An open source data acquisition board based on the STM32F4.
Features:
-10x extremely high resolution analog inputs (32bit primary ADC+ 24bit secondary ADC)
-4x low res analog inputs (12 bit embedded ADC)
-4x NPN logic isolated digital output
-2x programmable analog outputs (12bit DAC + op-amps)
-PC connections available over USB or wifi (nrf24 or esp8266)
-2x I2C interface
-4x UART/USART interface
-1x SPI interface (shared with nrf24)
-Expansion GPIO for extra CAN, digital inputs/outputs, 3v3 regulated power supply, usart, i2c connections
-Wide operating input voltage: from 6,5 to 36 Volt
Additionally to the STM32F4 you can use an ESP8266 to develop custom Wi-Fi application. It is interfaced with the micro by uart.
More information about price, availability and a getting started guide will be made available soon..
[UPDATE]: Link to get $5 of New User Free Credit Bonus on PCBWay website: Invitation Link.