Driver display
A clear view of passenger activity throughout the journey.
- Live passenger total
- Separate entered and exited counts
- Driver-facing interface
Last 1 | School bus safety system, Bahrain
Ensuring no passenger is ever left behind.
A Bahrain-developed smart bus safety system that counts every entry and exit, and alerts the driver if anyone remains onboard.
See Last 1 in 30 seconds.
Manual checks fail. Every child is at risk.
Children are at risk of being accidentally left inside buses due to reliance on manual checks that are prone to human error. Drivers may close vehicles without confirmed passenger clearance, and current systems lack real-time verification.
A sleeping or quiet child may not be visible from the driver's seat.
Reminder alarms still depend on a person completing the check correctly.
Paper registers and app check-ins do not confirm physical presence inside the vehicle.
A single missed check can create severe safety, legal, and reputational consequences.
Safety should not depend only on memory.
The Last 1 principle. The system verifies that every recorded entry is matched by an exit, and clearly alerts the driver when the final count is not zero.
How it works
Four automated stages replace an informal end-of-route check.
DetectSensor detection
Door-mounted Time-of-Flight sensors identify movement and determine whether a passenger is entering or exiting.
ProcessIntelligent processing
The onboard ESP32 controller reconciles entries and exits continuously throughout the journey.
DisplayLive monitoring
A driver-facing screen shows the live passenger total and the system status: SAFE or ALERT.
Verify & alertAutomated safety alerts
At route completion, the system checks for zero passengers. Any mismatch activates audible and visual alerts and can interface with a closure interlock, subject to vehicle approval and pilot configuration.
Every entry matched by an exit.
Entry
The passenger passes through the door scanner. The entry is detected and recorded, and the display increments the passenger count instantly while the system keeps the onboard total.
Exit
The door-mounted scanner detects each passenger exiting. The display automatically decreases the count, and the system continuously compares total entries and exits.
Alert
When the driver attempts to close the bus, a final count verification runs. If the count is not zero, the system blocks closure and a loud audible alarm warns that passengers remain inside.
Two compact parts. One clear answer for the driver.
Sensor enclosure
A compact enclosure for the entry and exit sensing unit, with directional entry / exit symbols and a protective housing concept. Mounting is subject to vehicle assessment.
Try the logic
Board and drop off passengers, then end the route. Anything other than zero raises an alert.
Passenger counter
Inside42
Entered58
Exited16
SAFE: counting
Local core operation
The core safety function does not require persistent internet connectivity.
Privacy-conscious
The current design counts anonymous movements rather than capturing names or images.
Retrofit focus
Designed to integrate with existing fleets, subject to vehicle-specific assessment and approvals.
Product visualisations for presentation purposes. Final hardware, interface and mounting details may change following pilot validation.
ESP32 Dev Module3 x VL53L0X ToF SensorsMagnetic Lock 12VRelay Module 5VBuck Converter 12V to 5VFuse 2ATVS Protection DiodeFiltering capacitors 470uF, 220uF, 100nF
A structured improvement to passenger-safety assurance.
Stronger child safeguarding
Adds an automated layer of protection at the exact point where manual checks can fail.
Clear accountability
Creates a consistent and repeatable end-of-route verification process for drivers and fleet supervisors.
Simple daily operation
No cards, tags, phones, or passenger actions are required for core counting.
Low infrastructure burden
Core safety functions operate locally and do not depend on continuous internet connectivity.
Fleet-wide visibility
Optional reporting and review services can help management track incidents, maintenance, and compliance actions.
Reputation and governance
Demonstrates a proactive commitment to transport safety, risk reduction, and stakeholder confidence.
What makes Last 1 different
- Counts physical passenger movement rather than relying on cards, tags, apps, or manual attendance records.
- Operates locally without requiring continuous internet connectivity for the core safety function.
- Provides a live passenger count and clear SAFE / ALERT status to the driver.
- Performs a final zero-count verification before route closure and activates an audible and visual warning when there is a mismatch.
- Designed as a compact retrofit solution that can be installed on existing bus doors with minimal disruption.
Designed for high-responsibility transport.
School transportation
- Prevents children from being accidentally left behind
- Ideal for daily school routes and field trips
- Supports compliance with child safety regulations
- Reduces liability for schools and transport operators
Daycare and special needs
- Critical protection for vulnerable passengers
- Supports passengers who may be unable to alert the driver independently
- Useful for elderly transport, special-needs schools, and care centers
- Added reassurance to parents and caregivers
Public transport and shuttles
- Ensures complete passenger clearance at route terminals
- Enhances safety in off-peak and low-visibility conditions
- Improves accountability across staff, public, and contracted fleets
- Suitable for city buses and shuttle services
Indicative service packages
Installation included. Support that matches your fleet.
Basic
1-5 buses10 BHD / month*
- Installation
- Defect replacement support
- WhatsApp support within 48 hours
- One orientation session
Standard
6-15 buses15 BHD / month*
- Installation
- Annual preventive maintenance
- Monthly report
- 24-hour response target
- Two training sessions per year
Premium
16+ buses20 BHD / month*
- Installation
- Semi-annual maintenance
- Priority response
- Dedicated contact
- Quarterly fleet-safety review
*Indicative pricing from the current feasibility model. Final pricing, taxes, installation complexity, replacement terms, contract length, and any custom reporting requirements will be confirmed in a formal proposal.
- Recommended minimum agreement: 12 months, subject to final negotiation.
- Installation is included within the proposed subscription structure, subject to standard vehicle conditions.
- A pilot may be priced separately or credited toward a longer-term agreement, depending on scope.
A complete service model
Smart Bus Safety Device
Passenger entry/exit sensing, live count display, Safe/Alert status, and end-of-route warning logic.
Professional Installation
On-site fitting by a qualified electronics/IoT technician, subject to vehicle inspection and agreed installation plan.
Driver & Supervisor Training
Practical orientation on system operation, alert response, daily checks, and escalation procedures.
Preventive Maintenance
Scheduled inspection, cleaning, testing, firmware review, and repair support according to the selected service tier.
Management Reporting
Optional monthly summaries, incident logs, maintenance status, and fleet-safety review meetings.
Pilot Evaluation
Baseline assessment, agreed success criteria, monitored trial period, and end-of-pilot recommendations.
Pilot programme
A controlled pilot, then scale.
A pilot lets both parties evaluate the technology, operating process, and service requirements before broader deployment.
Discovery
Confirm fleet size, bus types, operating routes, safeguarding requirements, and technical constraints.
Site assessment
Inspect selected buses and agree sensor placement, power connection, driver display location, and installation method.
Pilot installation
Install the system on an agreed number of buses and conduct driver and supervisor training.
Monitored operation
Operate during an agreed trial period, record alerts and user feedback, and complete scheduled technical checks.
Review and scale
Evaluate agreed success measures and prepare a recommendation for refinement, extension, or fleet-wide deployment.
Request a pilot for your fleet.
Tell us about your school or transport operation. Mohamed will reply to agree a discovery call, a site assessment of selected buses, and the scope of a pilot installation.
- Installed on an agreed number of buses
- Driver and supervisor training included
- Evaluated together before broader deployment
Roadmap
Current
Working prototype with ESP32 controller, Time-of-Flight sensors, live display, audible alert, and enclosure iterations.
Pilot stage
On-vehicle validation, installation refinement, heat/vibration testing, driver workflow testing, and failure-mode assessment.
Product hardening
Vehicle-grade components, improved enclosure, wiring protection, documented quality checks, and design-for-manufacture.
Future options
Fleet dashboard, alert logs, GPS integration, mobile notifications, and other enhancements following successful core-product validation.
A Bahrain-developed safety innovation.
Last 1 is a smart bus safety technology venture founded by Mohamed Sharif in the Kingdom of Bahrain. The company has developed a working prototype that automatically counts passengers as they enter and exit a bus, continuously reconciles the total, and triggers a safety alert if anyone remains onboard at route completion.
Mohamed Sharif
Founder and Inventor
Mohamed Sharif conceived, designed, built, and programmed the Last 1 system in Bahrain. He leads product design, firmware development, sourcing, prototyping, business development, and customer relationships.
- Purpose
- To help transport operators protect every passenger through automated, verifiable end-of-route clearance.
- Vision
- To make zero-passenger verification a standard safety requirement across Bahrain and the wider GCC.
- Approach
- Practical retrofit hardware, simple operation, local installation support, and measurable safety outcomes.
Founder-led technical development supported by specialist advisory input.
- Salman AlMulaSoftware Development
- Haroon AlMansoorTechnical Advisory
- Hussain AmeerFinancial Advisory
Questions, answered.
How does Last 1 know if someone is still on the bus?
Door-mounted Time-of-Flight sensors detect each passenger entering or exiting. The onboard controller keeps a running balance, and at route completion it checks that the count is zero. If it is not, the system triggers a loud audible alarm and a visual alert for the driver.
Do passengers need cards, tags or a phone app?
No. Last 1 counts physical passenger movement. No cards, tags, phones, or passenger actions are required for core counting.
Does it need an internet connection?
No. The core safety function operates locally and does not require persistent internet connectivity.
Does it record names or images of children?
The current design counts anonymous movements rather than capturing names or images.
Can it be fitted to our existing buses?
It is designed as a compact retrofit for existing bus doors with minimal disruption. Sensor placement, power connection and mounting are agreed after a vehicle-specific site assessment and approvals.
What does it cost?
Indicative packages are 10 BHD (Basic, 1-5 buses), 15 BHD (Standard, 6-15 buses) and 20 BHD (Premium, 16+ buses) per month, with installation included. Final pricing, taxes, contract length and reporting requirements are confirmed in a formal proposal.
Is the product available today?
Last 1 has a working prototype that demonstrates the core sensing, processing, display and alert functions. The next stage is a controlled pilot with a school, transport operator or organisation, followed by product hardening.
How do we start?
Book a 30-minute collaboration meeting with your transport, safeguarding, and operations representatives. We will present the working prototype, discuss your fleet requirements, and agree whether a pilot is suitable.
Proposed next step
Book a 30-minute collaboration meeting.
Bring your transport, safeguarding, and operations representatives. We will present the working prototype, discuss your fleet requirements, and agree whether a pilot is suitable.
Send a message
Feedback, a question, or an idea?
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