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raldone01

@ raldone01 @lemmy.world

Posts
4
Comments
177
Joined
2 yr. ago

  • What kind of climate do you prefer?

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  • I guess lowest I would go is -30°C. Ideally something varying between 20°C and -30°C.

  • What kind of climate do you prefer?

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  • Fixed. Blame it on typing this on mobile and being in a rush to the underground.

  • What was that thing you got really good at, and how good are you?

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  • Hahah I guess both. You learn a lot with either. 😅

  • What was that thing you got really good at, and how good are you?

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  • I like to think that I am good at root causing software issues.

  • What kind of climate do you prefer?

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  • Cold*. You can always put on more but once you're naked, well you're naked.

    *Limits apply.

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  • I don't think the promise chain is really needed here.

    I used this script:

     js
        
import Axios from 'axios'
import OldFS from 'fs'
import { PromiseChain } from '@feather-ink/ts-utils'

const fs = OldFS.promises

const image = process.argv[2]
const destination = `http://${process.argv[3]}/vfs/ota`
const now = process.argv[4] === 'now'
const once = process.argv[4] === 'once'

async function triggerUpdate(): Promise<void> {
  console.log('Uploading new binary')
  const file = await fs.readFile(image)

  await Axios({
    method: 'POST',
    url: destination,
    headers: {
      'Content-Type': 'application/octet-stream',
      'Content-Length': file.byteLength
    },
    data: file
  })
  console.log('Finished uploading')
}

(async () => {
  const updateChain = new PromiseChain()
  console.log(`Watching file '${image}' for changes\nWill upload to '${destination}'!`)
  if (once) {
    await triggerUpdate()
    return
  }
  if (now)
    await updateChain.enqueue(triggerUpdate)
  OldFS.watch(image, async (eventType) => {
    if (eventType !== 'change')
      return
    let succ = false
    do {
      try {
        console.log('Change detected')
        await updateChain.enqueue(triggerUpdate)
        succ = true
      } catch (e) {
        console.error(e)
        console.log('Retrying upload')
      }
    } while (!succ)
    console.log('Upload finished')
  })
})()

    Relevent code on the esp:

    You can ignore my cpp stuff and just put this in the handler of the stock webserver.

     cpp
        
auto ota = vfs->addHandler(makeDirectory("ota"));
        {
          ota->addHandler(makeDirect([](auto &con) {
            if (con.req->method != HTTP_POST)
              return HandlerReturn::UNHANDLED;

            // https://github.com/espressif/esp-idf/tree/master/examples/system/ota/native_ota_example/main
            // https://docs.espressif.com/projects/esp-idf/en/latest/esp32/api-reference/system/ota.html
            auto updatePartition = esp_ota_get_next_update_partition(nullptr);
            if (updatePartition == nullptr)
              return sendError(con,500, "No free ota partition found!");
            esp_ota_handle_t otaHandle;
            auto err = esp_ota_begin(updatePartition, con.req->content_len, &otaHandle);
            if (err != ESP_OK)
              return sendError(con, 500, std::string{"Can't start ota update: "} + esp_err_to_name(err), true);

            int receivedBytes = 0;
            do {
              auto end = httpd_req_recv(con.req, buf.data(), buf.size());
              // ESP_LOGE(TAG, "Received %d", receivedBytes);
              // hexDump("RECV:", buf.data(), end);
              if (end <= 0) {
                esp_ota_abort(otaHandle);
                return sendError(con, 500, "Error receiving", true);
              }
              err = esp_ota_write(otaHandle, buf.data(), end);
              if (err != ESP_OK) {
                esp_ota_abort(otaHandle);
                return sendError(con, 500, std::string{"Error writing: "} + esp_err_to_name(err), true);
              }
              receivedBytes += end;
            } while (receivedBytes < con.req->content_len);

            err = esp_ota_end(otaHandle);
            if (err != ESP_OK)
              return sendError(con, 500, std::string{"Failed to end: "} + esp_err_to_name(err), true);

            err = esp_ota_set_boot_partition(updatePartition);
            if (err != ESP_OK)
              return sendError(con, 500, std::string{"esp_ota_set_boot_partition failed: "} + esp_err_to_name(err), true);
            auto ret = sendOK(con);
            FactoryResetServiceCon().reboot(1000 / portTICK_PERIOD_MS);
            return ret;
          }));
        }

    I also used a custom partition table for 2 partitions so that when my program crashes it can just go back to boot the previous version.

    Here it is for reference:

    partitions.csv

     
        
# Name,   Type, SubType, Offset,  Size, Flags
# Note: if you change the phy_init or app partition offset, make sure to change the offset in Kconfig.projbuild
nvs,      data, nvs,     0x011000, 0x006000,
otadata,  data, ota,     0x017000, 0x002000,
phy_init, data, phy,     0x019000, 0x001000,
ota_0,    app,  ota_0,   0x020000, 0x1F0000,
ota_1,    app,  ota_1,   0x210000, 0x1F0000,

    Note: This partition table is for a special model of the ESP32 though.

    Also another disclaimer: This code does not represent my current coding abilities and may be outdated - it worked well though.

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  • Hahahah. Awesome. Have fun! You just need a simple webserver. The builtin one will do and then you use the ota functions of the ESP IDF.

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  • Back in school my friends all flashed their mcus with 4-8MB images over serial with 115200 baud. I set up ota updates over wifi. They were all fascinated by my speedy flashes. However when I offered to help them set it up, not one was interested because their setup was working as is and slow flashing is not a "bad" thing since it gave them an excuse to do other things.

    We are talking minutes vs seconds here.

    The teachers were surprised by my quick progress and iterations. When I told them my "trick" the gave me bonus points but also were not interested in learning how to do ota which was very easy. A simple 20 minute first time setup would have saved sooo much time during the year.

  • Is Google about to destroy the web?

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  • Very interesting. I hope this passes as an actual Standart. I looked around but couldn't find information on how to enable it in the Webbrowser. It just says firefox is not supported.

    Nevermind I found the extension will try it again.

  • Is Google about to destroy the web?

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  • I would love a if there was a standard websites would use to receive donations. An integrated browser addon that track what you visit and gives you a review before distributing funds after each month would be great. It should accumulate money to avoid transaction fees for tiny amounts.

  • Saying "over" on the radio is like the null byte at the end of a string.

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  • I don't think a semicolon is semantically correct in this case. It suggest you want to add something. That's why it is used in programming. You are making statements.

    Maybe we should use a . after return statements to signal the end of our statement stream.

  • Removed

    If you had an irl evil lair or HQ, what would the elevator or dungeon music be? ¡Explain urself!

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  • Why all docker compose files use the managed docker volumes instead of directly mounting a custom directory?

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  • 😏

  • public services of an entire german state switches from Microsoft to open source (Libreoffice, Linux, Nextcloud, Thunderbird)

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  • Ahhh 😅😂

  • public services of an entire german state switches from Microsoft to open source (Libreoffice, Linux, Nextcloud, Thunderbird)

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  • I don't see how this gives any insight into how your subscription price is being used for products relevant to you.

  • public services of an entire german state switches from Microsoft to open source (Libreoffice, Linux, Nextcloud, Thunderbird)

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  • And there could be insight into whether the money is actually used for developing the relevant application.

  • Voyager users, how many up/downvotes do you have recorded on me?

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  • Seems like a fun feature. I have enabled it and will try Voyager for a bit see if I like it more than jerboa.

  • What's the dumbest way you've sustained an injury, and what was the injury?

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  • That sucks.

    Makes me ponder though:

    Humans are more or less designed for nature like mountains/dirt trails. I think sidewalks/asphalt while great designs for society and big cities are actually less ideal for the individual human.

    Since living in the city I have learned to respect wet manhole covers.

  • What's the dumbest way you've sustained an injury, and what was the injury?

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  • I have also broken my pinky twice on the same doorframe on the way from the lunch table to the Xbox 360 in my aunts house. :)

    A third time I only sprained it if I remember correctly.

    Didn't keep me from playing on these days though. 😅