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MSol

Member since Dec 2016 • Last active Jun 2019
  • 3 conversations
  • 26 comments

Most recent activity

  • in News
    Avatar for MSol

    Thanks a lot, Gordon!
    I will try to assemble complete functional board and test it focusing on the power consumption, and share result/problems here...

  • in News
    Avatar for MSol

    Hi Gordon,
    thanks for your comments!

    ..the multimeter was not changed, just mentioned it. In tests nr.2.x and later the InAir9b module was disconnected from all pins of PICO.

    It helps!!!

    // test 3.3b: 24uA
    digitalWrite([B15,B14,B13,B10,B1,A7,A6,A­5,A4,A3,A2,A1,A0,A10,B9,B8,A8,B7,B6,B5,B­4,B3],1);
    

    instead of

    // test 3.3: 68uA
    digitalRead([B15,B14,B13,B10,B1,A7,A6,A5­,A4,A3,A2,A1,A0,A10,B9,B8,A8,B7,B6,B5,B4­,B3]);
    

    Unfortunately:
    1) my tests results (e.g. 1.1 and 1.2) have a little differ. Probably, on the reason of battery voltage is down from test to test;
    2) there is pure test, i.e. without radio module, sensors and another loads on PICO pins. How to reach the same result in case of many PICO pins are connected?

  • in News
    Avatar for MSol

    So, my next report (try 2) for all three tests as above for three-four minutes each; using multimeter UT50B made by UNI-T:

    // test 1.2: ~61uA
    digitalRead([B15,B14,B13,B10,B1,A7,A6,A5­,A4,A3,A2,A1,A0,A10,B9,B8,A8,B7,B6,B5,B4­,B3]);
    setInterval('digitalPulse(LED1,1,10)',60­000); // actual repeat time is about 50 seconds
    setDeepSleep(1);
    
    // test 2.2: ~48uA
    digitalRead([B15,B14,B13,B10,B1,A7,A6,A5­,A4,A3,A2,A1,A0,A10,B9,B8,A8,B7,B6,B5,B4­,B3]);
    setSleepIndicator(LED1);
    setInterval(function(){
    }, 60000); // actual repeat time is about 50 seconds
    setDeepSleep(1);
    
    // test 3.2: ~59uA
    digitalRead([B15,B14,B13,B10,B1,A7,A6,A5­,A4,A3,A2,A1,A0,A10,B9,B8,A8,B7,B6,B5,B4­,B3]);
    setInterval(function() {
      digitalWrite(LED1, 1);
      setTimeout(function () {
        digitalWrite(LED1, 0);
      }, 20);
    }, 60000); // actual repeat time is about 50 seconds
    setDeepSleep(1);
    

    Wow, power consumption has drop almost 10 times! Anyway, I did not reach result mentioned above my notes.

    Any comments/suggestions are welcome!

    NB: here is open question, that is about power consumption in case of all connected circuits to PICO, like InAir9B, PIR sensor and 4 pcs DS18B20...

  • in News
    Avatar for MSol

    Thanks a lot!
    a) all measurements of the current as above were made between flashes of LED;
    b) I got your idea and will extend deepsleep time, in order to give time USB driver go rest.

  • in News
    Avatar for MSol

    Hi,
    let me renew the "Pico power consumption" issue.

    I have Espruino Pico v1.4 (fw 2v01) and tried to reach as less consumption as possible using LiPol 3.7V 1100mAh.

    My code and test results:

    // test 1.1: **~460uA**
    digitalRead([B15,B14,B13,B10,B1,A7,A6,A5­,A4,A3,A2,A1,A0,A10,B9,B8,A8,B7,B6,B5,B4­,B3]);
    setInterval('digitalPulse(LED1,1,10)',50­00); 
    setDeepSleep(1);
    
    // test 2.1: **~500uA**
    digitalRead([B15,B14,B13,B10,B1,A7,A6,A5­,A4,A3,A2,A1,A0,A10,B9,B8,A8,B7,B6,B5,B4­,B3]);
    setSleepIndicator(LED1); 
    setInterval(function() {}, 5000);
    setDeepSleep(1);
    
    // test 3.1: **~400uA**
    digitalRead([B15,B14,B13,B10,B1,A7,A6,A5­,A4,A3,A2,A1,A0,A10,B9,B8,A8,B7,B6,B5,B4­,B3]);
    setInterval(function() {
      digitalWrite(LED1, 1);
      setTimeout(function () {
        digitalWrite(LED1, 0);
      }, 20);
    }, 5000);
    setDeepSleep(1);
    

    Unfortunately, no pins are grounded.

    Could you tell me, how is grounding important for this issue? What can be suggested else to reduce consumption?

    In fact, "pin grounding" is not good for me. Because entire B3-B7, A8 are linked with InAir9b module.

  • in ESP8266
    Avatar for MSol

    (in continue)
    As former test-engineer, I see some strange behavour of ESP-12F under heavy JS-code (over 10050 bytes - this is reached maximum!).

    Issue - dead wifi.scan() after several minutes of periodic calls, i.e. this function does not return any data (blank array).

    Solution to fix it - wifi.connect('111');wifi.disconnect(). here '111' is fake AP name.

    Any thoughts will be very appreciated. Thank you!

    • 3 comments
    • 700 views
  • in ESP8266
    Avatar for MSol

    (in continue)
    I have tested several another modules, ESP-12F.
    My question above was not correct.
    It seems I have bad module. Another modules have stable number of detected AP.

  • in ESP8266
    Avatar for MSol

    Hello,

    I have ESP12F module with Espruino v1.89 and two versions of test code, around 11K and 0.1K compressed bytes accordingly.

    To test I use console of Espruino Web IDE and I am entering command:

    wifi.scan(console.log)
    

    There is strange behaviour.
    Test 1) 0.1K code size - found 5 pcs AP always.
    Test 2) 10K code size - found just one AP.

    - It seems, the number of detected AP depends on the size of JS code. Can it be the true?

  • in General
    Avatar for MSol

    Hi,
    is this about ESP8266 modules like ESP-12F? Hope sample below will help to you:

    var wifi=require("Wifi");
    wifi.on('connected',function(details){ ... });
    wifi.on('disconnected',function(details)­{ ... });
    wifi.on('associated',function(details){ ... });
    wifi.on('sta_joined',function(details){ ... });
    wifi.on('sta_left',function(details){ ... });
    wifi.on('auth_change',function(details){­ ... });
    wifi.on('dhcp_timeout',function(){ ... });
    
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