WiFi Drivers for CC3000 and BCM43362 - Cannot get working.

I have tried to perform a WiFi Scan example on the following boards with corresponding wifi modules using latest libraries and releases:

Arduino Due - CC3000
Cannot get it to work with Zerynth Studio and Adafruit Breakout Board.
Works OK when programmed using PlatformIO IDE and Arduino IDE.

Particle Photon - inbuilt BCM43362

Cannot get it to work with Zerynth Studio.
When I revert to Particle firmware and upload Particle Tinker, works OK to Android App.

STM Nucleo F401RE - CC3000
Cannot get it to work with Zerynth Studio and Adafruit Breakout Board.

All hardware runs simple Hello Zerynth examples so it would appear that serial communications are OK.

In all cases I'm running the IDEs under Windows 10.

From the above testing it would appear that:
1. The hardware is working fine.
2. The Zerynth libraries are not working fine.
3. Other IDEs get it right.

Is this a known issue?
When is it likely to be resolved?

Being able to connect to the WiFi is a fundamental requirement for IOT applications and would therefore appear to be a primary area for prompt fixing.

I'm about ready to give up on Zerynth and start using PlatformIo which appears to give me the flexibility to program a variety of hardware, although (as yet) not the advantages of Python coding.

I hope you can find time to give me a prompt and positive response.



  • hi @kenr ;
    the photon works fine on my machine with Win 10 (see image below just captured).
    Do you have the Zerynth libraries updated to the last versions?
    You can check it via Zerynth Package Manager. click the circle icon on top right corner of the ZPM column for updating the packages DB. You will se an orange icon on the top bar of the ZPM if some package is out of date.

    The CC3000 is a known issue we are working on it.
    @Giacomo should have a driver update almost ready to be released. we'll keep you posted.
    We are very sorry for this issue
    Daniele Mazzei
    Zerynth Chief System Architect
  • kenrkenr Member
    I have just installed the v2 Studio.
    I still cannot get the WiFi Scan example to work on either a Arduino Due + Adafruit CC3300 or a Photon with the BCM Driver.
    Is this still an issue to be resolved shortly or is it me?
  • kenrkenr Member
    Previous post should have read " ... CC3000 ..."
  • kenrkenr Member
    Now over a month since I posted this without any response. Not that any of my posts get a quick response.

    I have had issues regarding WiFi on various devices since joining via Kickstarter many months ago.

    Any chance of an answer to this point?

    There appears to be a lack of resources or intent at Zerynth to resolve issues quickly.

    If Zerynth is to become a significant player in the IOT space it will have to speed up development and rectification of issues otherwise it will miss the opportunity.

  • Hi Kenr,

    Unfortunately, the cc3000 wifi chip, as described in the official texas instruments wiki (link), is a discontinued product and Texas Instruments itself recommends CC3200 & CC3100 chip (not supported yet in Zerynth) for all new and existing embedded Wi-Fi & Internet of Things applications.

    In our internal tests the cc3000 chip works most of the time but we detect from time to time problems regarding signal level, scanned nets, and lost connections.

    Instead the BCM43362 chip mounted on the Particle Photon works well in all of our tests and we don't detect any problems; we load the wi-fi scan example on 2 different Particle Photon uncommenting the "import library" row (from broadcom.bcm43362 import bcm43362 as wifi_driver) and everything works.
    If you don't see anything in the serial console you should put a sleep instruction before the start of the scan because the Particle Photon is very quick and maybe it has already printed the informations when you open the serial.

    Another advice is that if you call other library function (like set_antenna(), etc.) you must put them in the script after the auto_init() function.

    Here a script that should resolve the problem:

    import streams
    import socket
    # import the wifi interface
    from wireless import wifi
    # uncomment the following line to use the BCM43362 driver (Particle Photon)
    from broadcom.bcm43362 import bcm43362 as wifi_driver
    # init the wifi driver
    # a list of security strings
    print("Scanning for 15 seconds...")
        # start scanning for 15000 milliseconds
        res = wifi.scan(15000)
        # if everything goes well, res is a sequence of tuples
        # each tuple contains:
        # -ssid: the name of the network
        # -sec: the security type of the network, from 0 to 3
        # -rssi: the strength of the signal, from 0 to 127
        # -bssid: the mac address of the access point
        for ssid,sec,rssi,bssid in res:
            print(ssid,"::",wifi_sec[sec],":: strength ",rssi*100/127)
    except Exception as e:

    I hope that this can help you.
    Let me know
    Matteo Cipriani
    Zerynth Support Team
  • kenrkenr Member
    Thanks for your fast response.

    Have tested your code with the Photon and NodeMcu v2 and both work fine.
    The sensitivity of the Photon is much less than I normally get with Particle firmware.

    Moving on now to the HTTP Time example to see if I can get either device to connect to my WiFi network.

    Still cannot get result with the Due+CC3000. Does  Giacomo's previous comment still apply or has the driver been updated yet?

  • kenrkenr Member
    Further to my last post .......
    The site "/" appears to no longer exist, therefore the example fails.

    I have tried testing with the HTTP Weather example which appears to work fine, proving connectivity.

    It is a pity that Zerynth examples which do not work have not been either fixed or removed.

    It is also a pity that the examples have not been updated to reflect the growing number of platforms Zerynth works on. For example the ZerynthApp Basic example does not include many WiFi drivers.

    If new users are to grasp the value of Zerynth quickly, good working examples give a great start-up experience.


  • hi @kenr ;
    thanks for your very helpful feedback and suggestions.
    We are working hard day by day to improve the Zerynth usability and user experience but keeping track of all the changes happening on the web is a big challenge... this is why we have a community :smiley: 
    Thanks again for your support! 
    Daniele Mazzei
    Zerynth Chief System Architect
  • kenrkenr Member
    Have installed latest update, r2.0.5, and still cannot get the CC3000 to work using the WiFiScan example and Arduino Due.

    The Arduino Due plus CC3000 work fine using Arduino code.

    Can you confirm ....

    1. the CC3000 drivers should work with r2.0.5 and the Due?
    2. if not when is it anticipated that this will be resolved?
    3. or is it the example code?

    For information, the Due Programming Port seems to be unavailable for uploading after the WiFiScan has been run until I reconnect the Due.
Sign In or Register to comment.

ZERYNTH Community

@ 2016, all rights reserved.