add bthome_vibration

Author: gfwilliams

apps.json

@@ -283,13 +283,25 @@
     "icon": "icon.png",
     "version":"0.01",
     "description": "Turn your Espruino device into a BTHome/Home Assistant compatible energy monitor by sensing flashes from your electricty meter (needs an LDR wired between D1 and D2)",
-    "tags": "bluetooth,homeassistant,energy,power,electricity",
+    "tags": "bluetooth,homeassistant,energy,power,electricity,sensor",
     "readme": "README.md",
     "needsFeatures":["BLE"],
     "storage": [
       {"name":".bootcde","url":"app.js"}
     ]
   },
+  { "id": "bthome_vibration",
+    "name": "BTHome Vibration Sensor",
+    "icon": "icon.png",
+    "version":"0.01",
+    "description": "Turn your Puck.js into a BTHome/Home Assistant compatible vibration/movement sensor. When it moves, it'll send that information as a BTHome packet which will then appear in HomeAssistant.",
+    "tags": "bluetooth,homeassistant,vibration,movement,sensor",
+    "readme": "README.md",
+    "needsFeatures":["BLE","ACCEL"],
+    "storage": [
+      {"name":".bootcde","url":"app.js"}
+    ]
+  },
   { "id": "ha_led",
     "name": "Home Assistant Bluetooth LED",
     "icon": "icon.png",

apps/bthome_vibration/ChangeLog

@@ -0,0 +1 @@
+0.01: New App!

apps/bthome_vibration/README.md

@@ -0,0 +1,13 @@
+# BTHome Vibration Sensor
+
+This advertises battery level, temperature, and whether the Puck is moving or not in a [BTHome (https://bthome.io/)](https://bthome.io/) compatible format, which can then be used in https://www.home-assistant.io/
+
+This is based on https://www.espruino.com/BTHome and https://www.espruino.com/Puck.js#accelerometer-gyro
+
+The code is available on https://www.espruino.com/Puck.js+Vibration+Sensor
+
+## Usage
+
+Install the app and disconnect, then attach the Puck.js running this code onto something that can move (such as a washing machine).
+
+The current battery level, temperature, and whether the Puck is moving or not will then be sent to Home Assistant.

apps/bthome_vibration/app.js

@@ -0,0 +1,52 @@
+const TIMEOUT = 10000; // 10s
+// using code from https://www.espruino.com/Puck.js#accelerometer-gyro
+// and https://www.espruino.com/BTHome
+
+// Timeout to consider movement stopped
+var idleTimeout;
+// Are we moving?
+var isMoving = false;
+
+function updateAdvertising() {
+  NRF.setAdvertising(require("BTHome").getAdvertisement([
+    {
+      type : "battery",
+      v : E.getBattery()
+    },
+    {
+      type : "temperature",
+      v : E.getTemperature()
+    },
+    {
+      type : "moving",
+      v : isMoving
+    },
+  ]), {
+    name : "Movement",
+    interval: 600,
+    // not being connectable/scannable saves power (but you'll need to reboot to connect again with the IDE!)
+    //connectable : false, scannable : false,
+  });
+}
+
+function onIdle() {
+  idleTimeout = undefined;
+  isMoving = false;
+  updateAdvertising();
+  //LED.reset();
+}
+
+require("puckjsv2-accel-movement").on();
+Puck.on('accel',function(a) { "ram"
+  //LED.set();
+  if (idleTimeout) clearTimeout(idleTimeout);
+  else {
+    isMoving = true;
+    updateAdvertising();
+  }
+  idleTimeout = setTimeout(onIdle, TIMEOUT);
+});
+// turn off with require("puckjsv2-accel-movement").off();
+
+// Update advertising state every 2 minutes to update battery/temp
+setInterval(updateAdvertising, 2*60000);