Reference Manual

Arduino®NiclaSenseME
Arduino®NiclaSenseME/Rev.01-12/07/202111/20
NiclaSenseMEBackView
Ref. Description Ref. Description
U1 ATSAMD11D14A-MUTUSBBridge U13 NTS0304EUKZ4-bittranslatingtranscieverIC
U14 AP2112K-3.3TRG10.6A3.3VLDOIC J4 MicroSDCard
J5 SM05B-SRSS-TB(LF)(SN)5-pinEslovconnector J7 microUSBconnector
3.3Processor
TheArduino®NiclaSenseMEispoweredbyanRF52832SoCwithintheANNA-B112module(MD1).The
nRF52832SoCisbuiltaroundanARM®Cortex-M4microcontrollerwithfloatingpointunitrunningat64MHz.
SketchesarestoredinsidethenRF52832internal512KBFLASHwhichissharedwiththebootloader.64KB
SRAMisavaliabletotheuser.TheANNA-B112actsastheSPIhostforthedatalogging2MBflash(U7)andthe
BHI2606-axisIMU(U5).ItisalsothesecondaryfortheBHI260(U5)I2CandSPIconnection.Whilethemodule
itselfrunsat1.8V,alevelshiftercanadjustthelogiclevelbetween1.8Vand3.3VdependingontheLDOsetin
BQ25120(U9).Anexternaloscillator(Y1)providesa32KHzsignal.
3.4BoschBHI2606-axisIMU
TheBoschBHI260isaultralowpowerprogrammablesensor,combiningaFuser2coreprocessor,6-axisIMU
(gyroscopeandaccelerometer)togetherwithasensorfusionsoftwareframework.TheBHI260isthesmart
sensorcore(hostingaprogrammablerecognitionsystem),thathandlescommunicationwithothersensorson
theArduinoNiclaSenseMEviaI2CandSPIconnections.Thereisalsoadedicated2MBFlash(U2)usedtostore
executeinplace(XiP)codeaswellasdatastoragesuchasBoschsensorfusionalgorithm(BSX)calibrationdata.