Search found 30 matches

by PaulNi
Sat Nov 16, 2019 11:53 am
Forum: General Discussion
Topic: Sharing a nifty trick with ULP coprocessor
Replies: 3
Views: 366

Re: Sharing a nifty trick with ULP coprocessor

DerSpatz wrote:
Thu Nov 14, 2019 11:41 pm
Sounds interesting. How coarse is the rotary encoder, in bits?
Not really suitable as an encode, but more like a position switch. I managed to get 4 positions reliably readable with a neodymium magnet
by PaulNi
Sun Nov 10, 2019 4:09 pm
Forum: General Discussion
Topic: Sharing a nifty trick with ULP coprocessor
Replies: 3
Views: 366

Sharing a nifty trick with ULP coprocessor

Hello everyone, Few years ago, I found out that the internal Hall sensor in esp32 can in fact be used as a limit switch, or coarse rotary position encoder. And the best about that is that it can be read by ULP coprocessor in deep sleep to wake the device up. You just have to position the esp32 near ...
by PaulNi
Thu Nov 07, 2019 11:09 pm
Forum: General Discussion
Topic: Good looking display
Replies: 2
Views: 247

Re: Good looking display

I am looking for any good looking display solution. Popular lcd tft displays, that i could connect via FT80x, have terrible contrast and looking angles. Monochrome oled displays (like WEO012864K) looks good but are relatively small and mostly described as end of production. Displays from cellphones...
by PaulNi
Fri Sep 27, 2019 6:54 am
Forum: General Discussion
Topic: [JavaScript] JSON parsing faster alternative
Replies: 6
Views: 373

Re: [JavaScript] JSON parsing faster alternative

I think getting it parsed faster will not help much.

You biggest concern should be the IO bottleneck. Think of streaming the json to some parser before rewriting the parser itself
by PaulNi
Thu Sep 26, 2019 9:37 pm
Forum: General Discussion
Topic: What would you like to see in The Next Chip?
Replies: 311
Views: 100906

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

how you think about WiFi 6 ? Just any more complete support of WiFi is better. You will be competing on the completeness of support of the WiFi stack and flawlessness of its functioning with all upcoming contenders. We already see a problem with 802.11b only devices, or devices that had 802.11g and...
by PaulNi
Mon Sep 16, 2019 2:17 pm
Forum: General Discussion
Topic: Met guys in Shenzhen claiming making a 100% synchronous refresh free DRAM
Replies: 2
Views: 280

Re: Met guys in Shenzhen claiming making a 100% synchronous refresh free DRAM

Are they going to put a serial interface on it? All seem to be parallel. I think it will not make a big problem for them to put SPI/QSPI iface inside, if they will see big enough market there. I surely remember they were talking something about MCU market and some form of serial iface was at least ...
by PaulNi
Sun Sep 15, 2019 11:52 am
Forum: General Discussion
Topic: Met guys in Shenzhen claiming making a 100% synchronous refresh free DRAM
Replies: 2
Views: 280

Met guys in Shenzhen claiming making a 100% synchronous refresh free DRAM

http://www.xingmem.com/en/product_xm7a.php Quite an interesting development, what do you think? Inside the chip, there are multiple banks one of which is refreshed during each clock cycle. When read comes when for the bank being refreshed, its content is restored using ECC during the same clock cycl...
by PaulNi
Sat Aug 17, 2019 9:49 am
Forum: General Discussion
Topic: Is there anybody in Espressif with IEEE cred?
Replies: 0
Views: 276

Is there anybody in Espressif with IEEE cred?

Hi guys, I've been watching with intense interest about the new Ethernet standard called 802.3cg 10SPE. It is a MULTIDROP ETHERNET standard for short range, low speed embedded applications which are currently served by serial protocols over RS485 like ModBus, or CanBus. As an embedded shop, we can't...
by PaulNi
Tue Aug 13, 2019 8:18 am
Forum: General Discussion
Topic: Realtime MP3 encoder 48kHz Stereo
Replies: 8
Views: 2313

Re: Realtime MP3 encoder 48kHz Stereo

Very impressive! Back in my high school years, when Shenzhen was still pumping out MP3 players, there were makers of very cheap codec chips that were connecting to common microcontrollers and were handling MP3 decoding for them over serial or parallel. A year ago, I had a need to find one, but to my...

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