Customer:
I received a package with ordered components. You sent one extra module - a humidity sensor with LM393 (SKU: 100030). Also, one of the DAC modules doesn’t work (a resistor wasn’t soldered correctly). Once I’ve checked everything, can I send the defective modules and this extra sensor back for replacement? I’d also like an explanation of how the “GND VCC JD-VCC” jumper works on the 8-channel relay module I ordered - or ideally a schematic or block diagram for this board.
Original message (Croatian)
Samo da vam javim da sam u petak dobio paket s naručenim komponentama. Poslali ste jedan modul više nego što sam naručio – senzor vlage u zraku s LM393 (SKU: 100030).
Također, jedan od modula s DACom ne radi (otpornik nije korektno zalemljen). Kada provjerim sve poslano, da li bi bilo u redu da vam pošaljem za zamjenu eventualne defektne module + ovaj senzor viška?
Također bi vas molio za objašnjenje korištenja „jumpera GND VCC JD-VCC“ na relejnom modulu s 8 kanala koji sam naručio – ili još bolje ako imate neku shemu/blok shemu za ovu pločicu.
Hvala vam unaprijed. LP,
[name removed]
Originally submitted via the contact form on soldered.com on 16 October 2017. Migrated to the forum for community visibility.