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larry

Member since Sep 2018 • Last active Jun 2019
  • 2 conversations
  • 12 comments

Most recent activity

  • in Projects
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    That sound more than great, I'll try some custom firmware when I'll get some times. Excellent job, it's impressive!

  • in Electronics
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    @AkosLukacs, yeah , I've checked before the batteries, I think they are not dead, (3.4V for all).

    @MaBe, @Gordon , let's try your recommendations, I've found a seller from France on Ebay, very soon I'll tell you if I finally manage to load my batteries.

    Thank's a lot!

    PS: you'r right Gordon, I wanted some batteries with a protection circuit, I hope I'll use then when I'll receive the charger you and Mabe propose.

  • in Electronics
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    Hello all

    I've nearly finish an awesome project with Espruino Pico ;-) ... Now, to get this project as small as possible I've bought some small single cell Lipo batteries (450mAh - 800mah - 1200mah ) for tests.

    But now I really don't know what king of charger I do need for this.

    I've bought this one, but nothing happens when in plug one of my battery . I know I have to be carreful with this king of batteries, and all I can find, I mean, what I've found is mostly online ressources speaking about multiple cells for drones...

    thank's for your advices

  • in ESP32
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    @DrAzzy, ok I'll try your suggestion!

    But I think I changed my mind about in which situation I use Espruino! : I'm not an expert in Microcontroller Stuff and Espruino give me a "so easy way "to play with, but in the case of Lora & LoraWan stuff, I will use the traditional way (I've discovered that VisualStudioCode IDE has an Arduino extension, pretty cool).

    Before doing this, I have ordered an Espruino Pico and, magically, there is no more Serial problems ! but nothing is listed on the "data" board on my personnal TTN console, but it's another problem (maybe I'm too far away from the next Gateway...)

    I use your excellent board to connect the RN2483, it's very nice job, but I think I underestimate the soldering part ! I finally done , but it's not so easy!

    Anyway, I'm continuing doing projects with Espruino and it's so cool to doing this in JavaScript !

  • in ESP32
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    Hi all

    I'm trying to setup an serial connexion to the RN2483A to achieve an LoraWan test with TTN, like this exemple on Espruino site with no result. I've connect TX/RX from @DrAzzy plate to RN2384A TX/RX, power and try :

    var RN2483 = require("RN2483");
    Serial2.setup(9600, { tx:D17, rx:D16 });
    var lora = new RN2483(Serial2);
    lora.getStatus(function(x){console.log(x­);});
    



    and get this result:

    { "EUI": undefined, "VDD": NaN, "appEUI": undefined, "devEUI": undefined,
      "band": undefined, "dataRate": undefined, "rxDelay1": undefined, "rxDelay2": undefined, "rxFreq2_868": undefined }
    



    So I'm trying first to get some console.log from the Serial2 on this ESP32 MCU board .

    I wired GPIO16 and GPIO17 and try this :

    Serial2.setup(9600, { tx:D17, rx:D16 });
    Serial2.on('data', function(data) {
      console.log('Serial2: ', data);
    });
    Serial2.print('/// Hello UART ///');
    



    Well... with no result too :(
    Does someone succeed in this project?

  • in Porting to new Devices
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    @Gordon, ok, now I understand that LoRaWan is built on top of transmit/receive stuff that is already available.

    Well, from now, as I've ordered some RN2483A at this place, with some cool plates made by @DrAzzy, I'll first try implementing loraWan to TTN with Espruino !

  • in Projects
    Avatar for larry

    Alright, it's noted ! - I've ordered all parts for doing some test like your's, I'll investigated too.

  • in Projects
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    @allObjects , I've read (maybe not so carefully) your example code.
    I understand that you are doing node-to-node (no loraWan protocole) communication with 2 RN2309A modules.
    My question is, how can the receiver module knows that is listen to your emitter module ? I mean, wath's happen if another guy in your neighbourhood start sending "lora"message too ?

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