SIDK S1SBP6A Bio-processor dev kit

S1SBP6A supports various health signals such as ECG (Electrocardiography), PPG (Photoplethysmography) and BIA (Bioelectrical Impedance Analysis) with single chipset

Overview¶

S1SBP6A supports various health signals such as ECG (Electrocardiography), PPG (Photoplethysmography) and BIA (Bioelectrical Impedance Analysis) with single chipset. All the health signals can be achieved simultaneously and it can process the various signals within S1SBP6A sensor hub by using powerful Cortex-M4F processor (102.4MHz). This sensor hub has 2MB of flash memory and 256KB of SRAM for fast algorithm calculations. The Samsung Bio-processor platform SIDK has been designed for users to develop wellness or medical devices easily. Based on Samsung S1SBP6A sensor hub, the board provides an extensive set of sensors like PPG module, temperature and 6-axis that can be used as building blocks for health application. nRF52833 BLE chipset is utilized to transmit health data to the mobile phone or other wireless devices. The Samsung Bio-processor platform SIDK also provides ArduinoTM UNO V3 compatible headers, enabling plug and play of various shield boards. It comes with an on-board debugger/programmer (DAPlink) to easily debug and program the S1SBP6A.

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MCU Features¶

• 154 pin WLP 4.7 x 4.6 x 0.4 mm, 0.35 mm pin pitch
• Arm Cortex-M4 with FPU with maximum 102.4 MHz operation
• On-chip Flash Memory (2 MB)
• On-chip SRAM (256 KB for MCU)
• Dedicated low-power Analog Front Ends (AFEs) for ECG, PPG, and BIA
• Integrated LED drivers for PPG and analog current signal synthesizer for BIA
• Sample Rate Converter (SRC) as a hardware accelerator
• 12b GP analog readouts
• Real Time Clock (RTC) with system control
• Built-in Low-Dropout Regulators (LDOs) along with system POR and BOR
• Embedded PLL and Oscillators (OSC)
• Security IPs such as DTRNG (Digital True Random Number Generator) and AES (Advanced Encryption Standard)
• Versatile digital interfaces such as SPI/I2C/UART

ECG subsystem¶

• Single channel Low-noise of 3.5μVrms(0.5Hz250Hz)
• High CMRR > 80dB
• Maximum of 10mVp-p ECG inputs

PPG subsystem¶

• Built-in four flexible LED driver(Red/IR/Green x2)
• Flexible LED driving current 0 ~ 100mA or 0 ~ 50mA
• Two PD readout with ambient light rejection
• Wide dynamic range readout 10kΩ ~ 2MΩ

BIA subsystem¶

• Four points complex impedance measurements
• Single-frequency 50KHz
• High input impedance for wearable device
• Wide-swing OP-amp (VDD=1.1V, VSIGNAL=750mV)

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Board Features¶

• Samsung S1SBP6A sensor hub
  • ARM Cortex-M4F single-core MCU with 2MB flash and 256KB SRAM memory
  • ECG / BIA / PPG signal readout AFEs
• Nordic nRF52833 Bluetooth Low Energy connectivity SoC
• On-board ECG / BIA electrodes for bio signal acquisition
• ECG Jack and BIA header for external lead usage
• On-board sensors :
  • PPG module (OSRAM SFH 7072)
  • Temperature sensor (TI TMP117)
  • 6-axis sensor (TDK ICM-20602)
• NXP LPC11U35 on-board programmer and debugger for S1SBP6A
• FTDI FT232 on-board debugger for nRF52833

• ArduinoTM UNO V3 compatible headers

Board Pinout¶

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Technical Reference¶

User Manual¶

• User Manual

Schematics¶

• Module Schematic
• Board Schematic

Block Diagram¶

• Block Diagram

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Example applications¶

• mbed-os-example-blinky
• BP6A example with ECG, PPG, BIA sensors

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Known issues¶

• Please check issues on Github

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