STAR OTTO Arduino Board is Based on STMicro STM32 32-bit Cortex-M4 MCU & ESP8266 WiFi SoC

Thanks to STMDuino32 community, there was already support for the Arduino IDE on board based on STMicro STM32 ARM Cortex-M micro-controllers, but  STMicroelectronics and Arduino Srl have introduced the STAR program to bring official support, and unveiled their first board with STAR OTTO Arduino board powered by STM32F469 Cortex M4 MCU at Maker Faire Bay Area 2016.

STM32_Arduino_BoardKey features of STAR OTTO board (ARD-OTTO-STM32):

  • MCU – STMicro STM32F469BIT6 ARM Cortex-M4 MCU @ 180 MHz with 2 MB Flash memory, 384 KB SRAM, Chrom-ART graphics accelerator
  • System Memory – 16 MB SDRAM
  • Storage – 128 KB EEPROM, microSD slot
  • Connectivity – Wi-Fi 802.11b/g/n @ 2.4 GHz via Espressif ESP8266
  • Display I/F – MIPI DSI display interface
  • Camera – Camera connector
  • Audio – 2x MEMS digital microphones, headphone and speaker output
  • USB – 1x micro USB host interface
  • Expansion – Arduino Uno, Due, Mega connectors including 8x ADC, 2x DAC, 32 digital I/Os, and 12 PWM outputs; 25ma max current per I/O pins
  • Power Supply – 6-12V input
  • Dimensions – 101.5 x 53.3 mm
  • Weight – 34 grams

So that’s the third board in 2 weeks by Arduino S.r.l to feature Espressif ESP826, after Arduino UNO WiFi, and Arduino Primo.

STAR_OTTOThe board is also quite powerful, and the company will provide Arduino STAR LCD shield and an NFC shield for the board in Q2 2012, with a separate sensor shields planned for H2 2016. The board can be programmed via either the Arduino IDE or Arduino Studio online IDE (which I can find info on).

Pricing has not been disclosed, but for reference the MCU itself is about $10 per unit for 10k orders. More details can be found on or

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7 Replies to “STAR OTTO Arduino Board is Based on STMicro STM32 32-bit Cortex-M4 MCU & ESP8266 WiFi SoC”

  1. Arduino S.r.l.: We’re turning boards into brand billboards

    but wow,there are single connectors with the mis-spaced Arduino pin layout now? Would love to get the part number for that.

  2. @nimeq
    Terasic does carry lots of logos but only has one processor (well, FPGA) to deal with and their boards are mostly around Altera so at least they have a product path that makes sense.

    These boards on the other hand seem to be thrown together primarily to meet a marketing goal. Especially the previous one here the Primo, that was a ridiculous combo of μCs

  3. @JM

    Yeah that’s definitely incorrect, but technically esp8266 can execute code from flash through a cache which can address up to 8mbit of flash memory.

  4. @cnxsoft
    How they say in Italy this is not a 9 months normal delivery but an equine delivery 13 months and hopefully it will not end in a abortion.
    They are used to it.

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