I try to use chainlink function to retrieve local data, but got an error of "Error: Import of module node-dht-sensor not allowed" . I'd like to know whether Chainlink Function can be used to get local live data.
const sensor = require('node-dht-sensor');
const DHT_TYPE = 11;
const DHT_PIN = 4;
function readTemperature() {
return new Promise((resolve, reject) => {
sensor.read(DHT_TYPE, DHT_PIN, (err, temperature, humidity) => {
if (err) {
reject(err);
} else {
resolve({ temperature, humidity });
}
});
});
}
const { temperature, humidity } = await readTemperature();
const roundedfootprint = Math.round(temperature)
return Functions.encodeUint256(roundedfootprint)
Afaik, currently, Chainlink Functions do not support local live data. To achieve this, you need to update off-chain IoT data on a cloud-hosted database service, such as AWS IoT Core.