Of course the best way to program these chips is with the Nordic SDK. This chip

also has some basic Arduino support, some micropython support, and is well

supported by MyNewt. Either way you go (SDK/micropython/Arduino) you'll still

need to solder this onto a PCB and load code via a SWD programmer.

TECHNICAL DETAILS



32-bit ARM® Cortex™ M4F CPU



Supply: 1.7V – 3.6V



Memory: 512KB Flash Memory



RAM: 64KB



Tx Power: +4 dBm @ 7.5mA, 0 dBm @ 5.3mA



Rx Sensitivity: -96 dBm @ 5.4mA



Flexible and configurable 32 GPIO (8 analog inputs)



Interfaces: UART / I2C / SPI / PWM / PDM / I2S / NFC



3 x Hardware SPI master ; 3 x Hardware SPI slave‧2 x two-wire master ; 2

x two-wire slave

• 1 x UART (CTS / RTS)

• PDM for digital microphone

• I2S for audio



12-bit / 200KSPS ADC



128-bit AES ECB / CCM / AAR co-processor



Low cost external crystal 32MHz ± 40ppm for Bluetooth ; ± 50ppm for

ANT Plus



Low power 32MHz crystal and RC oscillators



Operating Temp: -40°C to +85°C



Raytac's product page

Product Dimensions: 16.0mm x 10.0mm x 2.2mm / 0.6" x 0.4" x 0.1"

Product Weight: 0.6g / 0.0oz