DS18B20 module hang up ESP8266 ESP-12F?

[espruino-discuss]

Posted at 2017-01-09 by MSol

Hello,

my DS18B20 test does reboot device after 36 times of data reading (Espruino v1.89). Test code:

var ow = new OneWire(D14);
var sensor = require("DS18B20").connect(ow);
var cnt=1;

function getTC() {
  sensor.getTemp(function (temp) {
    console.log("Temp is "+temp+"°C : ",cnt++); 
  });
  setTimeout( function() { getTC(); }, 1000 );
}

if(sensor.isPresent())
  getTC();
else
  console.log('no sensor detected');

Console output:

...
Temp is 23.25°C :  34
Temp is 23.25°C :  35
Temp is 23.25°C :  36
>
 ets Jan  8 2013,rst cause:2, boot mode:(3,4)
load 0x40100000, len 2408, room 16
tail 8
chksum 0xe5
load 0x3ffe8000, len 776, room 0
tail 8
chksum 0x84
load 0x3ffe8310, len 632, room 0
tail 8
chksum 0xd8
csum 0xd8
2nd boot version : 1.6
  SPI Speed      : 80MHz
  SPI Mode       : QIO
  SPI Flash Size & Map: 32Mbit(512KB+512KB)
jump to run user1 @ 1000
�
Disconnected

The call of sensor.getTemp() without callback a little extends the live time.

• might I lost something?
• could you suggest me, how to fix this?

Thank you in the advance!

[espruino-discuss]

Posted at 2017-01-09 by countxerox

The function getTC() is called inside its own definition, maybe that's why, you could try..

var ow = new OneWire(D14);
var sensor = require("DS18B20").connect(ow);
var cnt=1;
 
function getTC() {
sensor.getTemp(function (temp) {
console.log("Temp is "+temp+"°C : ",cnt++);
});
}
 
setInterval( function() {
if(sensor.isPresent())
getTC();
else
console.log('no sensor detected');
}, 1000 );

Does that work?

---

Posted at 2017-01-09 by Ollie

Which espruino version? Your code runs indefinitely for me using 1.87 and a dev board based on the same chip (either E or F).

How are you powering your 12F?

---

Posted at 2017-01-09 by MSol

Thanks for your reply!

Unfortunately, it does not work also.

I have Espruino v1.89. My ESP-12F is powered by external DC +5V 600mA power supplier over DC/DC converter 5V-to-3.3V (see file attached).

---

Posted at 2017-01-09 by MSol

Here is file with schematics.
Note, there is no relay in present.

---

Attachments:

• esp12f-test-sch.png

---

Posted at 2017-01-09 by Ollie

Maybe flash 1.87 to rule a bug rule out. My board is a D1 Mini. Running your exact code I'm into the 1000's on the counter, so your code is ok I'd suggest.

---

Posted at 2017-01-09 by MSol

One moment. Let me update firmware...

---

Posted at 2017-01-09 by MSol

I have upload 1.87 from http://www.espruino.com/files/ according to "README_flash.txt" and got new problem - firmware does not work.

After flash v1.87 firmware, WEB IDE displays correct version:

>process.version
="1v87"
>

After flashing of simple test code:

console.log('HELLO');

device reboot and hang up again:

_____                 _
|   __|___ ___ ___ _ _|_|___ ___
|   __|_ -| . |  _| | | |   | . |
|_____|___|  _|_| |___|_|_|_|___|
          |_| http://espruino.com
 1v87 Copyright 2016 G.Williams
Espruino is Open Source. Our work is supported
only by sales of official boards and donations:
http://espruino.com/Donate
Flash map 4MB:512/512, manuf 0xe0 chip 0x4016
>Erasing Flash.....
Writing...
Compressed Loading 44 bytes from flash...
 ets Jan  8 2013,rst cause:2, boot mode:(3,4)
load 0x40100000, len 1396, room 16
tail 4
chksum 0x89
load 0x3ffe8000, len 776, room 4
tail 4
chksum 0xe8
load 0x3ffe8308, len 540, room 4
tail 8
chksum 0xc0
csum 0xc0
2nd boot version : 1.4(b1)
  SPI Speed      : 80MHz
  SPI Mode       : QIO
  SPI Flash Size & Map: 32Mbit(512KB+512KB)
jump to run user1 @ 1000
don't use rtc mem data
Disconnected
ERROR: Prompt not detected - upload failed. Trying to recover...

• what might be wrong? Please advise. Thank you again.

Notes: My previous version Espruino v1.89 works fine with above simple test; Now I am using 5V 5A external power supplier; I have tested three devices including "NodeMCU board" - WEB IDE console displays ERROR as above.

---

Posted at 2017-01-09 by Ollie

I don't know. I'd be inclined to suggest power - oftentimes ESP8266 weird resets seem to be power related. I can't make out the circuit diagram that well but you have a capacitor in there? What size? I think recommended min is 47uf. Does that say 0.1uf?

---

Posted at 2017-01-09 by Ollie

It's not your code anyway. Just turned it off.

Temp is 23.125°C :  9635
Temp is 23.125°C :  9636
Temp is 23.125°C :  9637
Temp is 23.125°C :  9638
Temp is 23.125°C :  9639
Temp is 23.125°C :  9640
Temp is 23.125°C :  9641
Temp is 23.125°C :  9642
Temp is 23.125°C :  9643
Temp is 23.125°C :  9644
Temp is 23.0625°C :  9645
Temp is 23.125°C :  9646
>reset()

---

Posted at 2017-01-09 by MSol

My PCB has two 47uF 16V Tantalum capacitors around DC/DC. I guess, I have found wrong firmware ZIP file, because NodeMCU even board does not work with v1.87.

---

Posted at 2017-01-09 by MSol

Ollie, could you give me proper link on v1.87 firmware file?

---

Posted at 2017-01-09 by Ollie

Look in espruino.com/binaries that where I go.

---

Posted at 2017-01-09 by MSol

Thanks to everybody!

Short report:

1. "The function getTC() is called inside its own definition" - it works fine, no memory leak:

function getTC() {
    sensor.getTemp(function (temp) {
        console.log("Temp is "+temp+"°C : ",cnt++);
    });
    setTimeout(function(){getTC();},1000);
}
getTC();

2. Espruino v1.88 and v1.89 work fine with above code for long time. Unfortunatly, after the same testing I cannot approve v.87 and v1.90.

My test environment consists:

• ESPRUINO WEB IDE;
• Two kinds of PCB boards, NodeMCU and proprietary one (as shown above);
• power supply with 5V (max 5A) output for proprietary PCB.

Feel free to contact me if any question.

---

Posted at 2017-01-09 by Ollie

How long? I thought you had a count of 36?

Did you find the 1.87 binaries in that URI? Sorry poor formatting - mobile as left work

---

Posted at 2017-01-10 by MSol

Correct, 36 times with callback function and about 60 otherwise.

Yes, I have found 1.87 binary. Unfortunately, it has another problem related to "Send to Espruino" function in WEB IDE (see post #8 above) , i.e. periodic self-reboot.