Designing and implementation of free RTOS multichannel data logger using microcontroller

Abstract

A data logger is an electronic device that records data over time or in relation to location either with a built in instrument or sensor. In the paper, a data logger is designed and developed using STM32F407 DISCOVERY Board. An code is developed and tested using STM32CUBE and Atollic True Studio softwares in the proposed work. GSM Module SIM900EI is interfaced with microcontroller to send voltage output values of all the sensors interfaced with it for cloud computation in the paper. The paper also demonstrate hardware implementation of the designed data logger. The proposed data logger can be used in the Automatic Weather Stations (AWS).