davdav wrote:Hi @rin67630,
I'm currently using ADC1_CH0 and ADC3_CH3 for measuring other analog voltage.
Do you know if the Hall sensor is still usable in this condition?
Thanks

No it isn't usable at all, specially if you switch the input ranges.

On the Lolin32 I wonder how to put the USB UART in sleep mode.
Is it enough to disconnect it from USB?

Kazuya91 wrote:

meneldor wrote: Unfortunately the Lolin32 is not in production anymore.

Really? That would be a pity. Currently plenty of them are still available.

That's actually pretty simple — you have a block device with defined size, and functions to read/write/erase sectors of the block device. Simplest way would be to implement a ring buffer based on this block device. But you want to be able to read the results as a regular file e.g. to send it via FT...

To add to igrr's advice, if all you need to ever do is write a lot of sequential fixed size data then you could also create a custom data partition and use the esp_partition_erase_range() and esp_partition_write() functions to write a log formatted journal, one entry at a time. Ouch, that is absolu...

ESP_Sprite wrote:How do you mean, wake from deep sleep without hardware modifications? Also, what use case would you have to compile sepate things for both cores?

...wake from deep sleep without having to tie a pin to RST.
Compile one core to gather data and the other one to form/transmit data.

SPIFFS or SD-Card? I am planning a data logger with an ESP32 WROOM. It should store one byte every second in a file. At the end of the day, a new file will be created. The file will be retrieved by FTP, then erased. The available SPIFF memory should be enough for the job, but I am woried about the t...

WiFive wrote:https://github.com/espressif/esp-idf/tr ... ocols/sntp

Thank you.
That looks good, albeit the given code do not yet seem to be a directly usable library as we are used to...

I hope somebody with more skills than me, will provide soon an OOB clock example...

Thank you for asking and for reading our comments! What I currently miss on the ESP32 -Provide really linear ADCs starting at zero mV. -Provide differential input ADC. -I/O 5v tolerant. -Wake from deep sleep without HW wiring. For the time being the most important weaknesses are in the compilers: we...

Hi experts here,
we have got many NTP-time libraries available. Most of them come from the Arduino world, some from the ESP 8266.
As I have understood the ESP32 has an own RTC built in, so a specific library would be better than one of the above mentioned, isn't it?

Does that one exist?
Regards