96Boards Neonkey is the sensor hub platform for all 96Boards compliant family products. ​The Neonkey packs a Cortex-M4 chip, 512 Kbytes flash, 128 Kbytes SRAM, and more details of SPEC as below.

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Component Description
SoC STMicroelectronics STM32F411CE
CPU ARM Cortex-M4
Clock Speed 100 MHz Maximum
SRAM 128 Kbytes
Storage 512 Kbytes flash
Sensors Temp/Humidity, Pressure, ALS/Proximity, Geomagnetic, Accel/Gyro, Microphone
Expansion Interface 40 pin low-speed expansion connector, +1.8V, +5V, GND, UART, I2C, SPI, I2S, SWD, GPIO
Digital Out Voltage 1.8V
Analog In Voltage 3.3V
LED 15 x General purpose LEDs, 4 User LEDs
Button RST (Reset the STM32), USR (boot into bootloader mode for flashing)
Size 60x30mm