About Silas Valera

Silas Valera · 2019-01-01

Hi I am considering LIS3MDL to detect the presence of car in parking space by measuring the change in magnetic field. Has anyone worked on this LIS3MDL for similar application? Would you please share your experience / comments?ThanksSilas

Silas Valera · 2018-09-13

Hi I received this P-Nucleo-LRWan1 kit and I want to first load the EndNode code, I am using the I-CUBE-LRWAN with AC6. Can I observe the RF signal on RF Spectrum Analyzer once the kit is working with the EndNode code?After the above test, I wan to ...

Silas Valera · 2018-01-06

Posted on January 07, 2018 at 03:35 Hi I have my custom RF board using S2-LP and balunBALF-SPI2-01D3 ( /external-link.jspa?url=http%3A%2F%2Fwww.st.com%2Fcontent%2Fccc%2Fresource%2Ftechnical%2Fdocument%2Fdatasheet%2Fgroup3%2Fe9%2Fff%2Fcd%2F1e%2F4...

Silas Valera · 2017-12-08

Posted on December 08, 2017 at 23:55Hi I am using STEVAL-FKI868V1 kit with my custom microcontroller board. I tested simple code of 'SDK Basic Generic A' where S2LP kit board is configured as transmitter, I am using other kit board with Nucleo L152R...

Silas Valera · 2017-12-06

Posted on December 06, 2017 at 17:31Hi Has anyone successfully used a chip antenna with S2-LP? Any recommendation for 868Mhz center frequency? I am looking at this chip antenna from Yageo (http://www.yageo.com/documents/recent/An_SMD_870_1204_CHE_01...

Silas Valera · 2019-05-27

Hi @BMoha.19 I understand that yours is a custom S2-LP board. Please make sure the pcb design follows the guidelines. Do you use the balun or discrete components? In either case, make sure the S2-LP chip and components are soldered right and there i...

Silas Valera · 2019-01-12

Thank you so much Luca!I have just received eval board for LIS3MDL, but also try to get LIS2MDL board. Will work on this and see how it goes, will get back if there is any further question.Thanks again!

Silas Valera · 2018-09-15

Hi I could compile the EndNode code and flash into P-Nucleo_LRWan1 kit and run successfully. When the code runs, I see the msgs in the vcom term. I could also see the LoRa signalin the RF spectrum analyzer for each press of "userbutton" on the Nucleo...

Silas Valera · 2018-04-18

Posted on April 19, 2018 at 04:14 Hi Anton, Thank you so much for your best wishes! Yes, the RF PCB design is very much sensitive to many factors like component layout, components case/size, interconnecting traces, ground planes, ground vias, d...

Silas Valera · 2018-04-14

Posted on April 15, 2018 at 01:11Hi AllI received my sample boards, this time with 4 layers and guidelines followed exactly, assembled one and tested!! Works perfectly fine!! I compared with the S2LP EVAL board for the performance, and seems to gi...

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LIS3MDL for detecting car occupancy in parking space

P-NUCLEO-LRWAN1 - Running EndNode code and modification to it

S2-LP Custom Board - Need help

Using S2LP dev kit STEVAL-FKI868V1 with custom microcontroller board

Chip Antenna with S2-LP

Re: S2-LP Custom Board - Need help

Re: LIS3MDL for detecting car occupancy in parking space

Re: P-NUCLEO-LRWAN1 - Running EndNode code and modification to it

Re: S2-LP Custom Board - Need help

Re: S2-LP Custom Board - Need help