Initial commit

model/Fan.js

@@ -0,0 +1,68 @@
+const fs = require('fs')
+
+module.exports = class Fan {
+    
+    path = ''
+
+    constructor() {
+        if (!this.getPath().length)
+            throw 'PWM PATH NOT FOUND!'
+        this.enableFans()
+    }
+
+    getFans() {
+        return [
+            { id: 2, name: 'CPU_FAN'},
+            { id: 3, name: 'EXT_FAN'},
+            { id: 7, name: 'AIO_PUMP'}
+        ]
+    }
+
+    getPath() {
+        if (this.path.length)
+            return this.path
+        const baseDir = `/sys/class/hwmon`
+        const subDirs = fs.readdirSync(baseDir)
+        for (const subDir of subDirs) {
+            if (fs.existsSync(`${baseDir}/${subDir}/pwm1`)) {
+                this.path = `${baseDir}/${subDir}`
+                return this.path
+            }
+        }
+        return this.path
+    }
+
+    enableFans() {
+        for (const fan of this.getFans()) {
+            fs.writeFileSync(`${this.path}/pwm${fan.id}_enable`, 1)
+        }
+    }
+
+    getRpm(id) {
+        const file = `${this.path}/fan${id}_input`
+        if (!fs.existsSync(file))
+            return false
+        return fs.readFileSync(file, { encoding: 'utf8' }).trim() || false
+    }
+
+    getPwm(id) {
+        const file = `${this.path}/pwm${id}`
+        if (!fs.existsSync(file))
+            return false
+        return fs.readFileSync(file, { encoding: 'utf8' }).trim() || false
+    }
+
+    setPwm(id, pwm) {
+        const file = `${this.path}/pwm${id}`
+        if (!fs.existsSync(file) || pwm < 0 || pwm > 255)
+            return false
+        try {
+            fs.writeFileSync(file, pwm)
+            return true
+        } catch (err) {
+            console.error(err)
+            return false
+        }
+    }
+    
+}