Search found 8 matches

by rainman
Tue Aug 11, 2020 10:39 am
Forum: General Discussion
Topic: ESP32-S2: 802.11mc FTM support?
Replies: 7
Views: 3335

Re: ESP32-S2: 802.11mc FTM support?

Are there any news or forecasts for WIFI-1722 (Time of flight) support ?

I hope it will not be somehow "descoped" because of some silicon bugs (fingers crossed)

Thanks and keep up the nice work you do !
by rainman
Tue Jun 30, 2020 5:26 pm
Forum: Hardware
Topic: Wifi RTT Esp32s2 Wroom
Replies: 2
Views: 1554

Re: Wifi RTT Esp32s2 Wroom

According to the Status page (https://esp32.com/viewtopic.php?p=56361) this should be item WIFI-1722 which is marked as unsupported. We are also very keen to get it available so that we can then us it in our Esp32-S2 devboard https://github.com/StetelThings/Maia-Esp32s2-Devboard. The bad thing is th...
by rainman
Tue Jun 30, 2020 10:51 am
Forum: ESP RainMaker
Topic: We tried ESP2-S2 & Rainmaker. We have questions ...
Replies: 4
Views: 1062

Re: We tried ESP2-S2 & Rainmaker. We have questions ...

I agree with George that Rainmaker is really a game changer especially in scenarios where you wanna make a quick PoC. The Wifi provisioning part is probably the most painful step even though the app helps a lot here. We've found some "glitches" on the Android version that are hopefully ironed-out in...
by rainman
Sun Jun 14, 2020 1:35 pm
Forum: General Discussion
Topic: esp32 s2 DFU update
Replies: 9
Views: 1256

Re: esp32 s2 DFU update

A contribution to this nice community: a way to flash the ESP32-S2 directly from a browser exploiting WebUSB. Built specifically for the ESP32-S2. It automatically switches the dfu mode without the need to connect twice. dfu.stetelthings.com You have to place the ESP32-S2 in boot mode (GPIO0 when co...
by rainman
Mon May 04, 2020 11:09 am
Forum: General Discussion
Topic: esp32-s2 usb driver
Replies: 11
Views: 2979

Re: esp32-s2 usb driver

We played a bit with the USB interface of the ESP32-S2 in ROM bootloader mode. https://youtu.be/s9r2c-85UJM Indeed you should get automatically a serial COM: (on windows) for the CDC-ACM. In addition the chip in bootmode also exposes a DFU interface (see in the video). That needs probably a driver o...
by rainman
Wed Oct 30, 2019 11:55 pm
Forum: ESP-IDF
Topic: esp_wifi_80211_tx() not working with action frame
Replies: 1
Views: 1141

esp_wifi_80211_tx() not working with action frame

When using esp_wifi_80211_tx() to send an arbitrary forged Beacon frame (type=0 subtype=8) everything is fine, but when I attempt to send an ACTION frame (type=0 subtype=13) then I receive the error: wifi: unsupport frame type: c0 Please note that the official documentation claims that action frames...
by rainman
Wed Jul 13, 2016 3:52 pm
Forum: Hardware
Topic: Voltage on MTDI to have logical 1 to drive LDO for VDD_SDIO
Replies: 1
Views: 2986

Voltage on MTDI to have logical 1 to drive LDO for VDD_SDIO

We are designing a board where the ESP32 is getting 3.3V for all power pins except for VDD3P3_CPU which we set to 2.8V. This is needed because all external peripherals work at that voltage. Now we want also use an SPI flash that runs at 1.8V. According to the datasheet we have to put MTDI to logical...
by rainman
Fri Jan 15, 2016 11:27 pm
Forum: Report Bugs
Topic: low ambient temperature - no boot ( bug or future )
Replies: 5
Views: 6948

Re: low ambient temperature - no boot ( bug or future )

Hi Rudy, Nice finding ! I can confirm that our board is also affected by the same issue. If used with our normal ambient temperature (something like 19-20 Celsius) the it doesn't start most of the time. The heat of my hand, place closed to the board, is enough to make it start. I think it is probabl...

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