Neotron 340ST

The Neotron 340ST is based on the ST 32F746G-DISCOVERY. This is an off-the-shelf evaluation-kit aimed at the hobbyist market featuring an STM32F7 SoC, a colour LCD display, audio output jack and expansion headers. It is not open-source hardware, but it is easily available from ST and it comes with schematics.



  • 216 MHz 32-bit ARM Cortex-M7 CPU core
  • 320 KiB of on-chip SRAM
  • 8 MiB 16-bit SDRAM
  • 16 MiB QuadSPI Flash
  • 480x272 colour TFT LCD
  • Cirrus WM8994ECS Audio codec with:
    • Stereo line output
    • Stereo speaker output
    • Stereo line input
    • S/PDIF input
    • Stereo on-board microphones
  • One high-speed (480 Mbps) USB 2.0 OTG (AB) port in Host mode
  • One full-speed (12 Mbps) USB 2.0 OTG (AB) port in Host mode
  • microSD Slot
  • 10/100 Ethernet Port
  • DCMI digital camera input
  • Arduino headers (3.3V)
  • On-board ST-Link/V2-1 programmer/debugger, with USB Serial interface
  • 7-12V DC barrel jack for power input