[Electronic hardware]

This is sugandhan from india 

Dear friends I have one problem in my phone my phone wifi and hotpot and then Bluetooth are not working when I on hotpot "enabling hotpot turn off your wifi"error is occur but I am already turn off wifi  . I am attend all way of solution it's not work. Any tell me any android application is do replace of hotpot. Please friends send your suggestions and ideas phone model sumsung j7

[Vocal Remover Circuit]

This is sugandhan from India @Geust nanop thanks to share

 

[Momentarily switch circuit]

This sugunthan from india @HarryA u have any video about this topic and can u send me 

[Non Contact Hand Sanitizer Dispenser, Easy, Cheap, No Arduino!]

Thanks for Sharing

[DIY Arduino Power Supply Shield with 3.3v, 5v and 12v Output Options]

Nice