Last post show that we can get Raspberry Pi temperature via /sys/class/thermal/thermal_zone0/temp. This example show how to read it in Node.js.
var http = require("http");
var fs = require("fs");
var server = http.createServer(function(request, response) {
var temp = fs.readFileSync("/sys/class/thermal/thermal_zone0/temp");
var temp_c = temp/1000;
response.writeHead(200, {"Content-Type": "text/plain"});
response.write("Raspberry Pi cpu temperature: ");
response.write("\n" + temp);
response.write("\n" + temp_c);
response.end();
});
server.listen(8080);
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