mirror of
https://github.com/usatiuk/cardboy.git
synced 2025-10-28 23:27:49 +01:00
time sync
This commit is contained in:
62
Firmware/cardboy-companion/.gitignore
vendored
Normal file
62
Firmware/cardboy-companion/.gitignore
vendored
Normal file
@@ -0,0 +1,62 @@
|
||||
# Xcode
|
||||
#
|
||||
# gitignore contributors: remember to update Global/Xcode.gitignore, Objective-C.gitignore & Swift.gitignore
|
||||
|
||||
## User settings
|
||||
xcuserdata/
|
||||
|
||||
## Obj-C/Swift specific
|
||||
*.hmap
|
||||
|
||||
## App packaging
|
||||
*.ipa
|
||||
*.dSYM.zip
|
||||
*.dSYM
|
||||
|
||||
## Playgrounds
|
||||
timeline.xctimeline
|
||||
playground.xcworkspace
|
||||
|
||||
# Swift Package Manager
|
||||
#
|
||||
# Add this line if you want to avoid checking in source code from Swift Package Manager dependencies.
|
||||
# Packages/
|
||||
# Package.pins
|
||||
# Package.resolved
|
||||
# *.xcodeproj
|
||||
#
|
||||
# Xcode automatically generates this directory with a .xcworkspacedata file and xcuserdata
|
||||
# hence it is not needed unless you have added a package configuration file to your project
|
||||
# .swiftpm
|
||||
|
||||
.build/
|
||||
|
||||
# CocoaPods
|
||||
#
|
||||
# We recommend against adding the Pods directory to your .gitignore. However
|
||||
# you should judge for yourself, the pros and cons are mentioned at:
|
||||
# https://guides.cocoapods.org/using/using-cocoapods.html#should-i-check-the-pods-directory-into-source-control
|
||||
#
|
||||
# Pods/
|
||||
#
|
||||
# Add this line if you want to avoid checking in source code from the Xcode workspace
|
||||
# *.xcworkspace
|
||||
|
||||
# Carthage
|
||||
#
|
||||
# Add this line if you want to avoid checking in source code from Carthage dependencies.
|
||||
# Carthage/Checkouts
|
||||
|
||||
Carthage/Build/
|
||||
|
||||
# fastlane
|
||||
#
|
||||
# It is recommended to not store the screenshots in the git repo.
|
||||
# Instead, use fastlane to re-generate the screenshots whenever they are needed.
|
||||
# For more information about the recommended setup visit:
|
||||
# https://docs.fastlane.tools/best-practices/source-control/#source-control
|
||||
|
||||
fastlane/report.xml
|
||||
fastlane/Preview.html
|
||||
fastlane/screenshots/**/*.png
|
||||
fastlane/test_output
|
||||
29
Firmware/cardboy-companion/README.md
Normal file
29
Firmware/cardboy-companion/README.md
Normal file
@@ -0,0 +1,29 @@
|
||||
# Cardboy Time Sync Companion
|
||||
|
||||
This SwiftUI app connects to the Cardboy device over Bluetooth Low Energy and updates its wall clock using the custom time sync service exposed by the firmware. The sources live inside the existing `cardboy-companion/cardboy-companion.xcodeproj` so you can open and run them directly in Xcode.
|
||||
|
||||
## Requirements
|
||||
|
||||
- Xcode 15 or newer
|
||||
- iOS 16 or newer deployment target (can be lowered to 15 with minor API tweaks)
|
||||
- A Cardboy running firmware that includes the BLE time sync service
|
||||
|
||||
## How it works
|
||||
|
||||
1. The app scans for peripherals exposing service UUID `00000001-CA7B-4EFD-B5A6-10C3F4D3F230`.
|
||||
2. Once connected it discovers characteristic `00000002-CA7B-4EFD-B5A6-10C3F4D3F231`.
|
||||
3. Tapping **Sync Now** writes a 12‑byte payload containing:
|
||||
- 8 bytes Unix epoch seconds (little endian)
|
||||
- 2 bytes time zone offset in minutes from UTC (little endian)
|
||||
- 1 byte DST flag (`1` if daylight saving is active)
|
||||
- 1 reserved byte (`0`)
|
||||
4. The firmware applies the timestamp with `settimeofday()` and updates the TZ environment variable so the clock app renders local time.
|
||||
|
||||
## Usage
|
||||
|
||||
1. Open `cardboy-companion/cardboy-companion.xcodeproj` in Xcode.
|
||||
2. Enable the `CoreBluetooth` capability for the `cardboy-companion` target (Signing & Capabilities tab).
|
||||
3. Build & run on a real device (BLE is not available in the simulator).
|
||||
4. Allow Bluetooth permissions when prompted, then tap **Sync Now**.
|
||||
|
||||
Optionally bundle this code into your existing app—`TimeSyncManager` is self‑contained and can be reused.
|
||||
@@ -0,0 +1,339 @@
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||||
SWIFT_VERSION = 5.0;
|
||||
TARGETED_DEVICE_FAMILY = "1,2";
|
||||
};
|
||||
name = Release;
|
||||
};
|
||||
/* End XCBuildConfiguration section */
|
||||
|
||||
/* Begin XCConfigurationList section */
|
||||
ECAB9A7E2EA550D9004BA9DE /* Build configuration list for PBXProject "cardboy-companion" */ = {
|
||||
isa = XCConfigurationList;
|
||||
buildConfigurations = (
|
||||
ECAB9A8C2EA550DB004BA9DE /* Debug */,
|
||||
ECAB9A8D2EA550DB004BA9DE /* Release */,
|
||||
);
|
||||
defaultConfigurationIsVisible = 0;
|
||||
defaultConfigurationName = Release;
|
||||
};
|
||||
ECAB9A8E2EA550DB004BA9DE /* Build configuration list for PBXNativeTarget "cardboy-companion" */ = {
|
||||
isa = XCConfigurationList;
|
||||
buildConfigurations = (
|
||||
ECAB9A8F2EA550DB004BA9DE /* Debug */,
|
||||
ECAB9A902EA550DB004BA9DE /* Release */,
|
||||
);
|
||||
defaultConfigurationIsVisible = 0;
|
||||
defaultConfigurationName = Release;
|
||||
};
|
||||
/* End XCConfigurationList section */
|
||||
};
|
||||
rootObject = ECAB9A7B2EA550D9004BA9DE /* Project object */;
|
||||
}
|
||||
@@ -0,0 +1,7 @@
|
||||
<?xml version="1.0" encoding="UTF-8"?>
|
||||
<Workspace
|
||||
version = "1.0">
|
||||
<FileRef
|
||||
location = "self:">
|
||||
</FileRef>
|
||||
</Workspace>
|
||||
@@ -0,0 +1,11 @@
|
||||
{
|
||||
"colors" : [
|
||||
{
|
||||
"idiom" : "universal"
|
||||
}
|
||||
],
|
||||
"info" : {
|
||||
"author" : "xcode",
|
||||
"version" : 1
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,35 @@
|
||||
{
|
||||
"images" : [
|
||||
{
|
||||
"idiom" : "universal",
|
||||
"platform" : "ios",
|
||||
"size" : "1024x1024"
|
||||
},
|
||||
{
|
||||
"appearances" : [
|
||||
{
|
||||
"appearance" : "luminosity",
|
||||
"value" : "dark"
|
||||
}
|
||||
],
|
||||
"idiom" : "universal",
|
||||
"platform" : "ios",
|
||||
"size" : "1024x1024"
|
||||
},
|
||||
{
|
||||
"appearances" : [
|
||||
{
|
||||
"appearance" : "luminosity",
|
||||
"value" : "tinted"
|
||||
}
|
||||
],
|
||||
"idiom" : "universal",
|
||||
"platform" : "ios",
|
||||
"size" : "1024x1024"
|
||||
}
|
||||
],
|
||||
"info" : {
|
||||
"author" : "xcode",
|
||||
"version" : 1
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,6 @@
|
||||
{
|
||||
"info" : {
|
||||
"author" : "xcode",
|
||||
"version" : 1
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,58 @@
|
||||
import SwiftUI
|
||||
|
||||
struct ContentView: View {
|
||||
@EnvironmentObject private var manager: TimeSyncManager
|
||||
|
||||
private var formattedLastSync: String {
|
||||
guard let date = manager.lastSyncDate else { return "Never" }
|
||||
let formatter = DateFormatter()
|
||||
formatter.dateStyle = .medium
|
||||
formatter.timeStyle = .medium
|
||||
return formatter.string(from: date)
|
||||
}
|
||||
|
||||
var body: some View {
|
||||
VStack(spacing: 24) {
|
||||
Text("Cardboy Clock Sync")
|
||||
.font(.title.bold())
|
||||
|
||||
VStack(spacing: 12) {
|
||||
Text("State: \(manager.connectionState.rawValue)")
|
||||
.font(.headline)
|
||||
|
||||
Text(manager.statusMessage)
|
||||
.multilineTextAlignment(.center)
|
||||
.foregroundColor(.secondary)
|
||||
|
||||
HStack(spacing: 16) {
|
||||
Button(action: manager.sendCurrentTime) {
|
||||
Label("Sync Now", systemImage: "clock.arrow.2.circlepath")
|
||||
}
|
||||
.buttonStyle(.borderedProminent)
|
||||
.disabled(manager.connectionState != .ready)
|
||||
|
||||
Button(action: manager.forceRescan) {
|
||||
Label("Rescan", systemImage: "dot.radiowaves.left.and.right")
|
||||
}
|
||||
.buttonStyle(.bordered)
|
||||
}
|
||||
}
|
||||
|
||||
VStack(spacing: 8) {
|
||||
Text("Last Sync:")
|
||||
.font(.caption)
|
||||
.foregroundColor(.secondary)
|
||||
Text(formattedLastSync)
|
||||
.font(.body.monospaced())
|
||||
}
|
||||
|
||||
Spacer()
|
||||
}
|
||||
.padding()
|
||||
}
|
||||
}
|
||||
|
||||
#Preview {
|
||||
ContentView()
|
||||
.environmentObject(TimeSyncManager())
|
||||
}
|
||||
@@ -0,0 +1,192 @@
|
||||
import Combine
|
||||
import CoreBluetooth
|
||||
import Foundation
|
||||
|
||||
final class TimeSyncManager: NSObject, ObservableObject {
|
||||
enum ConnectionState: String {
|
||||
case idle = "Idle"
|
||||
case scanning = "Scanning"
|
||||
case connecting = "Connecting"
|
||||
case discovering = "Discovering Services"
|
||||
case ready = "Ready"
|
||||
case failed = "Failed"
|
||||
}
|
||||
|
||||
@Published private(set) var connectionState: ConnectionState = .idle
|
||||
@Published private(set) var statusMessage: String = "Waiting for Bluetooth…"
|
||||
@Published private(set) var lastSyncDate: Date?
|
||||
|
||||
private let serviceUUID = CBUUID(string: "00000001-CA7B-4EFD-B5A6-10C3F4D3F230")
|
||||
private let characteristicUUID = CBUUID(string: "00000002-CA7B-4EFD-B5A6-10C3F4D3F231")
|
||||
|
||||
private var central: CBCentralManager!
|
||||
private var targetPeripheral: CBPeripheral?
|
||||
private var timeCharacteristic: CBCharacteristic?
|
||||
|
||||
private var retryTimer: Timer?
|
||||
|
||||
override init() {
|
||||
super.init()
|
||||
central = CBCentralManager(delegate: self, queue: nil)
|
||||
}
|
||||
|
||||
func forceRescan() {
|
||||
statusMessage = "Restarting scan…"
|
||||
connectionState = .scanning
|
||||
if central.state == .poweredOn {
|
||||
central.stopScan()
|
||||
targetPeripheral = nil
|
||||
timeCharacteristic = nil
|
||||
central.scanForPeripherals(withServices: [serviceUUID], options: [
|
||||
CBCentralManagerScanOptionAllowDuplicatesKey: false
|
||||
])
|
||||
}
|
||||
}
|
||||
|
||||
func sendCurrentTime() {
|
||||
guard let peripheral = targetPeripheral,
|
||||
let characteristic = timeCharacteristic else {
|
||||
statusMessage = "Device is not ready."
|
||||
return
|
||||
}
|
||||
|
||||
let now = Date()
|
||||
let epochSeconds = UInt64(now.timeIntervalSince1970.rounded())
|
||||
let timezoneOffsetMinutes = Int16(TimeZone.current.secondsFromGMT(for: now) / 60)
|
||||
let isDst = TimeZone.current.isDaylightSavingTime(for: now) ? UInt8(1) : UInt8(0)
|
||||
|
||||
var payload = Data()
|
||||
|
||||
var epochLe = epochSeconds.littleEndian
|
||||
payload.append(UnsafeBufferPointer(start: &epochLe, count: 1))
|
||||
|
||||
var offsetLe = timezoneOffsetMinutes.littleEndian
|
||||
payload.append(UnsafeBufferPointer(start: &offsetLe, count: 1))
|
||||
|
||||
payload.append(isDst)
|
||||
payload.append(UInt8(0)) // Reserved byte
|
||||
|
||||
connectionState = .ready
|
||||
statusMessage = "Sending current time…"
|
||||
peripheral.writeValue(payload, for: characteristic, type: .withResponse)
|
||||
}
|
||||
}
|
||||
|
||||
extension TimeSyncManager: CBCentralManagerDelegate {
|
||||
func centralManagerDidUpdateState(_ central: CBCentralManager) {
|
||||
switch central.state {
|
||||
case .unknown, .resetting:
|
||||
connectionState = .idle
|
||||
statusMessage = "Bluetooth is resetting…"
|
||||
case .unsupported:
|
||||
connectionState = .failed
|
||||
statusMessage = "Bluetooth Low Energy is not supported on this device."
|
||||
case .unauthorized:
|
||||
connectionState = .failed
|
||||
statusMessage = "Bluetooth permissions are missing."
|
||||
case .poweredOff:
|
||||
connectionState = .idle
|
||||
statusMessage = "Turn on Bluetooth to continue."
|
||||
case .poweredOn:
|
||||
connectionState = .scanning
|
||||
statusMessage = "Scanning for Cardboy…"
|
||||
central.scanForPeripherals(withServices: [serviceUUID], options: [
|
||||
CBCentralManagerScanOptionAllowDuplicatesKey: false
|
||||
])
|
||||
@unknown default:
|
||||
connectionState = .failed
|
||||
statusMessage = "Unknown Bluetooth state."
|
||||
}
|
||||
}
|
||||
|
||||
func centralManager(_ central: CBCentralManager, didDiscover peripheral: CBPeripheral, advertisementData: [String: Any],
|
||||
rssi RSSI: NSNumber) {
|
||||
statusMessage = "Found \(peripheral.name ?? "device"), connecting…"
|
||||
connectionState = .connecting
|
||||
targetPeripheral = peripheral
|
||||
peripheral.delegate = self
|
||||
central.stopScan()
|
||||
central.connect(peripheral, options: nil)
|
||||
}
|
||||
|
||||
func centralManager(_ central: CBCentralManager, didConnect peripheral: CBPeripheral) {
|
||||
statusMessage = "Connected. Discovering services…"
|
||||
connectionState = .discovering
|
||||
peripheral.discoverServices([serviceUUID])
|
||||
}
|
||||
|
||||
func centralManager(_ central: CBCentralManager, didFailToConnect peripheral: CBPeripheral, error: Error?) {
|
||||
statusMessage = "Failed to connect. \(error?.localizedDescription ?? "")"
|
||||
connectionState = .failed
|
||||
scheduleRetry()
|
||||
}
|
||||
|
||||
func centralManager(_ central: CBCentralManager, didDisconnectPeripheral peripheral: CBPeripheral, error: Error?) {
|
||||
statusMessage = "Disconnected. \(error?.localizedDescription ?? "")"
|
||||
connectionState = .idle
|
||||
scheduleRetry()
|
||||
}
|
||||
|
||||
private func scheduleRetry() {
|
||||
retryTimer?.invalidate()
|
||||
retryTimer = Timer.scheduledTimer(withTimeInterval: 2.5, repeats: false) { [weak self] _ in
|
||||
self?.forceRescan()
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
extension TimeSyncManager: CBPeripheralDelegate {
|
||||
func peripheral(_ peripheral: CBPeripheral, didDiscoverServices error: Error?) {
|
||||
if let error {
|
||||
statusMessage = "Service discovery failed: \(error.localizedDescription)"
|
||||
connectionState = .failed
|
||||
scheduleRetry()
|
||||
return
|
||||
}
|
||||
|
||||
guard let services = peripheral.services else {
|
||||
statusMessage = "No services found on device."
|
||||
connectionState = .failed
|
||||
scheduleRetry()
|
||||
return
|
||||
}
|
||||
|
||||
for service in services where service.uuid == serviceUUID {
|
||||
peripheral.discoverCharacteristics([characteristicUUID], for: service)
|
||||
}
|
||||
}
|
||||
|
||||
func peripheral(_ peripheral: CBPeripheral, didDiscoverCharacteristicsFor service: CBService, error: Error?) {
|
||||
if let error {
|
||||
statusMessage = "Characteristic discovery failed: \(error.localizedDescription)"
|
||||
connectionState = .failed
|
||||
scheduleRetry()
|
||||
return
|
||||
}
|
||||
|
||||
guard let characteristics = service.characteristics,
|
||||
let targetCharacteristic = characteristics.first(where: { $0.uuid == characteristicUUID }) else {
|
||||
statusMessage = "Time sync characteristic missing."
|
||||
connectionState = .failed
|
||||
scheduleRetry()
|
||||
return
|
||||
}
|
||||
|
||||
timeCharacteristic = targetCharacteristic
|
||||
connectionState = .ready
|
||||
statusMessage = "Ready to sync time."
|
||||
sendCurrentTime()
|
||||
}
|
||||
|
||||
func peripheral(_ peripheral: CBPeripheral, didWriteValueFor characteristic: CBCharacteristic, error: Error?) {
|
||||
if let error {
|
||||
statusMessage = "Write failed: \(error.localizedDescription)"
|
||||
connectionState = .failed
|
||||
return
|
||||
}
|
||||
|
||||
lastSyncDate = Date()
|
||||
statusMessage = "Time synced at \(DateFormatter.localizedString(from: lastSyncDate!, dateStyle: .none, timeStyle: .medium))."
|
||||
connectionState = .ready
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,13 @@
|
||||
import SwiftUI
|
||||
|
||||
@main
|
||||
struct cardboy_companionApp: App {
|
||||
@StateObject private var manager = TimeSyncManager()
|
||||
|
||||
var body: some Scene {
|
||||
WindowGroup {
|
||||
ContentView()
|
||||
.environmentObject(manager)
|
||||
}
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user