Lifelogging is the process of automatically logging data about an individual's daily life, which can then be used in various domains, such as behavior analysis and health monitoring. Various technological devices, including wearable cameras and smartwatches, can help record lifelog data, but getting access to lifelog cameras has proven difficult in recent years, due to a lack of such devices on the market. Creating a lifelog camera that is not only easy to use and cost-efficient but also provides comprehensive functions to log all images about life is challenging due to the lack of hardware and software. This paper introduces MemoriLens, a low-cost camera that efficiently collects, organizes, and stores lifelog data using a readily available custom-designed Raspberry Pi Zero board. The camera is designed to capture images automatically and send them to a private account in cloud services for storage. We open-source the implementing of the camera at: https://github.com/linh222/raspberrylifelogcamera and we encourage lifelog researchers to use our designs and software as required.