alexrlopez86

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• stm32f3discovery hc-sr 04 not work

  @alexrlopez86 started

  • 6 comments
  • 3,411 views

  @Gordon replied
• stm32f3discovery hc-sr 04 not work

  in General • 9 years, 2 months

  

  tested the code and the function "SetWatch" does not work in stm32f3discovery

• stm32f3discovery hc-sr 04 not work

  in General • 9 years, 2 months

  

  does not fail simply does not work ,does not display output

• stm32f3discovery hc-sr 04 not work

  in General • 9 years, 2 months

  

  Hello everyone
  sorry if I do not extend (the English is not my forte)
  not know the cause but the "HC-SR04" does not work with 1.70 or 1.71 espruino 27th Sep in stm32f3discovery. espruino 1.71 significantly improves the fault persists, tested the code and it works in ministm32_32

  Test code

  var sensor = require("HC-SR04").connect(A0,A1,functio­n(dist) {
  console.log(dist+" cm away");
  });
  setInterval(function() {
  sensor.trigger(); // send pulse
  }, 500);

• connection problems with HY-MINISTM32V 3.2

  @alexrlopez86 started

  • 42 comments
  • 13,734 views

  @Gordon replied
• uv1316t control

  @alexrlopez86 started

  • 2 comments
  • 2,675 views

  @DrAzzy replied
• uv1316t control

  in General • 9 years, 6 months

  

  I'm trying to do this

  http://qlfecv.wordpress.com/2012/11/14/r­eceptor-45-850-mhz-con-sintonizador-tv-a­nalogica-y-arduino/

  is arduino code

  I have as follows

  function get_freq(div){
   return div*50-38900;
  }
  function get_band(fr){
   var bb;
   if (fr<110000)//fvhf
   bb=0x01;
   else if (fr<407000)
   bb=0x02;//VHF_H
   else
   bb=0x04;//UHF
   return bb;
  }
  
  function get_low(fr){
   var lo;
   var div;
   lo=fr+38900; // add FI
   div=lo/50;
   return (div & 0x00ff);
  }
  
  function get_high(fr){
   var lo;
   var div;
   lo=fr+38900; // add FI
   div=lo/50;
   return (div & 0xff00)>>8;
  }
  
  function mostrar(pos){
   var fr;
   var i;
   
    fr=get_freq(pos)*1000;
   i=fr/1000000;
   fr=fr%1000000;
   if (i<100)
   print(" ");
   print(i);
   print(".");
   i=fr/1000;
   fr=fr%1000;
   if(i==0)
   print("000");
   else if (i<10){
   print("00");
   }else if (i<100)
   print("0");
   if (i)
   print(i);
   print(".000 Hz");
   }
  
  function tuner(fr)
  {
    I2C1.writeTo(0xC2,[get_high(fr),get_low(­fr),0xCC,get_band(fr)]);
  }
  I2C1.setup({scl:B6, sda:B7}); // Setup I2C
  I2C1.writeTo(0xC2,[0xFF]);
  

  The function "tuner" does the major work but it does not seem to work since the tuner does not alter his tencion.
  This one is a project that I would like to complete. If someone can check my code he would be grateful for it very much

• connection problems with HY-MINISTM32V 3.2

  in General • 9 years, 7 months

  

  Hello again here I put the changes in detail

  usb_conf.h
  before
  
  [#define](http://forum.espruino.com/sear­ch/?q=%23define) IMR_MSK (CNTR_CTRM  | CNTR_WKUPM |/* CNTR_SUSPM | CNTR_ERRM  | */CNTR_SOFM | /*CNTR_ESOFM |*/ CNTR_RESETM )
  After
  [#define](http://forum.espruino.com/sear­ch/?q=%23define) IMR_MSK (CNTR_CTRM  | CNTR_WKUPM | CNTR_SUSPM | CNTR_ERRM  | CNTR_SOFM | CNTR_ESOFM | CNTR_RESETM )
  

  jswrap_object.c
  before
  
  /*JSON{ "type":"method", "class": "Object", "name" : "hasOwnProperty",
           "description" : ["Return true if the object (not its prototype) has the given property.","NOTE: This currently returns false-positives for built-in functions in prototypes"],
           "generate" : "jswrap_object_hasOwnProperty",
           "params" : [ [ "name", "JsVar", "The name of the property to search for"] ],
           "return" : ["bool", "True if it exists, false if it doesn't"]
  }*/
  bool jswrap_object_hasOwnProperty(JsVar *parent, JsVar *name) {
  
    JsVar *propName = jsvAsArrayIndex(name);
  
    bool contains = false;
    if (jsvHasChildren(parent)) {
      JsVar *foundVar =  jsvFindChildFromVar(parent, propName, false);
      if (foundVar) {
        contains = true;
        jsvUnLock(foundVar);
      }
    }
  
    if (!contains) { // search builtins
      char str[32];
      jsvGetString(propName, str, sizeof(str));
  
      JsVar *foundVar = jswFindBuiltInFunction(parent, str);
      if (foundVar) {
        contains = true;
        jsvUnLock(foundVar);
      }
    }
  
    jsvUnLock(propName);
    return contains;
  }
  
  After
  
  /*JSON{ "type":"method", "class": "Object", "name" : "hasOwnProperty",
           "description" : ["Return true if the object (not its prototype) has the given property.","NOTE: This currently returns false-positives for built-in functions in prototypes"],
           "generate" : "jswrap_object_hasOwnProperty",
           "params" : [ [ "name", "JsVar", "The name of the property to search for"] ],
           "return" : ["bool", "True if it exists, false if it doesn't"]
  }*/
  bool jswrap_object_hasOwnProperty(JsVar *parent, JsVar *name) {
    char str[32];
    jsvGetString(name, str, sizeof(str));
    //JsVar *propName = jsvAsArrayIndex(name);
  
    bool contains = false;
    if (jsvHasChildren(parent)) {
      JsVar *foundVar =  jsvFindChildFromVar(parent, str, false);
      if (foundVar) {
        contains = true;
        jsvUnLock(foundVar);
      }
    }
  
    if (!contains) { // search builtins
      
      //jsvGetString(propName, str, sizeof(str));
  
      JsVar *foundVar = jswFindBuiltInFunction(parent, str);
      if (foundVar) {
        contains = true;
        jsvUnLock(foundVar);
      }
    }
  
    //jsvUnLock(propName);
    return contains;
  }
  

  functional today
  a greeting

• connection problems with HY-MINISTM32V 3.2

  in General • 9 years, 7 months

  

  Hello Gordon and changed the source of code and it works. and changed the following files: line 76 usb_conf.h and changed jswrap_json.c/h vesion 22.4.2014 .
  works, but the failure of screen(display shows rain)

  a greeting
  modified attached code
  http://picfacil.net46.net/Espruino-maste­r_23_4_2014.7z

• connection problems with HY-MINISTM32V 3.2

  in General • 9 years, 7 months

  

  connection problems with HY-MINISTM32V 3.2" only works in Windows 7 and Linux with the HY - MINISTM32V firmware 2.4". Windows with the HY - MINISTM32V firmware 3.2 "detects the plate but not connected and Linux mint does not detect it

  tested 22.4.2014
  Greetings I hope to be of help