diff --git a/modules/.eslintrc.json b/modules/.eslintrc.json
new file mode 100644
index 000000000..d656c2555
--- /dev/null
+++ b/modules/.eslintrc.json
@@ -0,0 +1,163 @@
+{
+    "env": {
+        // TODO: "espruino": false
+        // TODO: "banglejs": false
+    },
+    "extends": "eslint:recommended",
+    "globals": {
+        // Methods and Fields at https://banglejs.com/reference
+        "Array": "readonly",
+        "ArrayBuffer": "readonly",
+        "ArrayBufferView": "readonly",
+        "Bangle": "readonly",
+        "BluetoothDevice": "readonly",
+        "BluetoothRemoteGATTCharacteristic": "readonly",
+        "BluetoothRemoteGATTServer": "readonly",
+        "BluetoothRemoteGATTService": "readonly",
+        "Boolean": "readonly",
+        "console": "readonly",
+        "DataView": "readonly",
+        "Date": "readonly",
+        "E": "readonly",
+        "Error": "readonly",
+        "Flash": "readonly",
+        "Float32Array": "readonly",
+        "Float64Array": "readonly",
+        "fs": "readonly",
+        "Function": "readonly",
+        "Graphics": "readonly",
+        "heatshrink": "readonly",
+        "I2C": "readonly",
+        "Int16Array": "readonly",
+        "Int32Array": "readonly",
+        "Int8Array": "readonly",
+        "InternalError": "readonly",
+        "JSON": "readonly",
+        "Math": "readonly",
+        "Modules": "readonly",
+        "NRF": "readonly",
+        "Number": "readonly",
+        "Object": "readonly",
+        "OneWire": "readonly",
+        "Pin": "readonly",
+        "process": "readonly",
+        "Promise": "readonly",
+        "ReferenceError": "readonly",
+        "RegExp": "readonly",
+        "Serial": "readonly",
+        "SPI": "readonly",
+        "Storage": "readonly",
+        "StorageFile": "readonly",
+        "String": "readonly",
+        "SyntaxError": "readonly",
+        "tensorflow": "readonly",
+        "TFMicroInterpreter": "readonly",
+        "TypeError": "readonly",
+        "Uint16Array": "readonly",
+        "Uint24Array": "readonly",
+        "Uint32Array": "readonly",
+        "Uint8Array": "readonly",
+        "Uint8ClampedArray": "readonly",
+        "Waveform": "readonly",
+        // Methods and Fields at https://banglejs.com/reference
+        "analogRead": "readonly",
+        "analogWrite": "readonly",
+        "arguments": "readonly",
+        "atob": "readonly",
+        "Bluetooth": "readonly",
+        "BTN": "readonly",
+        "BTN1": "readonly",
+        "BTN2": "readonly",
+        "BTN3": "readonly",
+        "BTN4": "readonly",
+        "BTN5": "readonly",
+        "btoa": "readonly",
+        "changeInterval": "readonly",
+        "clearInterval": "readonly",
+        "clearTimeout": "readonly",
+        "clearWatch": "readonly",
+        "decodeURIComponent": "readonly",
+        "digitalPulse": "readonly",
+        "digitalRead": "readonly",
+        "digitalWrite": "readonly",
+        "dump": "readonly",
+        "echo": "readonly",
+        "edit": "readonly",
+        "encodeURIComponent": "readonly",
+        "eval": "readonly",
+        "getPinMode": "readonly",
+        "getSerial": "readonly",
+        "getTime": "readonly",
+        "global": "readonly",
+        "HIGH": "readonly",
+        "I2C1": "readonly",
+        "Infinity": "readonly",
+        "isFinite": "readonly",
+        "isNaN": "readonly",
+        "LED": "readonly",
+        "LED1": "readonly",
+        "LED2": "readonly",
+        "load": "readonly",
+        "LoopbackA": "readonly",
+        "LoopbackB": "readonly",
+        "LOW": "readonly",
+        "NaN": "readonly",
+        "parseFloat": "readonly",
+        "parseInt": "readonly",
+        "peek16": "readonly",
+        "peek32": "readonly",
+        "peek8": "readonly",
+        "pinMode": "readonly",
+        "poke16": "readonly",
+        "poke32": "readonly",
+        "poke8": "readonly",
+        "print": "readonly",
+        "require": "readonly",
+        "reset": "readonly",
+        "save": "readonly",
+        "Serial1": "readonly",
+        "setBusyIndicator": "readonly",
+        "setInterval": "readonly",
+        "setSleepIndicator": "readonly",
+        "setTime": "readonly",
+        "setTimeout": "readonly",
+        "setWatch": "readonly",
+        "shiftOut": "readonly",
+        "SPI1": "readonly",
+        "Terminal": "readonly",
+        "trace": "readonly",
+        "VIBRATE": "readonly",
+        // Aliases and not defined at https://banglejs.com/reference
+        "g": "readonly",
+        "WIDGETS": "readonly"
+    },
+    "parserOptions": {
+        "ecmaVersion": 11
+    },
+    "rules": {
+        "indent": [
+            "off",
+            2,
+            {
+                "SwitchCase": 1
+            }
+        ],
+        "no-case-declarations": "off",
+        "no-constant-condition": "off",
+        "no-delete-var": "off",
+        "no-empty": "off",
+        "no-global-assign": "off",
+        "no-inner-declarations": "off",
+        "no-octal": "off",
+        "no-prototype-builtins": "off",
+        "no-redeclare": "off",
+        "no-unreachable": "warn",
+        "no-cond-assign": "warn",
+        "no-useless-catch": "warn",
+        // TODO: "no-undef": "warn",
+        "no-undef": "off",
+        "no-unused-vars": "off",
+        "no-useless-escape": "off",
+        "no-control-regex" : "off"
+    }
+}