Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
Thanks for answer me: actually alec_t I can't use a 6 v battery because I'm using a relays also it is 12V and also relay driver uln 2003 need 12v supply, I can replace some relays with mos fets but something can't because it need to switch some data (like mobile speed dial buttons,) and mobile...
Hi, I'm creating some monitoring and GPS system in my official bag, for that I'm using arduino, sim 900 seeduino board and Uln 2003 relay driver and 6 relays and 7805 regulator- 3nos and also 7812 - 1 no, While I finished with this components I closed everything inside a box and placed it in a...
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