ESP8266 Community Forum

- Wed Feb 07, 2018 11:29 am #73779

nexbrd v1.0 contains the esp12e with

SD card holder

Boot mode selector slide switch

Sleep mode jumper. Connect pin16 to RST or leave open

Power method jumper. Wired battery or USB.

Auto program circuit

USB to UART

5 LEDs - RXD, TXD, USER, RESET, GPIO2

Last edited by Rohit Gujarathi on Wed Oct 24, 2018 8:36 am, edited 1 time in total.

- Wed Feb 07, 2018 1:20 pm #73781 Was there a particular enclosure that you designed this for? The odd shape implies that.

- Thu Feb 08, 2018 1:20 am #73791 Sorry, but IMHO the PCB design is very ugly - did you read Espressif's recommendation for PCB design with their wroom module? PCB under antenna is keepout area, but it seems like you have placed many wires, copper pour and even SD card holder into this area. Did you do some measurement with spectrum analyser on this PCB before you try to sell those? It seems like there are growing count of badly designed PCB's and this is one of them