Interface and connectivity ICs

How to design the SMPSFILT associated with the SMPS built into the BlueNRG-2 module?

Hello there!I am struggling to find any significant information about the SMPS built into the BlueNRG-2. It would be really great if some more details are made available regarding the internal hardware and the external auxiliaries and supporting circ...

Sending At Commands to SPBT3.0DP2 via mbed

I am trying to use mbed to send AT Commands to the SPBT3.0DP2 module in order to change it's baud rate. I am using the ATCmdParser to send the AT commands. It seems like I am not able to enter the command mode? I'm not sure. please help.I do at.send(...

Error message "Could not initialize BlueNRG Mesh library!", error code = 2 when using pre-built bin file for NUCLEO-L476RG with X-NUCLEO-IDB05A1

I also built firmware from provided sources and libraries using WorkBench but the problem persisted. One thing was different, bin file was less than half the size of the pre-built one. I added some code to display returned error code (2) and also dis...

ST7580 transmitter/receiver circuit question

In the ST7580 application note (AN4068) the transmitter and receiver paths are connected through a DC blocking capacitor after the output of the power amplifier. Therefore when no transmission is occurring the output of the PA should be similar to a ...

Why discovery end event is missing from BlueNRG-2?

Hi,I use my device for continuous scanning. The scanning is started by calling:aci_gap_start_general_discovery_proc( 2000 /*LE_Scan_Interval = 1.25 s */, 1800 /*LE_Scan_Window = 1.125 s */, 0x00 /*=use public dev ad...

S2-LP transceiver

I want to develop 6LOWPAN over S2-LPThis mesh network have other devices that support 6LOWPAN, different to ST microelectronic manufacturer. Could I tune S2-LP in frequency, band, modulation, etc in order to can speak/listen with other devices?Best r...

Hi, I use the SPWF04 and i want know: Is it possible to open automatically a web page on a smartphone when it is connected at the Access Point? Best regards Patrick

Does the S2-LP support unadvertized frequencies below 100 MHz?

Our application requires that the RF frequency range of the system starts around 1 MHz and can go up to a few hundred MHz. I see that the lowest the S2-LP will go in frequency is about 400 MHz. Is there a way to use this device to transmit and receiv...

S2-LP CSMA/CA - Guidelines for clear channel assessment period T_CCA and T_Listen

Are there any design guidelines or rule of thumbs for the clear channel assessment period T_CCA and T_Listen? Which considerations should be taken into account for T_CCA and T_Listen? According to my knowledge, T_CCA should at least be greater than ...