Search results for:

Thanks very much @Gordon

I've use the digitalWrite(TX_ENABLE_PIN, 1)
With higher than 9600 baud rate, some frame are lost and display do not completely refresh.
It does not occur at 9600.

Alfazeta display are compatible with espruino👏🏼🎉 and with a simple way...
I love simple things.

Ok it works, i've used your idea and tried with other value.
For 9600 baud, i've added 13
For 19200 baud, 7

I'll try with a pin in high

No oscilloscope :(
i've tried with low baudrate: idem

Sorry it does not work
there is no callback on serial therefor you pulse on the TX_ENABLE_PIN ok.
but initiate the serial with the TX pin ...
i've tried this

var TX_ENABLE_PIN = A8;
var TX_PIN = B6;

function sendData(data) {
	digitalPulse(TX_ENABLE_PIN,1, (data.length+1)*10/19200);
	Serial1.write(data);
	console.log("envoie data", data.toString());
}

function onInit() {
	Serial1.setup(19200,{tx:TX_PIN});
	setInterval(sendData, 2000, [0x80,0x87,0xFF,0x01,0x01,0x01,0x01,0x7F­,0x7F,0x7F,0x8F]);
}

is it good or i can't use serial1 with usb plugged?

i do not put it online, for share (i'm lazy guy), i give it here...
the code is a bit confuse... it show all the alphabet char...
but draws a transition between chars (line by line with 20ms between each frame)...
but sure the code is working and draws chars on flipdot :)

[#include](http://forum.espruino.com/sea­rch/?q=%23include) <SoftwareSerial.h>

int compteurG = 0;
int compteur = 0;
int a = 0;
int ncar = 27;
boolean drapo = false;
byte lettreA[7], lettreB[7];

// assemble message
byte msg [11] = {
  0x80,    // start byte
  0x87,    // send byte and refresh
  0xFF,    // to all display adress
  0x01,    // first data thingy to display, is non printable ASCII
  0x01,
  0x01,
  0x01,
  0x01,
  0x01,
  0x01,
  0x8F     // end byte
};

byte charSet[][7] = {
  {0x0, 0x0, 0x18, 0x14, 0x14, 0x2e, 0x0},
{0x8, 0x14, 0x14, 0xc, 0x34, 0xa, 0x0},
{0x0, 0x0, 0x18, 0x4, 0x4, 0x3a, 0x0},
{0x8, 0x8, 0x8, 0xc, 0xa, 0x1c, 0x0},
{0x0, 0x0, 0x18, 0x1c, 0x4, 0x1a, 0x0},
{0x10, 0x28, 0x18, 0x8, 0xc, 0xa, 0x4},
{0x18, 0x1c, 0x10, 0x38, 0x14, 0x14, 0x8},
{0x8, 0x14, 0x14, 0xc, 0x14, 0x32, 0x0},
{0x8, 0x0, 0x8, 0x8, 0xc, 0x32, 0x0},
{0x8, 0x0, 0xc, 0x8, 0x18, 0xc, 0xc},
{0x0, 0x24, 0x14, 0xc, 0x14, 0x22, 0x0},
{0x8, 0x14, 0x14, 0x14, 0x8, 0x34, 0x0},
{0x0, 0x0, 0x0, 0x34, 0x2a, 0x2a, 0x0},
{0x0, 0x0, 0x0, 0x18, 0x14, 0x36, 0x0},
{0x0, 0x0, 0x58, 0x34, 0x24, 0x1a, 0x0},
{0x0, 0x0, 0x1c, 0x14, 0x1e, 0x24, 0x4},
{0x0, 0x0, 0x1c, 0x14, 0x3c, 0x12, 0x10},
{0x0, 0x0, 0x1c, 0xc, 0xc, 0x37, 0x0},
{0x0, 0x0, 0x8, 0x14, 0x12, 0x2c, 0x0},
{0x8, 0x3c, 0x8, 0x8, 0x8, 0x34, 0x0},
{0x0, 0x0, 0x0, 0x14, 0x14, 0x1e, 0x0},
{0x0, 0x0, 0x0, 0x34, 0x14, 0xa, 0x0},
{0x0, 0x0, 0x2a, 0x2a, 0x2a, 0x15, 0x0},
{0x0, 0x0, 0x14, 0x8, 0x14, 0x22, 0x0},
{0x0, 0xa, 0xa, 0xc, 0xc, 0xa, 0x4},
{0x0, 0x0, 0x3c, 0x10, 0x8, 0x3c, 0x0},
  {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}
};

[#define](http://forum.espruino.com/sear­ch/?q=%23define) TX_ENABLE_PIN 3            // define the EIA-485 transmit driver pin
[#define](http://forum.espruino.com/sear­ch/?q=%23define) LED_PIN 13

// SoftwareSerial rs485(RO, DI);
SoftwareSerial rs485(4, 2); // pins on rs485 module ->

void setup() {
  pinMode(TX_ENABLE_PIN, OUTPUT);  // driver output enable
  rs485.begin (19200);              // vitesse com
  Serial.begin(9600);
  pinMode(LED_PIN, OUTPUT);
  // si pas de print softwareSerial ne fonctionne pas
  Serial.println("7x7 flipdots from Alfazeta");
}

void loop() {
  digitalWrite (TX_ENABLE_PIN, HIGH);     // enable transmit driver
  digitalWrite (LED_PIN, HIGH);
  
  // change les lettres tous les 7 tours
  // remplit les buffers de lettre pour anim de transition de caractère
  if (compteurG%7 == 0) {
    for (int i=0;i<7;i++){
      lettreA[i] = charSet[compteur%ncar][i];     // caractère avant
      lettreB[i] = charSet[(compteur+1)%ncar][i]; // caractère après
    }
    compteur++; // compteur du caractère à afficher dans charSet
  }
  
  for (int i = 3; i <= a%7+3; i++) { // nbr bits trame
    msg[i] = lettreB[i-3];
  }
  for (int i = a%7+4; i < 10; i++) { // nbr bits trame
    msg[i] = lettreA[i-3];
  }
  // envoie la séquence msg[] à l'afficheur
  for (int i = 0; i < 11; i++) {
    rs485.write(msg[i]);                // flip display print
    //Serial.print(msg[i],HEX);
    //Serial.print(" ");
  }
  //Serial.println();
  
  // gestion du buffer
  while (!(UCSR0A & (1 << UDRE0)))  // Wait for empty transmit buffer
    UCSR0A |= 1 << TXC0;  // mark transmission not complete
  while (!(UCSR0A & (1 << TXC0)));   // Wait for the transmission to complete

  digitalWrite(TX_ENABLE_PIN, LOW);       // disable transmit driver
  digitalWrite(LED_PIN, LOW);

  if (compteurG % 7 == 0) {
    // si lettre affichée au complet
    delay(700);
  } else {
    // si en cours de transition de lettre
    delay(20);
  }

  if (compteurG >= 7) { compteurG = 0; } else { compteurG ++;}
  if (a >= 7) { a = 0; } else { a ++;}
  if (compteur > ncar) { compteur = 0;}
}

@Gordon, the 7x7 display is around 80€ wo VAT + 23€ for shipping to France + paypal fee
there is an USB version for 5€ more.

the baud rate is 9600 or 19200, 38400, 57600 (physical dipswitch on the board)
there is no fonts for the display, it's just a screen, you have to draw your font and convert char to bits

by ex.
Send all white dots to all connected panels (address 0xFF) and turn dots as soon as data is received.

0x80 0x87 0xFF 0x7F 0x7F 0x7F 0x7F 0x7F 0x7F 0x7F 0x8F

0x80: header
0x87: command (show)
0xff: address (panel)
7 * 0x7f: display data "b01111111"
0x8f: end char

therefor your exemple need to be converted from hex value to 0/1.
is it good way?

parseInt(num, baseFrom).toString(baseTo);

regards

é.

Hello,

I've worked/played with a flipdot display from alfazeta (7x7 dots) with an arduino. The display is driven by an rs485 protocole and specific ordered bits...
I would like to use an espruino to do it again.
On arduino we use a software serial
I've read that there is no software serial on espruino
Do i have to use the serial module on specific pin or it is not possible... Not sure to understand?

The display use a specific ordered bit sentence compose with 3 bits for command, x bits for data display (depend of size), and an end bit.

Is there an example somewhere to start coding?

Regards

éric

hum, i'm a bit confuse

LoopbackA.setConsole(1)

in the code... to avoid the buffer pb (or need to open the webide)
and

USB.setConsole()

in the console in the webide, if i want the log back?

regards

é.

Hello.

I use console.log for debugging purpose, when the board is unplugged but powered, the prog stop after a while because of the fullness (sorry for the word) of the buffer.
Is there a way to kill output if usb is unplugged? (I'm a lazy guy and don't want to comments all my console.logline.😱)
I suppose there is something to write in the onInit()...

Many Thanks

é.

Thanks...
it saves me a lot of time to compare with old versions.

by the way,
What is the idea behind the "Project" area?
I find it's more confuse about the place for code than a real help for storing code...
I suppose i do not use it in the good way..

regards

Hello,

well, i've read somewhere that the js code is uploaded to the board and interpreted...
Am i right?
i've "loose" my source code, is it possible to download the code loaded in the board?

thanks

é.

ok i've understood.
i just want to make sequence of actions.
in that case i play with a servo... there is "normal" sequence and a "special" sequence.
all the sequence need a different setInterval
i want to stop one and start the other.
for sure i could use a flag to stop one action and let's play the other and have 2 setInterval started at the beginning.
i'm coming from Flash™ and animation software, therefor i'm thinking as an animator not as a developper... ;)

regards
thanks for your time.

éric

Sorry @Gordon i do not understand the difference between the 2 versions..

what do you mean by callback? is it the function define in the setInterval?

I've tried reinitiate a setInterval at the end of 8 "danse"move but does not works... i've got an unknown interval error!
I'm confused

function mecatronique(myId) {
  var tirage = Math.random();
  if (tirage >0.95) {
    clearInterval(myId);
    var tm = 800;
    var compteurDanse = 0;
    var idDanse = setInterval( function(id) {
      console.log("danse");
      compteurDanse ++;
      if (compteurDanse >= 8) {clearInterval(id);var idM = setInterval(mecatronique, 500, idM);}
    }, tm, idDanse);
  } else {
    if (tirage >0.6) {
      console.log("bouge");
    }
  }
}

function onInit() {
  var idMeca = setInterval(mecatronique, 500, idMeca);
}

sorry for my ugly code

I answer that i've understood.
The id is undefined, therefor there is no id for clearInterval. So it stop all the setInterval...well.
But it does not resolve my problem to transfer an id to a function to clear it at the end.
An idea, please?

Regards

Hello,

well, i'm a bit loose with setInterval et clearInterval...
I need to repeat 3 time a function with a time of 200ms
I've tried this

id = setInterval( function(a,b,c) { console.log(a,b,c);} ,200, "foo", 25, id);

in the console it said

foo 25 undefined

i've tried to use the id and it "works" (it stop)

var idAnim;
var compteur = 0;

function anim(a,b,c) {
   compteur++;
   console.log(compteur,a,b,c);
   if (compteur >= a.length){ clearInterval(c); }
}

function onInit() {
  idAnim = setInterval( anim, 500, "foo", 0, idAnim);
}

and it stops after 3 time.

i've tried the same in a function in a setInterval and it stops all the setInterval

var idAnim;
var compteurAnim = 0;
var mot = "foo";

function texte(){
    idAnim = setInterval(function(a,y,c){
      console.log(a,y);
      compteurAnim++;
      if (compteurAnim >= a.length) { clearInterval(c);}
    }, 100, mot, 0, idAnim);
    mot+="foo";
}

function onInit() {
  setInterval( texte, 4000);
}

where i'm wrong?
is there a way to pass the id to function?
or is there a simple way to repeat a definite time a function?
i want to animate text letter by letter

regards

éric

By the way @Gordon, does the ide use a cache when compile with a new module?
When update the font, i have to rename the module at each iteration to use the updated version in the espruino board.
Is there a better/easier way to disable cache?

Regards

@Gordon Yes, but i'm not the original designer, i just modified the minus and accents... You have to ask to DennisFont designer...

Regards

http://www.ebay.fr/itm/172435137027?_trk­sid=p2057872.m2749.l2649&ssPageName=STRK­%3AMEBIDX%3AIT
from sensmart

And i discovered that the é was 1pix larger. I redesign minus with 1 pix larger.
The fontDennisAlternate

/* Copyright (c) 2015 Dennis Bemmann. See the file LICENSE for copying permission. */
/*
FontDennis8Alt.js
==============

from fontDennis8
Redesign mrbbp

Usage:

require("FontDennis8Alt").add(Graphics);­
g.setFontDennis8Alt();
g.drawString("\x90 \x91\x92\x93\x94\x95\x96\x97 Dennis8 \x9f \x8c \x8d \x89",0,0);
g.drawString("ça ¿s� \xbc\xa3 \xbd\xb5\xa6 \x82\x83\x84\x85 \xac\xad\x86",0,12);
g.drawString("\xa0 Bäh böse Ärzte in Küche\xaf",0,24);

*/
var font = atob("AAAAAPoAwADAAFhw2HDQAGSS/5JMAGCW+D­zSDAxSolIMEsAAPEKBAIFCPABIMOAwSAAQEHwQEA­ABBgAQEBAQAAIAAwwwwAB8ipKifABA/gBChoqSYg­CEkrLSjAAYKEj+CADkoqKinAA8UpKSDACAgI6wwA­BskpKSbABgkpKUeAAiAAEmABAoRAAoKCgoKABEKB­AAQIqQYAA8WqW9RDgOOMg4DgD+kpKSbAB8goKCRA­D+goJEOAD+kpKCAP6QkIAAfIKCklwA/hAQEP4A/g­AMAgIC/AD+EChEggD+AgICAP5AIED+AP7AMAz+AH­yCgoJ8AP6QkJBgAHyChoN8AP6QmJRiAGSSkpJMAI­CA/oCAAPwCAgL8AOAYBhjgAPAOMA7wAMYoECjGAM­AgHiDAAI6SosIA/4EAwDAMAwCB/wBAgEAAAQEBAQ­EBEn6SggQABCoqKh4A/iIiIhwAHCIiIhQAHCIiIv­4AHCoqKhgAEH6QkIAAGCUlJR4A/iAgIB4AvgACAQ­G+AP4ICBQiAPwCAgA+IB4gHgA+ICAgHgAcIiIiHA­A/JCQkGAAYJCQkPwA+ECAgEAASKioqJAAg/CIiAD­wCAgI+ACAYBhggADgGCAY4ACIUCBQiACEZBhggAC­ImKjIiABBugQDnAIFuEABAgMBAgAA8WqWlQjxw+H­z4cABwOHAAIGD+YCAACAz+DAgAEDh8EBAAEBB8OB­AAfERERHwAfET0JFwAfFRsVHwA/nw4EAAQOHz+AA­IAAgACAHx8fHx8AP7+AP7+AAKKUiICAAIiUooCAD­5i7mI+AAICAgICAAYGBgYGAA4ODg4OAB4eHh4eAD­4+Pj4+AH5+fn5+AP7+/v7+AP7+/v7+AAAAAAD+AP­7+AP7+/gD+/v7+AP7+/v7+ADg4fP7+AAwM8EAgAJ­4AOET+RAgAEnySggQARDgoOEQAqGg+aKgAKHyqqo­IABFKqlEAAkKSopJAA/oK6kv4AEqqqqnoAEChUKE­QAOHx8fDgAOFRsVDgA/oKmiv4AEBgcGBAAYJCQYA­AiIvoiIgBImKhIAIioqFAAIECAAH8EBAh8AGCQ/o­D+ADAwAAAAAABI+AgAOUVFRTkARChUKBAA6BYqX4­IA6BApU40AqPgGCh8ABglRAgAOlGQUDgAOFGSUDg­AOVJRUDgBOlJRUjgCOOMg4jgAOVLRUDgA+SP6Skg­B4hIWHSAA+qmoqIgA+aqoqIgA+aqpqIgA+qiqqIg­CifiIAIn6iAGK+YgBiPmIAEH5SQjwAfpCIRL4AHK­JiIhwAHCJiohwADFKSUgwATJKSUowAvEJCQrwAIh­QIFCIAPkNdYT4APIJCAjwAPAJCgjwAHEKCQhwAvA­ICArwAIBBOkCAAgf8lJBgAf5KSbAAEKqpqHgAEKi­pqngAEKmqqXgAEaqqqXoAEqioqngAEKmqqXgBMUj­xSNAAYJSckCAAcqmoqGAAcKmqqGAAcaqpqGAAcqi­qqGACifgIAIn6CAGK+QgBiPkIApEqqGgwAXpCQTo­AADJJSEgwADBJSkgwADFKSUgwATJJSkgwAnCIinA­AQEFQQEAA6TFRkuAAcAoJCHgAcAkKCHgAcQoJCHg­AcQgICXgAwCkqKPACB/xUIADCKCoo8AA==");
var widths = atob("BAIEBgYGBgIEBAYGAwUCBQYDBgYGBgYGBg­YCAwQGBAUGBgYGBgUFBgYCBgYFBgYGBgYGBgYGBg­YGBgUDBQMEBgYGBgYGBgYGBgIFBgQGBgYGBgYGBQ­YGBgYGBgQCBAYGBgQGBgYGBgYGBQUGBgYGBgYGBg­YGBgYGBgQCAwQFBgYGAgYGBgYGBgYGBgYGBgYGBQ­YFBQQGBgMEBAYGBgYGBQYGBgYGBgYGBgYGBgQEBA­QGBgYGBgYGBgYGBgYGBgYFBgYGBgYGBgYGBgYGBA­QEBAYGBgYGBgUGBgYGBgYGBQY=");

exports.add = function(graphics) {
  graphics.prototype.setFontDennis8Alt = function() {
    this.setFontCustom(font, 32, widths, 8);
  }
}

Hi @MaBe,
They come from ebay, hongkong
0,98" 128x32 i2c oled display they are in white and blue. Be aware in the description
Regards

Many Thanks @Gordon, it works great!
I use it with DennisFont (cause i'm writing in french, have to had more chars, count until 255) with a height of height (arf)
i keep line 4 to 34 and modifying as follow after

require("FontDennis8").add(Graphics);

function centre(text, y) {
  g.drawString(text, (g.getWidth() - g.stringWidth(text))/2, y);
}

function init() {
  g.clear();
  g.setFontDennis8();
  centre("en attendant",22);
  g.flip();
  doFont();
  g.clear();
  g.setColor(1);
  g.setFontDennis8();
  centre("en short",22);
  g.fillRect(10,0, g.getWidth()-20, 18);
  g.setColor(0);
  g.setFontCustom(charData, charFrom, charWidths, charHeight);
  centre("Ta m\xe8re",2);
  // affiche
  g.flip();
}

var g;
function onInit() {
  // initialise l'écran oled
  I2C1.setup({scl:B6,sda:B7});
  g = require("SSD1306").connect(I2C1, init, { height : 32 });
}

regards

éric

@gordon, it works, BUT, the DennisFont has no fixed width. there is less width for an "i" or "l" than a "e"... and there is a gap...
i've tried that

g._ds = g.drawString;
  g.drawString = function(s,x,y) {
  s=s.toString();
  for (var i=0;i<s.length;i++)
    g._ds(s[i],x+=(g.stringWidth(s[i])+2),y)­;
  };

it does not work for fine letter as i, l

any idea?
regards

I've try to compile with static width but the font doesnot seems to work, i've got an error with setDennisFont16() fonction...
works with the js with automatic width, not with the fixed width...
i'll try to ovewrite the default drawString().

thanks @Gordon, and if i follow, the "10" is the step for letter width + kerning?

The other way:
i've used the online tool to convert and check the autoWidth, i should try with a fixed width with a double pixel as kerning...

I'm newb with espruino, not with arduino, not with js...
But i'm not a coding ninja