Full Bluetooth LE node is only 8x8x1mm
The 8x8x1mm device integrates the nRF51822 chip from Nordic Semiconductor (running Bluetooth 4.1) – offering a 32 bits ARM Cortex CPU, 128 kB flash memory, analog and digital peripherals SPI, I2C and GPIO.
Combined with its integrated 16 MHz crystal, RF antenna and matching circuit, this module forms a standalone Bluetooth Low Energy node. Power consumption of typically 10.5 mA for transmission, 12.6 mA for reception, 2.3μA for standby mode and 0.5 μA for deep sleep mode enables long battery lifetime. Transmission output power reaches +4 dBm and reception sensitivity -93 dBm.
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