Add overview popout

package.json

@@ -33,7 +33,8 @@
 		"tailwindcss": "^3.4.3",
 		"tslib": "^2.4.1",
 		"typescript": "^5.0.0",
-		"vite": "^5.0.3"
+		"vite": "^5.0.3",
+		"vite-plugin-node-polyfills": "^0.22.0"
 	},
 	"type": "module",
 	"dependencies": {

src/lib/client.ts

@@ -0,0 +1,80 @@
+import { source } from 'sveltekit-sse';
+import {
+	decodeMessage,
+	unmarshalMessage,
+	type AMSError,
+	type AMSStatus,
+	type MarshalledMessage,
+	type ShuntLog,
+	type SlaveLog,
+	type SlaveStatus
+} from './messages';
+import { writable, type Writable } from 'svelte/store';
+import { SlaveLogData } from './slave-log';
+
+export type ShuntData = {
+	current: number;
+	voltage1: number;
+	voltage2: number;
+};
+
+export const error: Writable<AMSError | undefined> = writable(undefined);
+export const amsStatus: Writable<AMSStatus | undefined> = writable(undefined);
+export const slaveStatus: Writable<Record<number, SlaveStatus>> = writable({});
+export const slaveLog: Writable<Record<number, SlaveLogData>> = writable({});
+export const shunt: Writable<ShuntData> = writable({ current: 0, voltage1: 0, voltage2: 0 });
+
+source('/data')
+	.select('message')
+	.subscribe((value) => {
+		if (!value) {
+			return;
+		}
+		const msg = decodeMessage(unmarshalMessage(JSON.parse(value) as MarshalledMessage));
+		if (!msg) {
+			return;
+		}
+
+		switch (msg.type) {
+			case 'error':
+				error.set(msg as AMSError);
+				break;
+			case 'status':
+				amsStatus.set(msg as AMSStatus);
+				break;
+			case 'slaveStatus': {
+				const status = msg as SlaveStatus;
+				slaveStatus.update((r) => {
+					r[status.slaveId] = status;
+					return r;
+				});
+				break;
+			}
+			case 'slaveLog':
+				handleSlaveLog(msg as SlaveLog);
+				break;
+			case 'shuntCurrentLog':
+				shunt.update((s) => {
+					s.current = (msg as ShuntLog).value;
+					return s;
+				});
+				break;
+			case 'shuntVoltage1Log':
+				shunt.update((s) => Object.assign(s, { voltage1: (msg as ShuntLog).value }));
+				break;
+			case 'shuntVoltage2Log':
+				shunt.update((s) => Object.assign(s, { voltage2: (msg as ShuntLog).value }));
+				break;
+		}
+	});
+
+function handleSlaveLog(msg: SlaveLog) {
+	slaveLog.update((r) => {
+		if (!(msg.slaveId in r)) {
+			r[msg.slaveId] = new SlaveLogData();
+		}
+		const slave = r[msg.slaveId];
+		slave.handleMsg(msg);
+		return r;
+	});
+}

src/lib/defs.ts

@@ -1,2 +1,2 @@
 export const N_CELLS_PER_SLAVE = 15;
-export const N_TEMP_SENSORS_PER_SLAVE = 32;
+export const N_TEMP_SENSORS_PER_SLAVE = 44;

src/lib/messages.ts

@@ -1,5 +1,44 @@
+export interface MarshalledMessage {
+	id: number;
+	ext: boolean;
+	canfd: boolean;
+	data: number[];
+}
+
+export type RawMessage = {
+	ext?: boolean;
+	canfd?: boolean;
+	id: number;
+	data: Buffer;
+};
+
+export function marshalMessage(msg: RawMessage): MarshalledMessage {
+	return {
+		id: msg.id,
+		ext: msg.ext ?? false,
+		canfd: msg.canfd ?? false,
+		data: Array.from(msg.data)
+	};
+}
+
+export function unmarshalMessage(msg: MarshalledMessage): RawMessage {
+	return {
+		id: msg.id,
+		ext: msg.ext,
+		canfd: msg.canfd,
+		data: Buffer.from(msg.data)
+	};
+}
+
 export interface AMSMessage {
-	type: 'error' | 'status' | 'slaveStatus' | 'slaveLog';
+	type:
+		| 'error'
+		| 'status'
+		| 'slaveStatus'
+		| 'slaveLog'
+		| 'shuntCurrentLog'
+		| 'shuntVoltage1Log'
+		| 'shuntVoltage2Log';
 }
 
 export interface AMSError extends AMSMessage {
@@ -68,3 +107,176 @@ export interface SlaveLogTemperature extends SlaveLog {
 	startIndex: number;
 	temperatures: [number, number, number, number, number, number, number, number];
 }
+
+export interface ShuntLog extends AMSMessage {
+	type: 'shuntCurrentLog' | 'shuntVoltage1Log' | 'shuntVoltage2Log';
+
+	value: number;
+}
+
+import { N_CELLS_PER_SLAVE, N_TEMP_SENSORS_PER_SLAVE } from '$lib/defs';
+
+export const CAN_ID_AMS_ERROR = 0x00c;
+export const CAN_ID_AMS_STATUS = 0x00a;
+export const CAN_ID_AMS_SLAVE_STATUS_BASE = 0x080;
+export const CAN_ID_AMS_SLAVE_STATUS_MASK = 0xff0;
+export const CAN_ID_AMS_SLAVE_LOG_BASE = 0x600;
+export const CAN_ID_AMS_SLAVE_LOG_MASK = 0xf00;
+export const CAN_ID_SHUNT_CURRENT = 0x521;
+export const CAN_ID_SHUNT_VOLTAGE_1 = 0x522;
+export const CAN_ID_SHUNT_VOLTAGE_2 = 0x523;
+
+function decodeError(msg: RawMessage): AMSError | null {
+	if (msg.data.length != 2) {
+		console.warn('invalid error frame', msg);
+		return null;
+	}
+
+	console.log('error', msg);
+	const data = msg.data;
+	return {
+		type: 'error',
+		kind: data[0],
+		arg: data[1]
+	};
+}
+
+function decodeStatus(msg: RawMessage): AMSStatus | null {
+	if (msg.data.length != 8) {
+		console.warn('invalid status frame', msg);
+		return null;
+	}
+
+	const data = msg.data;
+	return {
+		type: 'status',
+		state: data[0] & 0x7f,
+		sdcClosed: !!(data[0] & 0x80),
+		soc: data[1],
+		minCellVolt: data.readUInt16BE(2) * 1e-3,
+		maxCellTemp: data.readUInt16BE(4) * 0.0625,
+		imdOK: !!(data[6] & 0x80)
+	};
+}
+
+function decodeSlaveStatus(msg: RawMessage): SlaveStatus | null {
+	if (msg.data.length != 8) {
+		console.warn('invalid slave status frame', msg);
+		return null;
+	}
+
+	const data = msg.data;
+	return {
+		type: 'slaveStatus',
+
+		slaveId: data[0] & 0x7f,
+		error: !!(data[0] & 0x80),
+		soc: data[1],
+		minCellVolt: data.readUInt16BE(2) * 1e-3,
+		maxCellVolt: data.readUInt16BE(4) * 1e-3,
+		maxTemp: data.readUInt16BE(6) * 0.0625
+	};
+}
+
+function decodeSlaveLog(msg: RawMessage): SlaveLog | null {
+	if (msg.data.length != 8) {
+		console.warn('invalid slave log frame', msg);
+		return null;
+	}
+
+	const slaveId = (msg.id & 0xf0) >> 4;
+	const logIndex = msg.id & 0x00f;
+	const data = msg.data;
+	if (logIndex < N_CELLS_PER_SLAVE / 4) {
+		const startIndex = logIndex * 4;
+		const voltages = [];
+		for (let i = 0; i < 4; i++) {
+			voltages.push(data.readUInt16BE(2 * i) * 1e-3);
+		}
+		const msg: SlaveLogVoltage = {
+			type: 'slaveLog',
+			slaveId,
+
+			logType: 'voltage',
+			startIndex,
+			voltages: voltages as [number, number, number, number]
+		};
+		return msg;
+	} else if (logIndex == N_CELLS_PER_SLAVE / 4) {
+		const msg: SlaveLogLastCell = {
+			type: 'slaveLog',
+			slaveId,
+
+			logType: 'lastCell',
+			voltage: data.readUInt16BE(0) * 1e-3,
+			failed_temp_sensors: data.readInt32BE(2)
+		};
+		return msg;
+	} else if (logIndex < N_CELLS_PER_SLAVE / 4 + 1 + N_TEMP_SENSORS_PER_SLAVE / 8) {
+		const temperatures = [];
+		for (let i = 0; i < 8; i++) {
+			temperatures.push(data.readInt8(i) * 1);
+		}
+		const msg: SlaveLogTemperature = {
+			type: 'slaveLog',
+			slaveId,
+
+			logType: 'temperature',
+			startIndex: (logIndex - N_CELLS_PER_SLAVE / 4 - 1) * 8,
+			temperatures: temperatures as [number, number, number, number, number, number, number, number]
+		};
+		return msg;
+	} else {
+		console.warn('Unknown slave log index', msg.id);
+		return null;
+	}
+}
+
+function decodeShunt(msg: RawMessage, type: ShuntLog['type']): ShuntLog | null {
+	if (msg.data.length != 6) {
+		console.warn('invalid shunt log frame', msg);
+		return null;
+	}
+
+	return {
+		type: type,
+		value: msg.data.readInt32BE(2) * 1e-3
+	};
+}
+
+export function decodeMessage(msg: RawMessage): AMSMessage | null {
+	if (msg.ext || msg.canfd) {
+		console.warn('invalid message', msg);
+		return null;
+	}
+
+	let message: AMSMessage | null = null;
+
+	if ((msg.id & CAN_ID_AMS_SLAVE_STATUS_MASK) == CAN_ID_AMS_SLAVE_STATUS_BASE) {
+		message = decodeSlaveStatus(msg);
+	} else if ((msg.id & CAN_ID_AMS_SLAVE_LOG_MASK) == CAN_ID_AMS_SLAVE_LOG_BASE) {
+		message = decodeSlaveLog(msg);
+	} else {
+		switch (msg.id) {
+			case CAN_ID_AMS_ERROR:
+				message = decodeError(msg);
+				break;
+			case CAN_ID_AMS_STATUS:
+				message = decodeStatus(msg);
+				break;
+			case CAN_ID_SHUNT_CURRENT:
+				message = decodeShunt(msg, 'shuntCurrentLog');
+				break;
+			case CAN_ID_SHUNT_VOLTAGE_1:
+				message = decodeShunt(msg, 'shuntVoltage1Log');
+				break;
+			case CAN_ID_SHUNT_VOLTAGE_2:
+				message = decodeShunt(msg, 'shuntVoltage2Log');
+				break;
+			default:
+				console.warn(`unknown message id ${msg.id}`, msg);
+		}
+	}
+
+	return message;
+}

src/routes/+layout.svelte

@@ -0,0 +1,5 @@
+<script lang="ts">
+	import '../app.css';
+</script>
+
+<slot />

src/routes/+page.svelte

@@ -1,59 +1,44 @@
 <script lang="ts">
-	import type { AMSError, AMSMessage, AMSStatus, SlaveLog, SlaveStatus } from '$lib/messages';
-	import { source } from 'sveltekit-sse';
 	import MasterStatusDisplay from './master-status-display.svelte';
 	import SlaveStatusDisplay from './slave-status-display.svelte';
-	import '../app.css';
 	import MasterErrorDisplay from './master-error-display.svelte';
-	import { SlaveLogData } from '$lib/slave-log';
-	// const value = source('/data').select('message');
-
-	let error: AMSError | undefined;
-	let amsStatus: AMSStatus | undefined;
-	let slaveStatus: Record<number, SlaveStatus> = {};
-	let slaveLog: Record<number, SlaveLogData> = {};
-
-	function handleSlaveLog(msg: SlaveLog) {
-		if (!(msg.slaveId in slaveLog)) {
-			slaveLog[msg.slaveId] = new SlaveLogData();
-		}
-		const slave = slaveLog[msg.slaveId];
-		slave.handleMsg(msg);
-	}
-
-	source('/data')
-		.select('message')
-		.subscribe((value) => {
-			if (!value) {
-				return;
-			}
-			const msg = JSON.parse(value) as AMSMessage;
-			switch (msg.type) {
-				case 'error':
-					error = msg as AMSError;
-					break;
-				case 'status':
-					amsStatus = msg as AMSStatus;
-					break;
-				case 'slaveStatus': {
-					const status = msg as SlaveStatus;
-					slaveStatus[status.slaveId] = status;
-					break;
-				}
-				case 'slaveLog':
-					handleSlaveLog(msg as SlaveLog);
-					break;
-			}
-		});
+	import ShuntStatusDisplay from './shunt-status-display.svelte';
+	import Overview from './overview.svelte';
+	import { amsStatus, error, shunt, slaveLog, slaveStatus } from '$lib/client';
 </script>
 
-<h1>FaSTTUBe Charger</h1>
+<svelte:head>
+	<title>Charging</title>
+</svelte:head>
 
-<MasterErrorDisplay {error} />
-<MasterStatusDisplay status={amsStatus} />
-
-<div class="slaves">
-	{#each Object.entries(slaveStatus) as [id, status]}
-		<SlaveStatusDisplay {id} {status} logData={slaveLog[id]} />
+<div class="vertical-wrapper">
+	<Overview amsStatus={$amsStatus} shunt={$shunt} showPopout={true} />
+	<div class="wrapper">
+		<MasterErrorDisplay error={$error} />
+		<MasterStatusDisplay status={$amsStatus} />
+		<ShuntStatusDisplay data={$shunt} />
+	</div>
+	<div class="wrapper">
+		{#each Object.entries($slaveStatus) as [id, status]}
+			<SlaveStatusDisplay {id} {status} logData={$slaveLog[id]} />
 		{/each}
 	</div>
+</div>
+
+<style>
+	.wrapper {
+		display: flex;
+		flex-direction: row;
+		justify-content: center;
+		align-items: center;
+	}
+
+	.vertical-wrapper {
+		display: flex;
+		flex-direction: column;
+		justify-content: center;
+		align-items: center;
+		margin: 0;
+		padding: 0;
+	}
+</style>

src/routes/data/+server.ts

@@ -1,136 +1,18 @@
 import { produce } from 'sveltekit-sse';
 import * as can from 'socketcan';
-import type {
-	AMSError,
-	AMSMessage,
-	AMSStatus,
-	SlaveLog,
-	SlaveLogLastCell,
-	SlaveLogTemperature,
-	SlaveLogVoltage,
-	SlaveStatus
+import {
+	type RawMessage,
+	marshalMessage,
+	CAN_ID_AMS_ERROR,
+	CAN_ID_AMS_SLAVE_STATUS_MASK,
+	CAN_ID_AMS_SLAVE_LOG_MASK,
+	CAN_ID_AMS_SLAVE_LOG_BASE,
+	CAN_ID_AMS_SLAVE_STATUS_BASE,
+	CAN_ID_AMS_STATUS,
+	CAN_ID_SHUNT_CURRENT,
+	CAN_ID_SHUNT_VOLTAGE_1,
+	CAN_ID_SHUNT_VOLTAGE_2
 } from '$lib/messages';
-import { N_CELLS_PER_SLAVE, N_TEMP_SENSORS_PER_SLAVE } from '$lib/defs';
-
-const CAN_ID_AMS_ERROR = 0x00c;
-const CAN_ID_AMS_STATUS = 0x00a;
-const CAN_ID_AMS_SLAVE_STATUS_BASE = 0x080;
-const CAN_ID_AMS_SLAVE_STATUS_MASK = 0xff0;
-const CAN_ID_AMS_SLAVE_LOG_BASE = 0x600;
-const CAN_ID_AMS_SLAVE_LOG_MASK = 0xf00;
-
-type RawMessage = {
-	ext?: boolean;
-	canfd?: boolean;
-	id: number;
-	data: Buffer;
-};
-
-function decodeError(msg: RawMessage): AMSError | null {
-	if (msg.data.length != 2) {
-		console.warn('invalid error frame', msg);
-		return null;
-	}
-
-	console.log('error', msg);
-	const data = msg.data;
-	return {
-		type: 'error',
-		kind: data[0],
-		arg: data[1]
-	};
-}
-
-function decodeStatus(msg: RawMessage): AMSStatus | null {
-	if (msg.data.length != 8) {
-		console.warn('invalid status frame', msg);
-		return null;
-	}
-
-	const data = msg.data;
-	return {
-		type: 'status',
-		state: data[0] & 0x7f,
-		sdcClosed: !!(data[0] & 0x80),
-		soc: data[1],
-		minCellVolt: data.readUInt16BE(2) * 1e-3,
-		maxCellTemp: data.readUInt16BE(4) * 0.0625,
-		imdOK: !!(data[6] & 0x80)
-	};
-}
-
-function decodeSlaveStatus(msg: RawMessage): SlaveStatus | null {
-	if (msg.data.length != 8) {
-		console.warn('invalid slave status frame', msg);
-		return null;
-	}
-
-	const data = msg.data;
-	return {
-		type: 'slaveStatus',
-
-		slaveId: data[0] & 0x7f,
-		error: !!(data[0] & 0x80),
-		soc: data[1],
-		minCellVolt: data.readUInt16BE(2) * 1e-3,
-		maxCellVolt: data.readUInt16BE(4) * 1e-3,
-		maxTemp: data.readUInt16BE(6) * 0.0625
-	};
-}
-
-function decodeSlaveLog(msg: RawMessage): SlaveLog | null {
-	if (msg.data.length != 8) {
-		console.warn('invalid slave log frame', msg);
-		return null;
-	}
-
-	const slaveId = (msg.id & 0xf0) >> 4;
-	const logIndex = msg.id & 0x00f;
-	const data = msg.data;
-	if (logIndex < N_CELLS_PER_SLAVE / 4) {
-		const startIndex = logIndex * 4;
-		const voltages = [];
-		for (let i = 0; i < 4; i++) {
-			voltages.push(data.readUInt16BE(2 * i) * 1e-3);
-		}
-		const msg: SlaveLogVoltage = {
-			type: 'slaveLog',
-			slaveId,
-
-			logType: 'voltage',
-			startIndex,
-			voltages: voltages as [number, number, number, number]
-		};
-		return msg;
-	} else if (logIndex == N_CELLS_PER_SLAVE / 4) {
-		const msg: SlaveLogLastCell = {
-			type: 'slaveLog',
-			slaveId,
-
-			logType: 'lastCell',
-			voltage: data.readUInt16BE(0) * 1e-3,
-			failed_temp_sensors: data.readInt32BE(2)
-		};
-		return msg;
-	} else if (logIndex < N_CELLS_PER_SLAVE / 4 + 1 + N_TEMP_SENSORS_PER_SLAVE / 8) {
-		const temperatures = [];
-		for (let i = 0; i < 8; i++) {
-			temperatures.push(data.readInt8(i) * 1);
-		}
-		const msg: SlaveLogTemperature = {
-			type: 'slaveLog',
-			slaveId,
-
-			logType: 'temperature',
-			startIndex: (logIndex - N_CELLS_PER_SLAVE / 4 - 1) * 8,
-			temperatures: temperatures as [number, number, number, number, number, number, number, number]
-		};
-		return msg;
-	} else {
-		console.warn('Unknown slave log index', msg.id);
-		return null;
-	}
-}
 
 export function POST() {
 	return produce(async function start({ emit }) {
@@ -139,36 +21,14 @@ export function POST() {
 			{ id: CAN_ID_AMS_ERROR, mask: 0xfff },
 			{ id: CAN_ID_AMS_STATUS, mask: 0xfff },
 			{ id: CAN_ID_AMS_SLAVE_STATUS_BASE, mask: CAN_ID_AMS_SLAVE_STATUS_MASK },
-			{ id: CAN_ID_AMS_SLAVE_LOG_BASE, mask: CAN_ID_AMS_SLAVE_LOG_MASK }
+			{ id: CAN_ID_AMS_SLAVE_LOG_BASE, mask: CAN_ID_AMS_SLAVE_LOG_MASK },
+			{ id: CAN_ID_SHUNT_CURRENT, mask: 0xfff },
+			{ id: CAN_ID_SHUNT_VOLTAGE_1, mask: 0xfff },
+			{ id: CAN_ID_SHUNT_VOLTAGE_2, mask: 0xfff }
 		]);
 
 		network.addListener('onMessage', (msg: RawMessage) => {
-			if (msg.ext || msg.canfd) {
-				console.warn('invalid frame', msg);
-				return;
-			}
-
-			let message: AMSMessage | null = null;
-			if ((msg.id & CAN_ID_AMS_SLAVE_STATUS_MASK) == CAN_ID_AMS_SLAVE_STATUS_BASE) {
-				message = decodeSlaveStatus(msg);
-			} else if ((msg.id & CAN_ID_AMS_SLAVE_LOG_MASK) == CAN_ID_AMS_SLAVE_LOG_BASE) {
-				message = decodeSlaveLog(msg);
-			} else {
-				switch (msg.id) {
-					case CAN_ID_AMS_ERROR:
-						message = decodeError(msg);
-						break;
-					case CAN_ID_AMS_STATUS:
-						message = decodeStatus(msg);
-						break;
-					default:
-						console.warn('unknown frame', msg);
-				}
-			}
-
-			if (message) {
-				emit('message', JSON.stringify(message));
-			}
+			emit('message', JSON.stringify(marshalMessage(msg)));
 		});
 		network.start();
 

src/routes/master-status-display.svelte

@@ -1,21 +1,38 @@
 <script lang="ts">
-	import type { AMSStatus } from '$lib/messages';
+	import { AMSState, type AMSStatus } from '$lib/messages';
 
 	export let status: AMSStatus | undefined;
 </script>
 
+<div class="master-content">
 	{#if status}
-	<h2>Master Status</h2>
-	<div class="status-table">
-		<div>State:</div>
-		<div>{status.state}</div>
-		<div>SDC Closed:</div>
-		<div>{status.sdcClosed}</div>
-		<div>SoC:</div>
-		<div>{status.soc}</div>
-		<div>Min. cell voltage:</div>
-		<div>{status.minCellVolt}</div>
-		<div>Max. cell temperature:</div>
-		<div>{status.maxCellTemp}</div>
+		<h2><b>Master Status</b></h2>
+		<div class="log-collumn">
+			<div>State: {AMSState[status.state]}</div>
+			<div>SDC Closed: {status.sdcClosed}</div>
+			<div>SoC: {status.soc}%</div>
+			<div>Min. cell voltage: {Math.round(status.minCellVolt * 100) / 100}</div>
+			<div>Max. cell temperature: {Math.round(status.maxCellTemp * 100) / 100}</div>
 		</div>
 	{/if}
+</div>
+
+<style>
+	.master-content {
+		display: flex;
+		flex-direction: column;
+		width: 12vw;
+		border: 2px solid black;
+		padding: 2px;
+		margin: 2px;
+	}
+
+	.log-collumn {
+		display: flex;
+		flex-direction: column;
+	}
+
+	h2 {
+		text-align: center;
+	}
+</style>

src/routes/overview.svelte

@@ -0,0 +1,82 @@
+<script lang="ts">
+	import type { ShuntData } from '$lib/client';
+	import { AMSState, type AMSStatus } from '$lib/messages';
+
+	export let amsStatus: AMSStatus | undefined;
+	export let shunt: ShuntData;
+	export let showPopout: boolean = false;
+</script>
+
+<div class="flex flex-col w-[30rem] border-2 border-black p-1 m-1">
+	{#if showPopout}
+		<div class="flex flex-row justify-end mb-2">
+			<a
+				class="text-sm underline hover:no-underline"
+				href="/overview"
+				target="_blank"
+				on:click|preventDefault={() => {
+					window.open('/overview', 'newwindow', 'width=500,height=200,resizable=yes');
+					return false;
+				}}>Pop out</a
+			>
+		</div>
+	{/if}
+	<div class="grid grid-rows-3 gap-3">
+		{#if amsStatus != null}
+			<div class="progress" data-label="{amsStatus.soc}%">
+				<span class="value" style="width:{amsStatus.soc}%;"></span>
+			</div>
+			<div class="grid grid-cols-4 gap-2">
+				<span class="text-center border-r">{shunt.voltage1.toFixed(1)} V</span>
+				<span class="text-center border-r">{shunt.current.toFixed(1)} A</span>
+				<span class="text-center border-r">{amsStatus.maxCellTemp.toFixed(1)}°C</span>
+				<span class="text-center">SDC {amsStatus.sdcClosed ? '✅' : '❌'}</span>
+			</div>
+			<div class="text-center">
+				<button
+					class="w-1/2 bg-green-600 text-white font-bold h-8 rounded-md hover:bg-green-800 disabled:bg-gray-600"
+					disabled={amsStatus.state != AMSState.TS_INACTIVE}
+					on:click={() => {
+						fetch('/start-charging', { method: 'POST' });
+					}}>Start Charging</button
+				>
+			</div>
+		{/if}
+	</div>
+</div>
+
+<style>
+	.overview {
+		display: flex;
+		flex-direction: column;
+		width: 24vw;
+		border: 2px solid black;
+		padding: 2px;
+		margin: 2px;
+	}
+
+	.progress {
+		height: 3em;
+		width: 100%;
+		background-color: white;
+		position: relative;
+		border: 1px solid black;
+	}
+	.progress:before {
+		content: attr(data-label);
+		font-weight: bold;
+		color: darkgray;
+		font-size: 1em;
+		position: absolute;
+		text-align: center;
+		top: 50%;
+		transform: translateY(-50%);
+		left: 0;
+		right: 0;
+	}
+	.progress .value {
+		background-color: green;
+		display: inline-block;
+		height: 100%;
+	}
+</style>

src/routes/overview/+page.svelte

@@ -0,0 +1,10 @@
+<script lang="ts">
+	import Overview from '../overview.svelte';
+	import { amsStatus, shunt } from '$lib/client';
+</script>
+
+<svelte:head>
+	<title>Charging Overview</title>
+</svelte:head>
+
+<Overview amsStatus={$amsStatus} shunt={$shunt} />

src/routes/shunt-status-display.svelte

@@ -0,0 +1,60 @@
+<script lang="ts">
+	import type { ShuntData } from '$lib/client';
+
+	export let data: ShuntData;
+</script>
+
+<div class="shunt-content">
+	<h2><b>Shunt Status</b></h2>
+
+	<div class="log-collumn">
+		<div class="log-entry">
+			<div>Current:</div>
+			<div><b>{data.current.toFixed(1)} A</b></div>
+		</div>
+	</div>
+	<div class="log-collumn">
+		<div class="log-entry">
+			<div>Voltage Accu:</div>
+			<div><b>{data.voltage1.toFixed(2)} V</b></div>
+		</div>
+	</div>
+	<div class="log-collumn">
+		<div class="log-entry">
+			<div>Voltage Vehicle:</div>
+			<div><b>{data.voltage2.toFixed(2)} V</b></div>
+		</div>
+	</div>
+</div>
+
+<style>
+	.shunt-content {
+		display: flex;
+		flex-direction: column;
+		width: 12vw;
+		padding: 2px;
+		margin: 2px;
+		border: 2px solid black;
+		font-size: 14px;
+		margin-top: 10px;
+		background-color: hsl(0, 60%, var(--lightness));
+	}
+
+	.log-entry {
+		display: grid;
+		grid-template-columns: 5fr 3fr;
+		margin: 2px;
+		padding: 2px;
+		background-color: hsl(var(--hue), 80%, 80%);
+	}
+
+	.log-collumn {
+		display: flex;
+		flex-direction: column;
+		background-color: hsl(0, 60%, var(--lightness));
+	}
+
+	h2 {
+		text-align: center;
+	}
+</style>

src/routes/slave-status-display.svelte

@@ -1,40 +1,114 @@
 <script lang="ts">
+	import { onMount } from 'svelte';
+	
 	import type { SlaveStatus } from '$lib/messages';
-	import type { SlaveLogData } from '$lib/slave-log';
+	import { SlaveLogData } from '$lib/slave-log';
 
 	export let id: number;
 	export let status: SlaveStatus;
 	export let logData: SlaveLogData | undefined;
+	
+	let interval;
+	let lastMsgTime: number = 0;
+	let timeDifference: number = 0;
+
+	onMount(() => {
+		interval = setInterval(() => {
+			timeDifference = Date.now()-lastMsgTime;
+		}, 50);
+	});
+	
+	$: totalVoltage = logData?.voltages.slice(0, 15).reduce((acc, x) => acc + x, 0);
+
+	$: {
+		slavePing(logData);
+	}
+
+	function slavePing(logData: SlaveLogData | undefined): void {
+		lastMsgTime = Date.now();
+	}
 </script>
 
-<h2>Slave #{id}</h2>
+<div class="slave-content" style:--lightness={status.error ? '70%' : '100%'}>
+	<h2><b>Slave #{id} Δrx_t: {Math.round(timeDifference / 1000)}s</b></h2>
 
-<div class="status-table">
-	<div>Error</div>
-	<div>{status.error}</div>
-	<div>Min. cell voltage</div>
-	<div>{status.minCellVolt}</div>
-	<div>Max. cell voltage</div>
-	<div>{status.maxCellVolt}</div>
-	<div>Max. temperature</div>
-	<div>{status.maxTemp}</div>
-	<div>SoC</div>
-	<div>{status.soc}</div>
-	<div>Failed temperature sensors</div>
-	<div>{logData?.failedTempSensors ?? 0}</div>
+	<div class="log-collumn" style:--lightness={'' + Math.max(100 - ((timeDifference-200) / 150), 70) + '%'}>
+		<div class="log-entry">
+			<div>Error:</div>
+			<div><b>{status.error}</b></div>
+		</div>
+		<div class="log-entry">
+			<div>Min. cell voltage:</div>
+			<div><b>{Math.round(status.minCellVolt * 1000) / 1000}V</b></div>
+		</div>
+		<div class="log-entry">
+			<div>Max. cell voltage:</div>
+			<div><b>{Math.round(status.maxCellVolt * 1000) / 1000}V</b></div>
+		</div>
+		<div class="log-entry">
+			<div>Max. temperature:</div>
+			<div><b>{Math.round(status.maxTemp * 100) / 100}°</b></div>
+		</div>
+		<div class="log-entry">
+			<div>Total voltage:</div>
+			<div><b>{Math.round(totalVoltage * 100) / 100}V</b></div>
+		</div>
+		<!-- <div>SoC</div>
+		<div>{status.soc}</div> -->
+		<!-- <div>Failed temperature sensors</div>
+		<div>{logData?.failedTempSensors ?? 0}</div> -->
 	</div>
 
 	{#if logData}
-	<details>
-		<div class="status-table">
+		<div class="log-collumn">
 			{#each logData.voltages as volt, i}
-				<div>V_{i}</div>
-				<div>{volt}</div>
+				{#if i < 15}
+					<div class="log-entry" style:--hue={Math.max((volt - 2.5) * 70.5, 0)}>
+						<div>V{i}:</div>
+						<div><b>{Math.round(volt * 1000) / 1000}V</b></div>
+					</div>
+				{/if}
 			{/each}
 			{#each logData.temperatures as temp, i}
-				<div>T_{i}</div>
-				<div>{temp}</div>
+				{#if i > 33 && i < 44}
+					<div class="log-entry" style:--hue={210 - temp * 3.5}>
+						<div>T{i}:</div>
+						<div><b>{temp}°</b></div>
+					</div>
+				{/if}
 			{/each}
 		</div>
-	</details>
 	{/if}
+</div>
+
+<style>
+	.slave-content {
+		display: flex;
+		flex-direction: column;
+		width: 12vw;
+		padding: 2px;
+		margin: 2px;
+		border: 2px solid black;
+		font-size: 14px;
+		margin-top: 10px;
+		background-color: hsl(0, 60%, var(--lightness));
+	}
+
+	.log-entry {
+		display: grid;
+		grid-template-columns: 5fr 3fr;
+		margin: 2px;
+		padding: 2px;
+		background-color: hsl(var(--hue), 80%, 80%);
+	}
+
+	.log-collumn {
+		display: flex;
+		flex-direction: column;
+		background-color: hsl(0, 60%, var(--lightness));
+	}
+
+	h2 {
+		text-align: center;
+	}
+</style>

src/routes/start-charging/+server.ts

@@ -0,0 +1,10 @@
+import { json } from '@sveltejs/kit';
+import * as can from 'socketcan';
+
+export function POST() {
+	const network = can.createRawChannel('can0');
+	network.start();
+	network.send({ id: 0x00b, data: Buffer.from([0x01]), ext: false, rtr: false });
+	network.stop();
+	return json({ success: true }, { status: 201 });
+}

vite.config.ts

@@ -1,6 +1,7 @@
 import { sveltekit } from '@sveltejs/kit/vite';
 import { defineConfig } from 'vite';
+import { nodePolyfills } from 'vite-plugin-node-polyfills';
 
 export default defineConfig({
-	plugins: [sveltekit()]
+	plugins: [sveltekit(), nodePolyfills()]
 });