How to build a hardware startup

Some good readings about hardware startups and starting a hardware business: How To Build A Hardware Startup, Created by Marc Barros (local copy of paper) "It's a simple question: Why are you starting a company? It's hard to answer. Either because you don't know or you are embarrassed about how simple the reason is. The good news is you can get away without have a clear why for a very long time. Most people will never ask you, instead they will focus on what you have built. The bad news…

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Testing of Clone PI AVR metal detector

Some years ago a have started building Clone PI AVR. Made a PCB, soldered all the components and ... and never found time to finish it until today. Well I haven't finished it yet but at lest gave it a first test run. For the screen and buttons i have re-purposed some front panel of some old router. Now i see that i will have to put it in to another box for better mounting on the metal detector itself but this time it was good enough for test run.…

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Eachine H8 Mini silent mod
Eachine H8 Mini - beeper removed and led soldered instead of it

Eachine H8 Mini silent mod

I was annoyed with Eachines H8 Mine constant beeping in headless mode so decided to make it silent once and for all. This mod is easy - just open the transmitter, remove beeper by desoldering it and solder similar LED instead of it ( check the polarity - positive is marked on the PCB  ). Then drill a hole of LED diameter in front side of controller case and it is done.  

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