A Pulse Rate-Triggered Wearable Device for Critical Assistance

<table class="figure-group"><tr class="fig-image" id="a"><td><object data="https://static.hindawi.com/articles/js/volume-2022/9807188/figures/9807188.fig.003a.svgz" name="9807188.fig.003a" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(a) </b>Circuit diagram using Arduino UNO</td></tr><tr class="fig-image" id="b"><td><object data="https://static.hindawi.com/articles/js/volume-2022/9807188/figures/9807188.fig.003b.svgz" name="9807188.fig.003b" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(b) </b>Circuit diagram using NodeMCU</td></tr></table>

<div>Circuit diagram using Arduino UNO and NodeMCU.</div>

Journal of Sensors

fig3

Figure 3

Figure 3: A Pulse Rate-Triggered Wearable Device for Critical Assistance 