PCB design of a STM32 based board with wifi chip and antenna

We want to develop an IoT board which will have following requirements

1)Board will have one ARM-Cortex M3/M4 based MCU and industrial standard wifi chip interfaced with MCU.
2)Board should have two options for powering it i.e. either it can be powered with external 5V adapter or it is powered with 5V LiPo/Li-Ion bttery pack.
3)Board should have two ports for SPI,two ports for I2C,3-4 channels of ADC,two UART ports,8-10 Digital GPIOs.
4)Board should have LED for power indication,2 LEDs for debugging process.
5)Board will have connector for programming it.
6)Board should have provision of replacing Wifi chip with some other wireless technology like LoRa.
7)RF designing should be such that WiFi connection stays reliable even when signals are not too strong.
8)Board should have provision of mass programming.
About the recuiter
Member since May 20, 2018
Shivbhadrasinh
from Roskilde, Denmark

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