Stephen

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• Updating ESP8266 firmware issue killed my Espruino WiFi

  @Stephen started

  • 18 comments
  • 458 views

  @Gordon replied
• Updating ESP8266 firmware issue killed my Espruino WiFi

  in Pico / Wifi / Original Espruino • 2 weeks, 2 days

  

  No pretty sure it was in normal mode, I tried many times. I also upgraded another one without the x100 change and all went fine. It's a long shot but maybe my mobile phone was too close to it, the guys at esptool said these errors can be caused by electrical interfearance.

• Updating ESP8266 firmware issue killed my Espruino WiFi

  in Pico / Wifi / Original Espruino • 2 weeks, 2 days

  

  I missed all this activity, I just tried again with the latest esptool.py and it seems to have worked. I had forgotten to make the ESP_RAM_BLOCK and FLASH_WRITE_SIZE to 0x100 changes previously. I also added the routing code to an onInit() so that the signal bridge was always in place.

  Thanks as always Gordon, stay safe.

• Updating ESP8266 firmware issue killed my Espruino WiFi

  in Pico / Wifi / Original Espruino • 2 weeks, 5 days

  

  Following the instructions for the Espruino WiFi to update the ESP8266 firmware I seem to have bricked my board.

  The ESP8266.py command

  esptool.py --port COM13 --baud 115200 write_flash --flash_mode dio 0 AiThinker_ESP8266_DIO_32M_32M_20160615_V­1.5.4.bin
  esptool.py v3.0
  Serial port COM13
  Connecting....
  Detecting chip type... ESP8266
  Chip is ESP8266EX
  Features: WiFi
  Crystal is 26MHz
  MAC: 5c:cf:7f:c0:f4:1f
  Uploading stub...

  A fatal error occurred: Invalid head of packet (0x13)

  I can no longer get an AT prompt, the IDE reports 'Prompt not detected - upload failed. Trying to recover...' when I try

  digitalWrite(A14,0); // power off
  digitalWrite(A13,0); // boot mode
  digitalWrite(A14,1); // power on
  Serial2.setup(115200, { rx: A3, tx : A2 });
  Serial2.on('data', function(d) { USB.write(d); });
  USB.on('data', function(d) { Serial2.write(d); });
  Serial1.setConsole();
  

  Is there a way to reflash the ESP8266 without soldering? Or should I just get a new one?
  I would also recommend adding a warning to the http://www.espruino.com/WiFi page letting people know this is a risk.

• The Espruino Book "Making Things Smart" is out now!

  in News • 3 years, 3 months

  

  Waiting for mine to arrive from Amazon, 31st Aug :-)

• Espruino WiFi connect callback before connection established

  @Stephen started

  • 4 comments
  • 1,148 views

  @Gordon replied
• Espruino WiFi connect callback before connection established

  in Pico / Wifi / Original Espruino • 3 years, 7 months

  

  I have been doing some testing on net.connect and find it runs the callback before the connection is established (deliberately erroneous hostname and port in code). I can't then run a registered error event handler. This is counter to the documents that indicate that the callback is executed after the TCP connection is established. I would appreciate some validation that I am not doing anything wrong?

  There is also no way I can see to change the connect timeout, however if I use the AT commands I can catch the error.

  Output:

  **** STARTING ****
  WiFi Connected!
  ["AT+CIPSTART=0,\"TTCP\",\"weeso\",1888\­r\n"
  net client before callback {"type":0,"opt":{"host":"weeso","port":1­888},"sckt":1}
  net client callback {"type":0,"opt":{"host":"weeso","port":1­888},"sckt":1,"conn":true}
  net client disconnected {"type":0,"opt":{"host":"weeso","port":1­888},"conn":true} *** {"type":0,"opt":{"host":"weeso","port":1­888},"conn":true}
  net client disconnected {"type":0,"opt":{"host":"weeso","port":1­888},"conn":true} *** undefined
  net closed, had_error: false
  

  Code:

  var wifi = require("EspruinoWiFi");
  
  function onInit() {
    console.log("**** STARTING ****");
    wifi.connect(WIFI_NAME, WIFI_OPTIONS, function (err) {
      if (err) {
        console.log("WiFi Connection error: " + err);
        return;
      }
      console.log("WiFi Connected!");
      wifi.at.debug();
      var at = wifi.at;
      //at.cmd('AT+CIPSTART=0,"TCP","weeso",18­88\r\n', 10000, (cb) => {
      //  console.log('AT cb '+cb);
      //});
  
      var client = require("net").connect({host: "weeso", port: 1888}, function (skt) {
        console.log('net client callback ' + JSON.stringify(skt));
        //client.write('Hello');
        client.on('error', function (err) {
          console.log("net error ");
          console.log("Error: " + JSON.stringify(err));
        });
        client.on('data', function (data) {
          console.log("net > " + JSON.stringify(data));
        });
        client.on('connected', function(data) {
          console.log("net connect "+JSON.stringify(data));
        });
        client.on('timeout', function (data) {
          console.log("net timeout " + JSON.stringify(data));
        });
        client.on('close', function (data) {
          console.log("net closed, had_error: " + JSON.stringify(data));
        });
        client.on('end', function (err) {
          console.log('net client disconnected ' + JSON.stringify(skt) + ' *** ' + JSON.stringify(err));
        });
      });
      console.log('net client before callback ' + JSON.stringify(client));
  
      });
  }