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    tobozo
    @tobozo
    om nom nom nom https://www.hackster.io/arundale/sqlite3-library-for-esp32-arduino-core-a76ad1
    requires a SD Card of course ^_^
    Manfred Müller-Späth
    @mamuesp
    @tobozo - Too bad ... would be nice to use it on Mongoose-OS together with some bigger Flash. Who needs GB of data on an ESP32? And it's a pity it is always connected to the Arduino Framework ... :flushed:
    tobozo
    @tobozo
    you mean memory-wise ?
    there's still the m$ version though https://github.com/Azure/iot-edge-sqlite
    Manfred Müller-Späth
    @mamuesp
    No, storage flash. I use the ODROID-GO as my favorite prototyping device (don’t need much pins as I use mainly SPI and I2C with GPIO extenders and an interrupt pin), so it has 16MB flash - that would be enough for some nice scenarios, no SD-Card needed there ...
    tobozo
    @tobozo
    What scenario on the ESP32 could possibly use gigabytes of SQLite data ?
    not a web server since filesystem access is enough
    Manfred Müller-Späth
    @mamuesp
    I don’t know - so that’s the question why the SQLite lib is only using an SD-Card. But I think it’s because of the Arduino awareness … addtional filesystems are not very well known there in conjunction with „normal“ flash chips, so the obvious is used ...
    tobozo
    @tobozo
    maybe for someone porting code logic from another language onto an IoT, for database reimport purpose ?
    when I played with the video format for m5stack I was surprised how fast the file seek was, it was much faster than opening a bunch of files with the same weight
    Manfred Müller-Späth
    @mamuesp
    Well, and I’m using LFS on my device with Mongoose-OS - this is also faster than SPIFFS.
    tobozo
    @tobozo
    LFS ? reminds me of Amiga
    Manfred Müller-Späth
    @mamuesp
    https://github.com/ARMmbed/littlefs
    tobozo
    @tobozo
    ok it's just another homonym :D
    although it could be related http://www.amiga-stuff.com/text/fs-creators/LFS.doc
    stonemull
    @stonemull
    good evening folks
    stonemull
    @stonemull
    I have a stupid question regarding the larger battery module, do I use it with the regular battery module (stack back) and is there anything to be cautious about regarding cell balance for the 2 batterys ?
    tobozo
    @tobozo
    @stonemull I'm quite sure the large battery module is a replacement of the small one, so it's probably not designed for cell balancing.
    stonemull
    @stonemull
    the larger battery module does not have GPIO connectors like the rear, so its not a standalone replacement as you need both modules, I was only talking about "balancing" when you first connect them, both batterys have an onboard BMS anyway, just pulled it apart and measured voltage on the internal battery pins on the header and both cells are at 4.08v, so they are just paralleled. All good. just be nice to find this information somewhere.
    Ulrich Rosenbaum
    @jsdungeon
    Not M5 but very nice as well:
    https://www.wifiboy.org/
    Manfred Müller-Späth
    @mamuesp
    Hm ... Case? And where to buy? I think I'm stuck witb my ODROID-GO because of it's good setup, quality and price, the M5Stack crew presents one gadget after another, but targets the far east, because most things you need to buy via Aliexpress abd you wait 2-3 weeks until delivery. This I don't like ... Hardkernel on the other hand are deliverung from Southkorea in one week to Germany and are handling the customs professionally via FedEx - and they established european/german distributors. This is how I may use their module (even with the GameBoy case) as base for our pilot project with our customers.
    tobozo
    @tobozo
    can't buy unless close to Japan or Taiwan ?
    Ulrich Rosenbaum
    @jsdungeon
    I am close to it in a way ;-)
    I might be biased because Galaxian / Galaga is my favorite retro game ;-)
    Ulrich Rosenbaum
    @jsdungeon
    BME680 Bosch sensor - does anyone has experience with this one?
    lukasmaximus89
    @lukasmaximus89
    Hi all I'm lukas recent newcomer to the m5stack team. Just discovered this chat through reddit. Look forward to chatting here and hearing your feedback about M5stack products
    tobozo
    @tobozo
    @jsdungeon I played with a BM680 sensor, if you don't mind polluting your build environment with closed source binaries from bosh in order to just use the gas sensor it's fine
    otherwise it's just a very expensive BM*280
    welcome @lukasmaximus89 :-)
    lukasmaximus89
    @lukasmaximus89
    Hi @tobozo admire your awesome work with video playback on the m5
    tobozo
    @tobozo
    thx ! most of the work was made upfront by @mhageGH
    Ulrich Rosenbaum
    @jsdungeon
    Welcome @lukasmaximus89 :-)
    Ulrich Rosenbaum
    @jsdungeon
    @tobozo thanks for your feedback. Which sensor would you recommend for a precise air quality (PM2.5) monitoring?
    tobozo
    @tobozo
    I don't know I've only tested two different types of sensor so far
    a basic one that came with a 37-in-1 sensor kit, needed 8 hours to get 'hot'
    I tried to apply the same code to the BM*680 and only got erratic readings
    don't have much experience out of that anyway
    Ulrich Rosenbaum
    @jsdungeon
    ok thank you, I'll do some research on that
    tobozo
    @tobozo
    yet another mongoose thingy https://www.erlang-solutions.com/products/mongooseim.html
    Manfred Müller-Späth
    @mamuesp
    @tobozo - Yeah, these small animals seem to enjoy great popularity as name-givers. :wink:
    lukasmaximus89
    @lukasmaximus89
    Anyone here going to 35C3? I'll be there doing some M5Stack workshops
    Ulrich Rosenbaum
    @jsdungeon
    @lukasmaximus89 Where will it take place?
    lukasmaximus89
    @lukasmaximus89
    Hi Ulrich, it will take place in Leipzig, Germany from the 27th to the 30th. I'll also be visiting makerspaces/hackerspaces in Berlin and Leipzig. So if anyones around it would be great to meet up.
    tobozo
    @tobozo
    https://www.lowjs.org/
    Ulrich Rosenbaum
    @jsdungeon
    Hi Lukas, thank you for telling me but I've been too far away - and now I'm even around 11h flight time away from Leipzig ;-)
    How was it?
    lukasmaximus89
    @lukasmaximus89
    Hey guys CCC was great, a bit overwhelming for my first time, but I will definitely attend again. The european hacker/open source scene is very impressive, such diversity an passion at the event. I had young an old attending the M5Stack workshop and hope to do more community outreach in Europe this year.
    @tobozo the lowjs looks cool, Have you been able to get it running on M5Stack?