• Hello,
    I'm having trouble with this neat little board.

    WiFi is not working at all neither in AP nor STA mode. I have tried both v91.545 and v91 stable - getting the exact same result. Wifi works just fine using esp-open-rtos under 80 and 160 Mhz

    Attempting to connect to my router:

    var wifi = require("Wifi");
    wifi.connect("simple", {password:"12345678"}, function(err) {
        console.log("connected? err=", err, "info=", wifi.getIP());

    It says "no_ap_found" and callback does not execute. getDetails() does say "connecting" for a brief moment.

      "status": "connecting",
      "ssid": "simple",
      "password": "12345678",
      "rssi": 0, "savedSsid": null }
      "status": "no_ap_found",
      "ssid": "simple",
      "password": "12345678",
      "rssi": 0, "savedSsid": null }
      "mode": "sta+ap",
      "station": "no_ap_found",
      "ap": "enabled",
      "phy": "11n",
      "powersave": "ps-poll",
      "savedMode": "off"

    Strangest of all, AP callback does execute, but the actual AP is not visible by any device.

    >wifi.startAP("test", {authMode:"open", channel:6}, function() {
        console.log("started AP.");
    started AP.
      "status": "enabled",
      "authMode": "open",
      "hidden": false, "maxConn": 4,
      "ssid": "test",
      "password": "",
      "savedSsid": null,
      "stations": [  ]

    Flashed with:

    esptool.py --port /dev/ttyUSB0 --baud 115200 write_flash 0x0000 "boot_v1.6.bin" 0x1000 espruino_esp8266_user1.bin 0x3FC000 esp_init_data_default.bin 0x3FE000 blank.bin

    I've tried "cpuFrequency": 80 too.

      "sdkVersion": "2.0.0(5a875ba)",
      "cpuFrequency": 160, "freeHeap": 10224, "maxCon": 10,
      "flashMap": "4MB:512/512",
      "flashKB": 4096,
      "flashChip": "0xef 0x4016"

    I am hoping this is only me doing something wrong or not doing something :D Will try out some older BINs and report back. Please advise on what else we could try.

    I really appreciate your effort in this project - it is one of very few I donated to.

    The bastard:

    32Mb, $5

  • Compiled my own firmware from latest source - same result.
    Also, wifi.scan() returns an empty object. I have a few APs around for sure.

    [  ]

    Tried with esp_init_data_default.bin at 0x3FC000 and without it. I'm also erasing before every flash.

  • Here's what it does after wifi.connect():

    988179> reconnect
    990305> scandone
    990305> no simple found, reconnect after 1s
    990405> reconnect
    992531> scandone
    992531> no simple found, reconnect after 1s
    992632> reconnect
    994758> scandone
    994758> no simple found, reconnect after 1s
    994858> reconnect

    At least it's trying... Okay.

    [  ]
     74724> mode : sta(5c:cf:7f:de:6a:74)
     74725> add if0
     76851> scandone
  • I think this is a hardware issue. Looking at your board, there is a socket for the wifi antenna to plug in - have you added an aerial?

  • @Wilberforce, he said he could connect with esp-open-rtos, so it would be weird if he would need an antenna now.

    @citizen12123 How are you powering the board? Maybe your power source isn't able to supply enough current?

  • @Wilberforce I have added the antenna - getting the same result. esp-open-rtos works fine with and without the antenna though.

    @CrashingDutchman It's being powered through USB out of my laptop - same power source as with esp-open-rtos. Just tried powering it with 12V 1A adapter - didn't see any improvement. Also erased and re-flashed using the new power source.

    What else can we try? :D

  • Are you 100% sure that your connection details (see your 1st code share in your first post) are correct? I understand that what you posted here is mocked up, but check in your actual code.

    I would suggest to try this code (a bit simpler than yours):

    var wifi = require("Wifi");
    wifi.connect("ssid", {password:"password"}, function(){ console.log("connected"); });

    Then wait for "connected" message.

    Also, make sure you do a wifi.save() to make sure that wifi settings are saved for after a power cycle.

  • Yes - the WiFi details are correct. "simple" is the actual SSID and also is the password. I did try your code snippet.

    I would like to point out, that WiFi credentials get set properly:

      "status": "no_ap_found",
      "ssid": "simple",
      "password": "12345678",
      "rssi": 0, "savedSsid": null }

    Looks like it's unable to use the radio at all somehow.

    [  ]
    >var esp8266 = require("ESP8266");
    =function () { [native code] }
    292141> reconnect
    294267> scandone
    294267> no simple found, reconnect after 1s
    294367> reconnect
    296493> scandone
    296493> no simple found, reconnect after 1s
    296593> reconnect
    298717> scandone
    298717> no simple found, reconnect after 1s
    298817> reconnect

    Oh dear what a riddle.

  • @citizen12123

    I had their Wifi-NodeM board. It detected virtually no Access Points. I concluded the radio was very poor, maybe since it was embedded in the board on the Wifi-NodeM.

    There was an odd trick that got it to work - which I don't fully remember but - it involved shorting a a pin to the hole in the antenna. Do that and reception good.

    This workaround, worked very well, but I felt the chips got very hot. Again, because the chipset is uncovered I couldn't tell you if this is hotter than a nodeMCU board would run.

    Tried to return and get money back, which seller agreed to, but postage terms and costs made it infeasible.

  • @Ollie do you mean shorting the antenna connector? Tried that out of desperation and also flashed espruino_1v85_esp8266_combined_512.bin - issue remains.

  • Enabled WiFi logging

    89478> wifi.on(#ondisconnected)
     89575> reconnect
     91698> scandone
     91699> no simple found, reconnect after 1s
     91699> Wifi event: disconnected from ssid simple, reason beacon_timeout (201) status=no_ap_found
     91702> wifi.on(#ondisconnected)
     91799> reconnect

    Nothing terribly useful. Just checked Micropython on this board - WiFi works great.

  • Yes. On the Wifi NodeM there's a tiny hole in antenna which is embedded in the PCB. I don't know whether I grounded it, or powered it, but one of the two massively improved the reception. Without that, a scan of APs returned 1, or 2 at best, when a NodeMCU would return all in range.

    Odd though, you say Micropython Wifi runs fine on yours, and others seem to have also had success with the Wifi-NodeM running Arduino, so maybe there is an Espruino related quirk on the Robodyn boards.

  • Ordered 3 Wemos d1 minis from different suppliers. Will see how they perform while this remains a mystery...

  • I expect, you'll have no issues there - that's where I went after the Wifi-NodeM. Specifically I wanted an unpinned board, and they've been great.

  • Hi @citizen12123,

    try this code to list APs that your board can find

  • Hello @MaBe,
    I did and it does the same thing - returns an empty array.

    [  ]
  • Wifi works just fine using esp-open-rtos under 80 and 160 Mhz

    Hmm, strange

    If you like you can try 11b and 11g and scan again.

  • You could reflash with your esp-open-rtos and see if that still works.

    Then you know if it is hardware on not...

  • Thank you everybody for your time trying to help out.

    What I mean to say here is that esp-open-rtos works just fine at this moment. As soon as I flash it with Espruino I encounter the wifi problem.

    @MaBe I've already tried changing to b/g/n - doesn't improve anything.

  • I'm trying to use the same hardware, but working with Arduino. It seems to be that it is far from being as functional as a wemos D1 R2... I've tried almost everything, and when asked to robotdyn they sent a link to a wemos d1 example at instructables... my only current guess right now is that it will not work without an external antenna... my only current suggestion is "do not buy/use this hardware", aka "The bastard".

  • Confirmed: at least my robotdyn wifi d1 r2 works (both as AP and STA) only with an antenna attached to it

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RobotDyn D1 R2 ESP8266 - WiFi not working (AP and STA)

Posted by Avatar for citizen12123 @citizen12123