Interface and connectivity ICs

Posted on September 20, 2017 at 09:46Hello,I want to receive and transmit NFC Text Message using NUCLEO-F401RE board with X-NUCLEO-NFC02A1.I downloaded the X-CUBE-NFC2 librairy (with STM32F4xx-Nucleo-WriteURI example). This example seems to send an URI NFC message.1) which function of the librairy should I use to wait for text message reception ? 2) where can i get an example of getting a text message ?Thanks for any responseBest regards

Posted on September 18, 2017 at 11:27Hi,I am very new to STM32 and SPI interface. For my project I need to connect with Android apps using bluetooth from STM32. I have a STM32L476RG and X-NUCLEO-IDB05A1. I search and found a SensorDemo project. Where they used SPI1 for the BNRG_SPI_Init() function./***************************/// SPI Instance&sharpdefine BNRG_SPI_INSTANCE SPI1&sharpdefine BNRG_SPI_CLK_ENABLE() __SPI1_CLK_ENABLE()/****************************/For my real project board, I have to connect it with SPI3 interface. I am using cubeMX for the starup generation. But I dont know how the sensorDemo project configured for SPI1.Can anyone please inform me how to convert quick and efficiently for bluetooth connection from SPI1 to SPI3.Or inshort can anyone suggest me what changes I need to SPI1 with SPI3 for the SensorDemo project?Thanks in advance. 

Posted on September 19, 2017 at 05:44Hey!I am currently having fun with Sensortile.I'd like to know is there any current consumption profile?(STLCR01V1 already put it into the little box)I only know that while is connected through the app, battery profile tells that it's discharding with about 15mA.If I turned off the usb debug function, it draws about 10mA.I would like to know:1 Can I further reduce the current consumption with all sensors on?2 In advertising, how much current it take? Can I further reduce it?   If so, how? Where is the code that I can change the cycle of advertising?Thanks for reading this post!Zt.#stm32l476 #mems #sensortile #bluenrg

Posted on September 17, 2017 at 16:17Hello,   Is there a current and complete documentation on how to use and program the SensorTile, preferable without needing to purchase a Nucleo board? If there is one, where can I find it? Also, if it is absolutely necessary to have a Nucleo board, which one would be the right one to purchase?   I noticed that all manuals and 'getting-started' guides point to buying a ST Nucleo board (which is not included in the SensorTile development kit STEVAL-STLKT01V1) in order to do any programming. This is a little upsetting since I purchased this 'complete' development kit to develop, not to purchase more material. Even so, I am having trouble finding up-to-date or relevant information on how to program and use this device. All manuals I've found so far have only talked about the cool features that this device has, and how to connect the SensorTile to a Nucleo board to program it. These manuals never showed API or documentatio

Posted on September 14, 2017 at 23:18Hello,I'm working with an SPWF04SA. I set up the Wi-Fi connection correctly, it responds well to ping, but I can not send an email.I have tried several things, and I only get a certificate 5 error (the common name does not match)at + s.smtp = (hostmane), 587,5, (user), (password), SPWF04SA, (email), (to) ,,, proba ,, 5{text1}or certificate error 23 (CA could not be found)at + s.smtp = smtp.gmail.com, 587,5, (email), (password), SPWF04SA, (email), (to) ,,, proba ,, 5 {text2}What am I doing wrong?Can anyone show a complete plot?

Posted on September 15, 2017 at 16:50Hi,I am using the SPWF04 and want to update the filesystem via UART.Is it possible?For the SPWF01 there is the command AT+S.HTTPDFSWRITE but thats not working with the SPWF04.I've read in another post that it might be possible with FLASHER/ST-LINK (wired UART/SWD) but I can't find any further informations.Thanks for your help!

Posted on September 01, 2017 at 11:39Hey Folks, i'm currently starting with developing applications for the SensorTile. I try to achieve so advertise a custom BLE Packet (like an AltBeacon Protocol). I found the hci_le.c header in de Middleware. It seams that i can use the 'hci_set_set_advertising_parameters' and 'hci_le_set_advertising_data' functions for modifieng the ADV Packet.But there is no documentation what the function parameters mean! Is there any documentation ore experience available?? Thanks Jan B.#sensortile #bluenrg

Posted on July 21, 2015 at 11:00Hello, i'm using aBlueNRG-MS module.I have a problem with this module. I can use it as Master and Slave, but i can't use it as Master&Slave simultaneously. Because after i create a connection with a slave module i can't make the Master discoverable.what can i do? is there an example of using the BlueNRG as Master&Slave simultaneously ?Thanks!Stefano #bluenrg-master&slave

Posted on September 11, 2017 at 09:03I'm using STM32 WiFi Cube Extension 3.02 and I see that calling wifi_init restore my module to factory default.I want the latest AP setup to be saved between module power cycles, if one was set, and by calling wifi init I remove this setup every time the module is started.I can of course comment it out but I was wondering why it is there from the first place, maybe I'm doing something wrong?Thanks,Eyal #spwf01

Posted on September 12, 2017 at 14:48Hello,I am trying to do a test with the bluenrg-1, I have connected 2 led's to different inputs, I am blinking those leds every second and they are working fine but when I try to use the aci_hal_tone_start( 0 ), the led's stop working and it does not seem to be advertising anything on that channel.Anyone have any idea what the problem could be. Could be any config problem, any example?Thanks 

Posted on September 08, 2017 at 19:25Hello, I need the FIT data and test conditions for ST3485ECDR.

Posted on September 07, 2017 at 16:37My device works as peripheral in stack mode 2. This means it can handle connection from one central device only. I need to handle at least two central/master devices simultaneously. How can I do that? I suppose I need stack mode 3 or 4. What is the difference between them? There is nothing about this in PM0237. UM2058 says there can be 8 connections in Mode 3 and 4 connections in Mode 4, but there are no details whether it applies to central or peripheral role. I don't need central, I don't need scan. Just peripheral and advertising. I have found some slides which say there can be only 1 master connected in Mode 3 and two masters in Mode 4. Is that true? Does it mean that it's not possible to access BlueNRG-MS in peripheral role from e.g. phone, tablet, and computer at the same time? Where can I find official information about this?#bluenrg-ms #stack-mode

Posted on September 07, 2017 at 21:08I want my SPWF01 to automatically reconnect to the last AP it was connected to, how can I set it to this mode?

Posted on September 07, 2017 at 17:37Hi, I'm trying to design a PCB with the M95640-DRMF3TG (AKA M95128-A125) Serial EEPROM, and cannot find a land pattern for the part.  The best thing I can find is TN1171 (Technical Note), but it does not give any dimension information on the part.  I'm getting frustrated with the lack of information.  The Technical note is dated 2014, so the part has been out for a while, and I was hoping that there would be better documentation at this point.  This may be an ST exclusive package, which worries me about second sourcing ability.http://www.st.com/content/ccc/resource/technical/document/technical_note/6f/d0/b9/86/d1/62/45/18/DM00111135.pdf/files/DM00111135.pdf/jcr:content/translations/en.DM00111135.pdf 

Posted on September 06, 2017 at 21:49Hi All,I am wondering why the newly launched ST BlueNRG-2 only has an RX sensitivity of -88 dBm and not something closer to the competitor products like the Nordic nRF52 (-95 dBm)? Even the old nRF51 has an RXsens of -93 dBm!#bluenrg #bluenrg-2

Posted on September 01, 2017 at 19:11smd TSSOP 8 chip z346 or z34b lost datasheet can anyone identify

Posted on June 29, 2017 at 10:05Hi I am using a SPWF04, and I am connecting it to PC using STM32 Nucleo as USB2UART bridge ( This is running WiFi VCOM , STM32L476RG-Nucleo project.bin )I am working on a project where I want to have a webpage on the SPWF04 (similar to the example applications). The SPWF04 will be in Wi-Fi AP mode, and allow connection from mobile devices.  The mobile device will hit the webpage - which in turn will cause SSI calls to the SPWF04 module.   I will then have micropython code on the SPWF04 that will receive the SSI call (through +WIND notifications) and will return the relevant data for the SSI field.The micropython will also have an open connection to UART/USB to a PC - and will send/receive messages on that port.I am currently experiencing some issues that I hope you can help with:1)  Please could you confirm that for development purposes, I am using the STM32 Nucleo as USB2UART bridge in the correct way i.e. using WiFi

Posted on August 31, 2017 at 00:25I just did an AT+S.FSUPDATE and it fetches the webserver data correctly, but at the end of the chunk writing process it complains that it is Unable to mount volume. Any suggestions ?AT+S.FSUPDATE=e,192.168.1.119,/outfile.img,80,0,none,none

Posted on September 01, 2017 at 12:24I have some trouble with getting disassociated because I reload one of my pages very often to get the newest SSI information on the webpage from the microcontroller. I get the message: '+WIND:72:Station Disassociated: ... :1'.I am using the SPWF04 in MiniAP mode and with firmware 1.0.0For testing I am using a html page with:<body onload='window.location.reload(false)'>In the user manual I found the variable wifi_txfail_thresh which is for the maximum number of lost packets before disassociation. When I set it to a higher number I don't get disassociated so fast. When I set it to 0 or 1 I get disassociated very fast.With the standard value 5 it takes between 1 and 15 minutes after a reset until disassociation.My question is: Is it possible to disable the disassociation function? I don't want to be disassociated no matter how many packets are lost...Thanks and regardsMareike

Posted on August 31, 2017 at 15:54I'm writing software which sends ASCII messages that are interpenetrated by a machine via UART from my web application. The application is on the chip fine, it sends the ASCII I write via output.cgi, and I snoop on the RX and TX with realterm so I can see the strings being sent and the CGI file is the only thing interacting with my ASCII before it goes on the wire. So when I send 'RESPOND?' I can see the string RESPOND but the question mark is converted to html encoding and what is printed is 'RESPOND%3F' so my machine can not interpret this. Has anyone had this issue or does anyone have any solutions? I have NO idea why its happening and I believe I am unable to write my own custom CGI files for the chip.Thanks#%3f #html-encoding #ascii #spwf01sa #error #output.cgi

Posted on August 31, 2017 at 12:55I have a couple of weeks trying to make a TLS connection and it has been practically impossible. I am using the SDK for SPWF04A (STM32CubeExpansion_WIFI1_V3.0.2) on a NUCLEO-F401RE, and compiling the code into IAR. I followed all the steps explained in document AN4963 and UM2114. I have tried to obtain the root certificates (CA) of the sites that I have decided to test, and the respective Subject Key Identifier of each certificate. I have placed CA certificates in the code as text string in PEM format and exported from Google Chrome, and I proceeded to do the tests in two modalities, either using sockets, or using the http client.The issue is that if I establish a socket or http connection to port 80 and without using encryption in the selected test sites (Googleapis, Restipsum, etc) the connection is satisfactory and I get the expected data. On the other hand, if I try to establish the connection in TLS using port 443 for each of these sites, and usi

Posted on May 19, 2017 at 13:04The Generic Attribute service (0x1801) has Service Changed characteristic (0x2A05). They are added automatically by Aci_Gatt_Init. Does BlueNRG-MS stack send indications with this characteristc when services and characteristics are being added or removed? Or I need to send indications manually? Central devices, e.g. mobiles phones, cache services and they need to be notified by Service Changed characteristic so they can rescan peripheral device and update their cache.#cache #bluenrg-ms

Posted on August 28, 2017 at 10:17Hello sir,we are manufacturing automotive product.we would like to verify our PCB layout for L7805ACV.please go through it and revert if any suggestion on layout.here we attached layout as well as ckt document regards,Ravindra.

Posted on August 17, 2017 at 08:24Hi,I am using Nucleo l053r8 development board with x-nucleo-idb05a1 extension board which has SPBTLE-RF bluetooth low energy module. I am want to make application that can scan for ble devices and reads its advertising data. I can find examples for device as peripheral mode but can't find any example about scanning. Can anyone give me some pointers where to look for example code for scanning modes or where should i start to learn more about it?Thanks

Posted on August 21, 2017 at 15:49Hi, I have a question about the firmware version of the spwf01S modules.AT+S.STS=version♯  version = 150410-c2e37a3-SPWF01SWhen I read the version, this appears. This is the version is 3.4. Is there a way to get 3.4 from the version string.The first 6 letters are something like the compile or release date, but for what are the others.It's a bit strange, that the firmware version is always declared with 3.3, 3.4, 3.5, but this versioning is not used on the device itself.So is there any connection with Version 3.4 and 150410-c2e37a3-SPWF01S or not?Best regardsSimon#version #spwf01s