Interface and connectivity ICs

Ask questions and find answers on connectivity ICs, focusing on protocols and I2C challenges on STM32 Nucleo boards and BlueNRG products.

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SPWF04S MQTTCONN Request Failed

Hi together,I'm using the NUCLEO-F401RE and NUCLEO-IDW04A1 trying to connect and publish to a MQTT Broker. Therefore i've edited the example HTTP_Request. Connecting to my WiFi-AP is working fine, but connecting to the Broker does not work. This is w...

FSchm.1 by Associate
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This question refers to the STUSB4500 reference schematic on page 26 (fig 10) of the datasheet. Will this design prevent current flowing from a secondary power source on Vsnk back to the USB connector if the secondary source's voltage is slightly higher?

In the case where USB power is first applied and a 20V contract established, the STUSB4500 would enable the power path to Vsnk as per usual. Then assume a 20.9V (for example) secondary power source is applied to the Vsnk output (say from a wall adapt...

ON/OFF external TCXO in sniff mode

Hello,I'm working on extrem low power radio with S2-LP transceiver. To obtain a very low consumption in rx mode i puted it in sniff mode. My design has external TCXO reference and when i left it always on all work fine, but if i set gpio to switch of...

EMont.1 by Associate II
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Clarification of GATT Write Procedures

I'm a bit confused regarding some nuances of the BlueNRG-2's BLE characteristic value write procedures' functions & events. Below is my understanding with a few questions.Bluetooth Core Specification v5.2 | Vol 3, Part G; 4 GATT Feature Requirements ...

mdmottola by Associate II
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