Interface and connectivity ICs

How to read the state of an output pin?

I'm using STM32L053 to send an SPI data to other compenet. i don't know if the data has been send or not. I don't have an oscilloscope to see the signal.what should i do to know if the data is sent correctly or not?

ST4SIM-110M hi! can i put ST4SIM-110M into androd phone ? and how can I communicate with eSim?

About ST4SIM-200M, how do we know the IMEI of the ST4SIM-200M components we purchased?

I would like to use TESEO-VIC3D as a replacement receiver in our monitoring products. Ideally this would have exactly the same footprint. What inputs can be left O/C? We use the UART (pins 20 & 21) and 1 PPS (pin 3).

I have received a response on this which mentions pins 1, 6 & 15 as O/C. What about nReset (pin 8) and AntOff (pin 14)?

Serial communication not working on STEVAL-IDB008V1M demo applications

I have an STEVAL-IDB008V1M connected to my Windows 10 PC by USB. I have installed the BlueNRG-2 navigator v.3.2.2. After flashing "Hello, World," a terminal sometimes pops up, and other times I must open one myself. Either way, no text is being print...

The Spirit1 data sheet doesn't have a clear description of how to set the PA_POWER[X] registers for a desired power output level. I would like to set the PA for a 0dBm output - is there a table that relates the register setting to output power level?

I am using the SPSGRF-915 module. Other details: 902-928MHz band, GFSK modulation, 250kBaud, channel filter BW 564kHz, channel spacing 334.2kHz

X-Nucleo-IDB05A1 boards problem

I have a few X-Nucleo-IDB05A1 boards, and when I test them on the X-Cube64 board, some work and some don't. So I checked it, and like the attached picture file, the Trace Code and Bulk ID are different.Trace code XN915011 is fine,11540270 doesn't wor...