I bought an emonTx last month and yesterday I started to configure it. The LED was lighting / blinking normally. I connected an emonESP Huzzah I bought here too. I was able to configure it just like explained in the site. I bought a UART to USB adapter too (here) and I tested too.
Everything seems fine until today. The LED is not lighting when I power it up and when I connect the Huzzah to the Emontx, I cannot find its IP address anymore in my network. It seems that emonTx is not powering up anymore. Did I do something wrong? Could I burn / brake it? Oh my God, I live in Brazil and it was very expensive… I kindly ask for some help, please.