Ask questions and find answers on connectivity ICs, focusing on protocols and I2C challenges on STM32 Nucleo boards and BlueNRG products.
Posted on December 02, 2017 at 01:01The reference manual reads as those pins should be 'w/o pull', however I measure the pins being pulled high during sleep on the bench.The language in the reference manual is confusing (pasted below), because all t...
Posted on November 28, 2017 at 11:47Hi I have a BlueNRG-MS peripheral device, that requires pairing for encrypted data transfer. Overall it works, but when cancelling the paring procedure from the central (IOS) then the following reconnect attempt...
Posted on November 30, 2017 at 09:37Hello everybody!Is there a possibility in SPFW04 to POST and GET via HTTP not only from RAM, but from external SD card? Another question is whe i can`t create file bigger than 15360 bytes on external SD card?
Posted on April 27, 2017 at 10:53Hi,I am working on a x-nucleo-IDB05A1 together with a nucleo-L073.I would need to advertise Eddystone/iBeacon datas and be connectable at the same time.My problem is that I can emit beacon data but when I put the dev...
Posted on June 23, 2017 at 16:24Hi guys,I'm using a spblte-rf module on a custom board.Correct me if i am wrong, but from what i understood the master module will ask the module for data every 'connection interval'. i.e if this interval is 1s, the p...
Posted on November 28, 2017 at 07:28I'm measuring ~1.7mA @ 3V in SLEEPMODE_CPU_HALT and SLEEPMODE_WAKETIMER modes.This is with all peripherals disabled except NVM and SYS_CONTROL.The datasheet indicates:Sleep mode: 32 kHz XO ON (24 KB retention RAM)...
Posted on November 21, 2017 at 11:46 Hello, I know my question is simple but the answer, I think, is not as simple. Here is my use case: I would like to exchange a small amount of data between a PC (client) and a remote device (server) quickl...
Posted on November 28, 2017 at 09:59hi,config: spwf04sx interface uart and stm32F401RB:i inform you i found a bug in n.x-cube-wifi1_firmware_v3.0.2 in wifi_module_uart_04.c in function Process_Wind_Indication case WiFi__MiniAP_Associated to get clie...
Posted on November 27, 2017 at 01:14Hi I planning to use either SPIRIT1 or S2-LP for my project on WMBus. Refering to the schematic (http://www.st.com/content/ccc/resource/technical/layouts_and_diagrams/schematic_pack/d0/6d/01/df/b4/8f/43/75/steval-...
Posted on November 19, 2017 at 15:19I'm facing a serious issue with the BlueNRG-1 chip. Its flash sometimes gets corrupt on power up. It is happening due to slow discharging of bulk electrolytic cap of 100uF. When I remove capacitor then it works fi...