Re: OTA of factory image

so what do these factory APs do? I assume they are useful for something?

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