Temperature Logger


Block Diagram

Choose a diagram:

Bluetooth LE

Temperature Logger BD1


Temperature Logger BD2

Supported Devices


NTAG SmartSensor



  • Cortex-M0+ processor running at frequencies of up to 8 MHz
  • Cortex-M0+ built-in Nested Vectored Interrupt Controller (NVIC)
  • Arm serial wire debug
  • System tick timer
  • IC reset input


  • 32 kB on-chip flash programming memory
  • 4 kB on-chip EEPROM of which 256 bytes can be write protected
  • 8 kB SRAM

Digital Peripherals

  • Up to 12 General-purpose I/O (GPIO) pins with configurable pull-up/pull-down resistors and repeater mode
  • GPIO pins, which can be used as edge and level sensitive interrupt sources
  • High-current drivers/sinks (20 mA) on four GPIO pins
  • High-current drivers/sinks (20 mA) on two I2C-bus pins
  • Programmable WatchDog timer (WDT)

QN9090 BLE

  • Up to 48MHz Cortex-M4
  • Up to 640 kB flash, up to 152 kB RAM, 128 kB ROM
  • NFC NTAG Option with EEPROM
  • Quad-SPI for execute in place or data storage in NVM
  • BLE 5.0 with 2Mbps and up to 8 simultaneous connections


Quick reference to our documentation types.

1 documents


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