<div dir="ltr">Pessoal,<div><br></div><div>achei preços bons no AliExpress. Tem inclusive um conversor USB-serial com voltagem de 5V ou 3.3V selecionável via jumper, por US$ 1,71:</div><div><br></div><div>- ESP-07 (US$ 1,71): <a href="http://pt.aliexpress.com/item/ESP8266-serial-WIFI-industry-milepost-type-ESP-07/32220241193.html">http://pt.aliexpress.com/item/ESP8266-serial-WIFI-industry-milepost-type-ESP-07/32220241193.html</a></div><div><br></div><div>- NodeMCU (US$ 7,20): <a href="http://pt.aliexpress.com/item/V2-4M-4FLASH-NodeMcu-Lua-WIFI-Networking-development-board-Based-ESP8266/32374254587.html?s=p">http://pt.aliexpress.com/item/V2-4M-4FLASH-NodeMcu-Lua-WIFI-Networking-development-board-Based-ESP8266/32374254587.html?s=p</a></div><div><br></div><div>- Conversor USB-serial (US$ 1,71): <a href="http://pt.aliexpress.com/item/FT232RL-FTDI-USB-to-TTL-Serial-Adapter-Module-for-Arduino-Mini-Port-3-3V-5V-Free/32367989748.html">http://pt.aliexpress.com/item/FT232RL-FTDI-USB-to-TTL-Serial-Adapter-Module-for-Arduino-Mini-Port-3-3V-5V-Free/32367989748.html</a></div><div><br></div><div>- Cabo USB tipo B, para o conversor (US$ 1,45): <a href="http://pt.aliexpress.com/item/50cm-USB-2-0-Printer-Cable-Type-A-Male-to-Type-B-Male-Dual-Shielding/32380219279.html">http://pt.aliexpress.com/item/50cm-USB-2-0-Printer-Cable-Type-A-Male-to-Type-B-Male-Dual-Shielding/32380219279.html</a></div><div><br></div><div>Abraços,</div><div><br></div><div>Márcio.</div></div>