Concept

×

×

Hardware

Schematics

Board

Top

Bottom

Module

×

Application

Firmware

Low Power configuration

• removed nrf_drv_uart.c from Makefile
• Required nRF52832 Errata [89] TWI: Static 400 uA current while using GPIOTE

Low Power Measures

• 250 us @ 12 mA
• 1.5 ms @ 3.5 mA
• 50 uA @ infinite

PPK-II Measures

First wakeup

×

wakeup cycle type 1

×

wakeup cycle type 2

×

sleep period

×

BME280 vs MS8607

• Thread sensortag is using MS8607 and nRF52832 sensortag is using BME280
• Thread sensortag is sampling every 3 sec while nRF52832 sensortag every 40 sec
• Thread sensortag has no case while nRF52832 sensortag is inside a PLA case

temperature

×

×

humidity

×

×

pressure

×

MAX44009 vs VEML6030

• Thread sensortag is using VEML6030 and nRF52832 sensortag is using MAX44009

light

×

×

×