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Sipeed M0sense, a small board with Bluetooth

Sipeed M0sense is a small-sized IoT (AIOT) artificial intelligence development board based on the BL702 chip from Bouffalo Lab.

Obviously, with that name, the Sipeed M0sense is presented as a low-cost alternative to the Arduino 33 Sense. In fact, in the manufacturer’s own documentation, they make the comparison.

The Sipeed M0sense has a single-core 32-bit processor at 144Mhz with RISC-V architecture. It has 132 KB of SRAM and 192KB of ROM, and 512 KB of flash storage.


The BL702 has 15 GPIO, five of which can generate PWM, a 12-bit ADC, and a 10-bit DAC. As for connections, we have an SPI port, two UARTs, one I2C port, and an I2S.

The board integrates a 6-axis IMU (accelerometer + gyroscope), microphone, RGB LED, and an 8-pin connector for connecting an LCD screen (optional).

The set is completed with Bluetooth BLE 5.0 for wireless connectivity and IoT applications.

Some of its features are,

  • Bouffalo Lab BL702 32-bit RISC-V (RV32) at 144 MHz
  • Memory 132 KB SRAM, 192KB ROM, 512KB Flash
  • 1x SPI, 2x UART, 1x I2C, 1xI2S
  • 15x GPIO, 5x PWM, 1x 12-bit ADC, 1x 10-bit DAC
  • 2x 32-bit timer
  • Encoder decoder, PIR decoder, IR remote interface
  • 8 DMA channels
  • Bluetooth 5.0 (BLE)
  • Microphone
  • USB Type-C
  • Power supply 5V
  • Dimensions 23 x 18mm

In short, a very complete board, which stands out for its very small size, power, the integration of various devices (such as the IMU and the microphone), and providing Bluetooth wireless connectivity.

We can purchase the Sipeed M0sense for about €5 if we buy it without an LCD screen, or for €7 with a 0.96” screen. In addition to this, we will have to add about €5 for shipping costs.

More information,