Bibliográfia

Arduino

https://www.filipeflop.com/blog/aprenda-usar-o-sensor-de-frequencia-cardiaca/

https://www.arduinoportugal.pt/enviar-sms-arduino-sim800l/

https://www.technolabcreation.com/heartbeat-sensor-using-arduino-heart-rate-monitor/

Pesquisas Cardíacas

https://www.ipemed.com.br/blog/doencas-do-coracao

https://souesportista.decathlon.com.br/como-calcular-frequencia-cardiaca-maxima/

https://www.freeletics.com/pt/blog/posts/zonas-de-frequencia-cardiaca/#gsc.tab=0