Search results for:

OK
update the firmware to 2.05
now how to continue?

Thanks,

Hello ,
I have try and try but your support and documentation is not so understandble for first use....

I'm using MDBT42Q version 2.04 (because I can't update using windows computer).
this is what I want to do :
publish my device using BLE , so whenever people will scan they will se my device
simple as this
I want people will be able to see:

1. name of the devcie
   
2. battery
   
3. temp
   
   

this is what I want to upload to the MDBT42Q (after reading 10 times on the support part)

NRF.setAdvertising([
   require("ble_eddystone").get("http://www­.david.com"),
  {
   name  : "David",
   showName: true,
   discoverable : true,
   connectable : false,
   scannable : true,
   manufacturer: 0x0590 ,
   0x180F :  NRF.getBattery(),
   0x1809 : [Math.round(E.getTemperature())]
  } 
], {interval:100});

but it doesn;t work
I get error

Uncaught Error: BLE error 0xc (DATA_SIZE)
at line 13 col 20
], {interval : 100});

               ^

why?
this is as the example you post

so when I upload this it is working :

NRF.setAdvertising([
   require("ble_eddystone").get("http://www­.Mako.co.il"),
  {
   name  : "David",
 //  showName: true ,
 //  discoverable : true,
   connectable : false,
 //  scannable : true,
  // manufacturer: "0x0590" ,
   0x180F :  NRF.getBattery(),
   0x1809 : [Math.round(E.getTemperature())]
  }
], {interval : 100});

why?

maybe I'm missing something so this are my questions about the code above:

1. did I miss something ? just publish this information - this is whatI want to do.
   
2. what is the different between
   discoverable \scannable - isn't all the same?
   if I disable showname - I will see every data except the devcie name - right?
   
3. maybe I'm using the wrong app on my phone ?
   when I just search using bluethhoth scan - I don't see the device at all.
   when I search using "BLE Scanner" - I see the device (without any information ) but when I press "Open url" - it redirect my to my site . but no name\temp - nothing.
   when I use "nRF Connect" - I don't the name of the device just "Te" and the battery 3% temp 85
   
   

so what is wrong?

Thank you for your help!

yes I do
tablet with android 7 - will this works?

I have also have a computer with win10 - better?

Using WIndows7
don't have MAC or android device here

sorry, the firmware update has failed.

The error was: TypeError: Failed to execute 'requestDevice' on
'Bluetooth': required member filters is undefined.

Please try again, or check out the Troubleshooting page for what to do
next.

I download the zip file - espruino_2v05_mdbt42q.zip
in the IDE selected
FLASHER
Advanced Firmware Update
selected the file
did what the message said
now the device red led is on
but I still get the error
what is wrong?

I need to be neat the device fot this - I see
I will do it latter and let you know
thank you Gordon !

VERSION: "2v04", GIT_COMMIT: "3956264e", BOARD: "MDBT42Q",
FLASH: 524288, RAM: 65536, SERIAL: "3700071-fa641234", CONSOLE:
"Serial1", MODULES: "Flash,Storage,hea" ... "S,crypto,neopixel",
EXPTR: 536882364 }

var res=process.memory();
 console.log("Memory free - " + res.free);
 if(res.free<2000)
 {
   LED1.write(true);
   console.log(ScanResault);
   require("Storage").write("Test",JSON.str­ingify(ScanResault));
   console.log("write");
   GetData = JSON.parse(require("Storage").read("Test­"));
   console.log("JSON.parse");
   ScanResault.length=0;
   console.log("Clear Array finsih");
   console.log(ScanResault.length);
  }

when I run the code
I get error that

Uncaught Error: Unable to find or create file
 at line 35 col 63
...JSON.stringify(ScanResault));
                              ^
in function called from system
> 

but when I run list I can see the file

console.log(require("Storage").list());
[
  "Test",
  ".varimg"
 ]
=undefined

maybe this is my problem?

and how could it be ?

doesn't get rid of the file

just to be sure - wher do I see the version?

Hello ,
as I understadn I can use about 40kb~ of memory in the MDBT42
I have code that save into RAM and then move it to the flash

require("Storage").write("test",JSON.str­ingify(ScanResault));
   GetData = JSON.parse(require("Storage").read("test­"));
   ScanResault.length=0;
   console.log("Clear Array finsih");
   console.log(    ScanResault.length);        

I can see the RAM is clear without a problem
then I send this information to another devcie and after a while I want to clear the flahs
but I'm unable to do this
this is the command I'm using :

require("Storage").erase("test");

but it doesn't work

why?

in the manufacturer the number shown is in Decimal ,right ?
so 76 - Creative Technology Ltd.
6 - Microsoft?

I read the link - jsut want to be sure
there is no way to know what is the service been send right ?
If I look at the first device
and take look at the second group of 4 digits :"e0e1"
this is the sevice name ? and this is not a standart one ?
it could mean 'sensor value' (for example ....)?
if this I understadn it correct - where is the value of it?

also if the 4 digits were "0x2A80" that mean that the service was Age? (according to GATT) , and where was the value of this ?

Thanks ,

Hello ,
when I scan the bluetooth , I get this message:

 BluetoothDevice: {
    "id": "3c:bd:3e:2f:0f:18",
    "rssi": -90,
    "data": new Uint8Array([2, 1, 2, 17, 7, 252, 157, 208, 179, 203, 132, 224, 132, 6, 66, 243, 247, 225, 224, 191, 203]).buffer,
    "services": [
      "cbbfe0e1-f7f3-4206-84e0-84cbb3d09dfc"
     ]
   },
  BluetoothDevice: {
    "id": "c8:d0:83:e3:4b:1f public",
    "rssi": -83,
    "data": new Uint8Array([2, 1, 26, 2, 10, 12, 10, 255, 76, 0, 16, 5, 1, 16, 239, 212, 67]).buffer,
    "manufacturer": 76,
    "manufacturerData": new Uint8Array([16, 5, 1, 16, 239, 212, 67]).buffer
   },

for the first devive I see:
why there is no manufacturer number?
and how can I read the services ? what does it mean? can one expalin ?
also , what does "data" mean? how can I understadn what he sending?

for the second device:
is there a list of manufacturers? so number 76 is iphone (for example?)
also what does the manufacturerData mean? how can I understand it?

the reason I'm asking is - I have a blutooth device I want to write for him application , and I want to see how and I can read from it

Thanks ,

OK , I will try it
why it said that it's recommand to use physical pull up resistors?

and about the SD card ,

1. if I power it using the MDBT42Q (3.3V) meaning the the data ill also work on 3.3V (this is what I know - is this ture? am I correct?
   
2. if the above is true . will you still recomand to use the pullups?
   
3. I found in the SD datasheet , that the operation is 3.3V\10uA - do you know if this really the value of the Amper? can I use this to calculate the neeeded battery?
   
   

Thanks ,

1. what do you mean by "software I2C"?
   isn't the code should be 'backup" by electronic?
   
   

and what do you mean by this ?

It's still an idea for SD cards though (at least on CS)

1. I will check and run my test about the 40k ,
   
   

Thanks ,

Thanks ,

I probelly will reboot the unit and remove the battery every few days,
this is why I need the clock.
I looked at the page you link me and saw I need to use this pins:

3V3 VCC
GND GND
B6 (SCL) DIO
B7 (SDA) AIO

you rcommand to use pullup resistors , will 10K is good for this job?

also I want to connect an external storage (that way I will be sure that it save me the data even if the power is down\unplug)

and this is the pinout you suggest:

SD Card Espruino
DI/CMD B5
DO/DAT0 B4
SCLK/CLK B3
CD/CS/DAT3 B6
VDD 3.3v
VSS/GND GND

again will 10K resistors will be good here also? (when I search google ,many examples for pullup 3.3V where 10K ).

another question is can I use RTC and external storage at the same time on the same device?
because I can see that both of them are using B6
can I change one of them to use B8 (for example)?
maybe for the exteranl CS? and then just change it also at the code ?

// Wire up up MOSI, MISO, SCK and CS pins (along with 3.3v and GND)
SPI1.setup({mosi:B5, miso:B4, sck:B3});
E.connectSDCard(SPI1, B8 /*CS*/);
// see what's on the device
console.log(require("fs").readdirSync())­;

Thank you for the answers in all the posts :-) ,

---

by the way - maybe I'm working too hard and there is another solution for me ?
a bluetooth5 BLE with RTC and SD card device?

1. great , this is what I looked for .
   so for example : when I connect my "tws i7" to my phone I see the battery is 80% .
   so they are sending the 0x180F ?

2. I will do as it say in the post you sent me , and see everything is OK .

Thanks ,

Great
but after reboot the device , I'm getting 1970 .
I'm guessing it's because the device dons't have a RTC on it .
so my question is - can I connect RTC to it?
I have RTC module that I use to work with him on Arduino? can I connect it ?
and if yes - can you share a link "howto"?

Thanks ,

I read it , and now I guess it "save" me the data.
3 questions:

1. what is the limit of sapce I can use for this ?
   

2. lest say the device work for 2 hours,I got 100 entries - then the battery is unplug.
   is the data saved somewhere? or it got lost?

3. let say that I want to transfer the data to my PI ,
   how do I do this?
   what do I need to write on the PI side ,in order to read the data and then delete the device log?

Thanks ,

Hello ,
Is there any way to save data on the MDBT42Q?
I running a scan to and want to save the resault ,
can I do this?
can I save the the data as txt file \ or even Json ,
and then send it to my phone ?(when I connect to it ,and assuming I have an app then can read JSON)?

Thanks ,

let me explain myself:

1. 0x180f - where this came from ? in the link you sent there is no refernce to this
   is this something unique to espruino? or it's a known bluethooth information?

2. I want to be able to scan and advertise my device at the same time .
   so if I'm correct I need to use 2 devices , one for scanning all the time , and 1 sending my data
   is it true?
   or I can use only 1 and do some manipulation in the timing?
   I don't need that someone will connect me - just to show I'm alive .
   I have try to use this function:

   NRF.setAdvertising({},{name:"test1",conn­ectable:"false",scannable :"false",interval:1000});
   

but I;m steel able to connect to "test1" - why?

3 . I want to change my own MAC for testing issue , so I will know which MAC I'm testing,
more easy for me - this is the reason.

Hello ,
I have read the Reference for the NRF.setAdvertising , and something is missing for me.
For example

to return battery level at 95%, do:
NRF.setAdvertising({
  0x180F : [95]
});
Or you could report the current temperature:
setInterval(function() {
  NRF.setAdvertising({
    0x1809 : [Math.round(E.getTemperature())]
  });
}, 30000);

but how do I get this data ?
also where is the lines I can edit ? which options I can use\edit?

is there a list of thing I can use?

also
when I scan my device I can see that the MAC is

16:17:18:20:ac:a0 random

why is it?
what is the different between
Public,statis,random?
what do I need to use?

Thanks,

Hello,
I want to scan and save a list of my devices around me
this is what I get :

[
  BluetoothDevice: {
    "id": "16:81:e2:2a:3a:21",
    "rssi": -84,
    "data": new Uint8Array([30, 255, 6, 0, 1, 9, 32, 2, 50, 141, 254, 49, 137, 64, 152, 204, 169, 29, 27, 46, 84, 132, 252, 5, 163, 119, 196, 51, 11, 17, 122]).buffer,
    "manufacturer": 6,
    "manufacturerData": new Uint8Array([1, 9, 32, 2, 50, 141, 254, 49, 137, 64, 152, 204, 169, 29, 27, 46, 84, 132, 252, 5, 163, 119, 196, 51, 11, 17, 122]).buffer
   },
  BluetoothDevice: {
    "id": "19:28:83:ac:a2:12",
    "rssi": -88,
    "data": new Uint8Array([30, 255, 6, 0, 1, 9, 32, 2, 42, 141, 40, 247, 194, 40, 168, 87, 141, 136, 125, 152, 127, 146, 236, 253, 134, 225, 51, 85, 107, 62, 248]).buffer,
    "manufacturer": 6,
    "manufacturerData": new Uint8Array([1, 9, 32, 2, 42, 141, 40, 247, 194, 40, 168, 87, 141, 136, 125, 152, 127, 146, 236, 253, 134, 225, 51, 85, 107, 62, 248]).buffer
   },
  BluetoothDevice: {
    "id": "6f:00:ce:b4:2c:8b",
    "rssi": -90,
    "data": new Uint8Array([2, 1, 26, 2, 10, 12, 10, 255, 76, 0, 16, 5, 81, 28, 74, 203, 201]).buffer,
    "manufacturer": 76,
    "manufacturerData": new Uint8Array([16, 5, 81, 28, 74, 203, 201]).buffer
   }
 ]

so I see that I have 3 devices around me

I have sevral queesion about it :

1. why I don't see the name of the device "david-Iphone", "My-computer" ? like I see when I scan using my phone?
   

2. I have try to add time using

   getTime()
   

   but he gave me

   821.90802001953

the MDBT42Q doesn't have an internal clock? , can I add to it RTC devcie to get the time?
or maybe there is another device that already have rtc inside of it?
4.is there any way I can save the data as text\json ? and then upload it to my device ?

1. after I save the wanted devcies after scan , is there any way to know how much free space I got left on the devcie?
   
   

Thanks ,

great
I will start a new post with some question that I have about it now

Thanks!

I understand
I feel now I have more then enough to start,
Thanks for all the help !

another related question:
I have another think I want to do -run a scan once every second and get the signal and mac of the around and save it to the device. (and then decide if I want to connect to it or not , by MAC or signal)

how do I do this?

yes I'm only intresting in using Bluethoot beacon not NFS .

I don't need anyone to connect to the Bluethoot (there will be nothing to connect to...), just want to advertide using it .

I saw I can advertise URL , but I want to add myown text - not just URL .this is my big question ?

Thanks ,