Voddic LTD · Smart School Security

No Paper.
No Sign-In
Books. Ever Again.

SchoolPass replaces paper gate registers with a PIN-secured digital system. Parents tap, enter PIN, and your ESP32 hub announces the student's arrival or dismissal — school-wide. 100% offline. No internet. No WiFi. Just works.

Get a Demo → See How It Works
📵 Fully offline APK
🔐 PIN-secured per child
📢 ESP32 announcement hub
SchoolPass · Gate Terminal
OFFLINE · SECURE
🔍 Search student name...
👦
Adebayo Michael
JSS 2A
👧
Okonkwo Chidera
JSS 1B
👦
Eze Emmanuel
SSS 3C
Enter Parent / Guardian PIN
1
2
3
4
5
6
7
8
9
⌫
0
✓
❌ The Old Way
📋 Paper register everyone touches
✍️ Slow manual signing in/out
🔍 No way to verify who's picking up
📢 Manual calling across the school
🗂️ No digital record or audit trail
SchoolPass
fixes all of this ✓
Step-by-Step Flow

Secure entry & exit in under 10 seconds.

The entire process — from parent arriving at the gate to the classroom announcement — takes less time than writing a name in a paper book.

🏫
Parent / Guardian Arrives at Gate
Security or the gate attendant opens the SchoolPass tablet app. No internet connection needed — it runs entirely offline on the Android device.
Offline APK · No WiFi
🔍
Security Searches the Student Name
The gate attendant types the student's name or scrolls through the list. Each student's photo, class, and approved guardian list appears instantly from the local database.
Local Database · Instant Search
🔐
Parent or Guardian Enters Their Secret PIN
The parent types their personal PIN — set during registration. Only registered guardians with the correct PIN can sign a student in or out. No PIN match, no access. Wrong PIN attempts are logged.
PIN Secured · Per Guardian
✅
Student Logged IN — Entry Timestamped
The system logs the exact date and time of entry, the guardian's name, and the PIN verified. A full digital audit trail is built automatically with zero manual effort from staff.
Digital Log · Auto Timestamp
📢
ESP32 Hub Announces Arrival School-Wide
The gate terminal sends a signal to the ESP32 announcement hub. Speakers throughout the school broadcast the student's name and class — confirming safe arrival to teachers and staff automatically.
ESP32 Hub · PA Announcement
🚪
Dismissal: Classroom Announcement for Pickup
At closing, the same process runs in reverse. After PIN verification at the gate, the ESP32 hub in the student's specific classroom announces their name to come to the gate — no manual teacher calling needed.
Classroom Speaker · Smart Dismissal
SchoolPass · Live Scenarios
🌅
Morning
🏠
Dismissal
📋
Log
🔍 Okonkwo Chidera...
👧
Okonkwo Chidera
JSS 1B
Guardian PIN Verified ✓
✅
Access Granted · 07:42 AM · IN
Okonkwo Chidera — JSS 1B
📡
ESP32 Main Hub · Broadcast
School Entrance Speakers
"Attention please — Okonkwo Chidera, JSS 1B, has arrived at school. Welcome."
🔍 Adebayo Michael...
👦
Adebayo Michael
JSS 2A
🚪
PIN Verified · 02:15 PM · OUT
Adebayo Michael — JSS 2A
📡
ESP32 Hub · Classroom JSS 2A
In-Classroom Speaker
"Adebayo Michael — your parent is at the gate. Please proceed to the school gate. Thank you."
Today's Movement Log
07:38 Eze Emmanuel · SSS 3C IN
07:42 Okonkwo Chidera · JSS 1B IN
07:55 Adebayo Michael · JSS 2A IN
09:12 Unknown PIN · 3 attempts ⚠ ALERT
14:15 Adebayo Michael · JSS 2A OUT
Core Features

Everything your school gate needs. Nothing more.

Built lean, built for schools that need reliability, security, and simplicity — not complexity.

📵
100% Offline — No Internet Ever Needed
The Android APK runs entirely from the device's local storage. No WiFi, no data, no cloud dependency. It works on the cheapest Android tablet you have in the school.
🔐
PIN-Secured Per Guardian
Every registered parent or guardian gets a unique 4-digit PIN. Only the PIN holder can sign their child in or out. Unverified adults cannot remove a student from school premises.
📢
ESP32 PA Announcement Hub
The gate tablet communicates with the ESP32 hub via Bluetooth or local RF — no internet required. Speakers at the entrance and in classrooms announce arrivals and dismissals automatically.
🏫
Classroom-Specific Dismissal Calls
When a parent checks out a student at closing, the ESP32 unit in that student's specific classroom announces their name — so only the right child is called, no disruption to other classes.
📋
Automatic Digital Attendance Log
Every entry and exit is timestamped, tied to a guardian name, and stored locally. Exportable daily, weekly, or termly reports. No more lost paper registers or illegible handwriting.
⚠️
Wrong PIN Alert & Lockout
Three consecutive wrong PIN attempts triggers an alert and temporarily locks the profile. Security is notified immediately — preventing brute-force or impersonation attempts at the gate.
Why SchoolPass

Paper registers are a security risk. Not just an inconvenience.

Anyone can write any name in a paper book. Anyone can pretend to be a guardian. SchoolPass makes unauthorised pickup impossible.

Old Method
Paper Sign-In Book
✕ Anyone can sign any name — no verification
✕ Slow — queues at gate during rush hours
✕ Illegible handwriting, lost books
✕ No record of who actually collected the child
✕ Manual shouting / PA calling across school
✕ No way to detect unauthorised pickup attempts
✕ Can't prove what time a child left school
vs
✓ SchoolPass
Digital SchoolPass
✓ PIN verification — only registered guardians access
✓ Under 10 seconds per student check-in
✓ Clean digital record, never lost or damaged
✓ Full audit trail — guardian name, time, PIN used
✓ Automated ESP32 PA announcement system
✓ Wrong PIN attempts logged and alerted
✓ Timestamped proof of every movement
Offline-First Architecture

No internet. No problem. Ever.

We built SchoolPass from the ground up for schools where internet is unreliable, expensive, or simply unavailable. The system never needs a connection to function.

📱
Android APK — Installs Once, Works Forever
Install the APK on any Android tablet or phone at the gate. All student data, guardian PINs, and logs are stored locally. No app store, no updates required unless you want new features.
📡
ESP32 Hub Connects via Bluetooth / RF
The gate tablet communicates with the ESP32 announcement hub using Bluetooth or a local RF signal — completely bypassing the internet. If one hub is in the corridor and one is in each classroom, they all receive the signal.
🔋
Works Through Power Interruptions
The Android device runs on battery. The ESP32 hub is backed by a small rechargeable cell. NEPA outages don't stop the school gate from operating securely.
💾
Data Export When Needed
When you want reports, connect to a local hotspot and export the term's attendance data as a spreadsheet or PDF. No cloud needed — you control your data entirely.
📶
WiFi
🌐
Internet
☁️
Cloud
None Required.
SchoolPass runs 100% on-device.
Your school data never leaves your premises.
🤖
Android APK · Offline
Installs on any Android 6.0+ device. Works on tablets or phones. No Play Store needed. Single installation, lifetime use.
System Status
Gate Terminal ONLINE · LOCAL
ESP32 Hub (Main) CONNECTED · BT
Classroom Hubs (8) ALL ACTIVE
Internet Connection NOT REQUIRED
What's In The Kit

Two components. Complete system.

SchoolPass ships as a complete kit — the Android gate app and the ESP32 announcement hub. Everything you need, nothing you don't.

📱
Gate Terminal App
Android APK · Offline
The SchoolPass Android application installed at the school gate on a tablet or phone. Runs entirely offline. Manages the student database, guardian PINs, search, check-in, check-out, and movement logs.
PlatformAndroid 6.0+
ConnectivityOffline / Bluetooth
StorageLocal SQLite DB
Internet RequiredNone
Students per schoolUnlimited
Check-in time< 10 seconds
📡
ESP32 Announcement Hub
Hardware · PA Speaker System
A compact ESP32-powered device connected to your school's PA speakers or dedicated speakers. Receives signals from the gate terminal and broadcasts voice announcements — at the gate and in individual classrooms.
ControllerESP32 Module
Signal methodBluetooth / Local RF
Speaker outputPA or standalone
PowerMains + battery backup
Hubs per school1 per classroom
Announcement delay< 2 seconds
Get Started

Request a Live School Demo

Tell us about your school and we'll bring SchoolPass to your campus for a live demonstration — showing the full check-in, announcement, and dismissal flow in your actual gate environment.

Live gate demo — we set up the tablet and ESP32 hub at your actual school gate and run a full test.
Custom school setup — we configure it with your student list, class structure, and number of classrooms needing hubs.
No commitment required — the demonstration is completely free with no obligation to purchase.
Response in 24 hours — our team will confirm your demo time and prepare the setup for your school.
Direct Contact
📞 +234 812 763 3556
📱 WhatsApp us
📧 [email protected]
🌐 voddic.com.ng

School Demo Request

Takes under 2 minutes. We'll handle everything else.

School Information
Student Population
Under 100
100–300
300–600
600–1,000
1,000+
Classrooms Needing Hubs
1–5
6–12
13–20
20+
Contact Person
Demo Preference
On-site at school
Video call
Visit your office
This term
Next term
Next year
Just exploring
Additional Information

No commitment required. We'll respond within 24 hours to confirm your demo date.

🏫
Demo Requested!

Thank you. Our team at Voddic LTD will contact you within 24 hours to schedule your SchoolPass demo.

For a faster response, WhatsApp us at +234 812 763 3556

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