1) STM32F437xx audio-player. Flash - 2MB, RAM - 256kB, 4GB NAND Flash on board, FS-USB, leds, buttons, battery charger, debug micro HDMI connector, 3.5mm audio output, class D amplifier, connectors for Wi-Fi/Bluetooth module:
2) I2C controlled LED display:
3) Debug board for STM32F4Discovery kit:
4) STM32F103CBT6 + NRF24L01 debug board:
5) STM32 audio headset debug board:
