Instalando o node

• site: https://github.com/nodesource/distributions/blob/master/README.md

curl -sL https://deb.nodesource.com/setup_12.x | bash -
apt install -y nodejs

npm --version
6.14.6

node --version
v12.18.2

Instalando node-dht-sensor

• referência: https://www.npmjs.com/package/node-dht-sensor

npm install node-dht-sensor

Testando

mkdir rpi-dht11
cd rpi-dht11/
 
npm init
root@DietPi:~/rpi-dht11# cat teste1.js 
var sensor = require("node-dht-sensor");

sensor.read(11, 18, function(err, temperature, humidity) {
  if (!err) {
    console.log(`temp: ${temperature}°C, humidity: ${humidity}%`);
  }
});
root@DietPi:~/rpi-dht11# node teste1.js 
temp: 24°C, humidity: 62%