2answers

[PCB Prototype] order PCB of metal admiral metal detector

Helloplease tell me if I can order the PCB that is in this link :https://www.pcbway.com/project/share/Metal_detector_Admiral.html
2answers

[PCB Prototype] https://www.pcbway.com/project/shareproject/Detector_de_metais_pi_polones_design_2019_by_emanuel_douglas.html

HelloI made this detector but it doesn't work.Can you explain the problem more clearly?Another question, what does p + and p- mean?Finally, 7905 gets very hot. Thank you for reading.
Ranking Name Answers
1 PCBWay Team 13
2 Engineer 1
3 Engineer 1
4 Tim Keiper 1
5 Engineer 1