Thursday, February 2, 2023

A Small Portable IoT Health Sticker

By Ashwini Kumar Sinha

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ashwiniMonitoring health of a person continuously 24 hours a day and every day of the week is not easy for even doctors and researchers, unless the person is under care in a hospital or clinic. For a common person wishing to monitor his or her health in normal day to day life, it becomes even more difficult because most cardiac and other health monitors are not portable. These cannot be left attached to a person’s body whole day for continuous monitoring.

So, here is how you can design and make a small IoT-enabled monitor that you can stick to your body to capture your health data. It will capture data like heartbeat and body temperature in real time and show it on your phone or any other device that can be connected to Wi-Fi. It can be used anywhere to monitor the health parameters on a continuous basis. The author’s prototype is shown in Fig. 1.

Fig. 1: Author’s prototype
Fig. 1: Author’s prototype

The circuit and working

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Fig. 2 shows circuit diagram of the IoT health sticker, which is built around ESP12F (MOD1 ), MAX 301002 (MOD2), and MCP73812T (MOD3) ICs. The circuit has two parts—the IoT sensor battery charger (left side) and the IoT sensor sticker.

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