Flores de jardim hi-tech ficam brilhantes quando alguém chega perto.
Alunos mostram vasos com sensores na Campus Party.
Os estudantes do curso de engenharia de controle e automação da Unesp (Universidade Estadual de São Paulo) apresentam na Campus Party, espécie de acampamento nerd que acontece nesta semana em São Paulo, o projeto jardim robótico, feito a partir de fios e flores de acrílico.
Vinte alunos do 2º ano do curso desenvolveram um sistema em que as flores de acrílico com minilâmpadas se acendem e aumentam seu brilho conforme as pessoas se aproximam. Isso é possível porque cada vaso tem um conjunto de sensores que calculam a distância, por meio de um sistema de ultrassom.
Algumas flores são réplicas de girassol. Esse tipo se movimenta a partir de um outro tipo de sensor que faz a resistência elétrica da flor variar de acordo com a quantidade de luz que incide no equipamento. Ao aproximar uma lanterna, por exemplo, o sensor recebe a luz e produz movimento e maior luminosidade no girassol.
Daniel Targino Wassamo, um dos alunos envolvidos no projeto, diz que cada vaso do jardim robótico custa aproximadamente R$ 2.000 e, por enquanto, trata-se apenas de uma experiência universitária.
– Fizemos algo experimental, só para o curso mesmo, mas pode ser que em breve alguma empresa se interesse e o jardim possa ser comercializado.
Fonte: R7
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