Fleet Telematics · San Luis

Real-time OBD-II diagnostics
for municipal fleets.

Plug in, drive, see everything. Fuel trim, boost, RPM, DTCs, monitor status — pushed to the cloud the moment the vehicle returns to depot WiFi. No cellular bills, no proprietary black boxes.

Stack VLinker · Pi Zero 2 W
Validated on Hyundai i30 1.5 T-GDI
Status Live capture

Captured from a running engine.

This is a live OBD-II snapshot from a Hyundai i30 1.5 T-GDI, pulled via a VLinker ELM327 v2.2 over Bluetooth SPP. 83 PIDs, one engine idle, no synthetic data.

Vehicle

Identification
VIN
TMAH2H1D8SJ035609
Make / Model
Hyundai i30 1.5 T-GDI
Calibration ID
VPD24EET5F0006
OBD Standard
EOBD (Europe)
ELM327
v2.2
Run time
915 s
DTCs
none
MIL
off
Distance since clear
13,745 km
Warm-ups since clear
255
Live PIDs · idle Live
RPM695.5 rpm
Vehicle speed0.0 km/h
Engine load15.7 %
MAP (boost)37 kPa
Barometric pressure98 kPa
Intake air temp38 °C
Ambient air temp25 °C
Throttle position13.3 %
LTFT (long-term fuel trim)+3.91 %
STFT (short-term fuel trim)+2.34 %
Timing advance20.0 °
Fuel rail pressure (DI)13,860 kPa
Fuel rate0.65 l/h
MAF2.25 g/s
Catalyst B1S1 temp434.9 °C
O2 B1S2 voltage0.29 V
Module voltage13.78 V
Fuel statusClosed loop
Monitor — Catalyst B1PASSED
Monitor — Misfire (cyl 1-4)PASSED
Monitor — O2 sensorsPASSED
Monitor — VVTPASSED

Off-the-shelf parts, production-grade output.

No custom silicon. The car already speaks CAN; the VLinker translates to ELM327 AT commands; the Pi logs to disk and uploads when in range. Total BOM under $50 per vehicle.

Vehicle
OBD-II port
CAN 500 kbps
pins 6 / 14
Adapter
VLinker BT
ELM327 v2.2
Bluetooth SPP
Compute
Pi Zero 2 W
Python 3
microSD log
Cloud
Depot WiFi
HTTP push
JSON / MQTT

What you actually get.

$50/vehicle
Total BOM cost
$0/month
Cellular data fees
83PIDs
Captured per vehicle
2Hz
Sample rate
01 · Live diagnostics

Catch problems early

LTFT drift, catalyst degradation, misfire counts — surfaced weeks before the check-engine light. Know which truck needs service before it strands a driver.

02 · Driver scoring

Behavior you can measure

WOT events, hard accelerations, idle time, RPM redline. Build per-driver profiles. Reward the smooth, coach the rough.

03 · Fuel theft

Stop the siphon

Fuel rail pressure + fuel rate + MAF in the same log. If fuel leaves the tank without the engine running, the data tells you when and how much.

04 · Predictive maintenance

Time the service, don't react

Run-time, warm-up count, distance since last clear. Schedule oil changes and tune-ups by usage, not by the calendar.


Pilot deployment in San Luis.

5 vehicles, 30 days, full data export at the end. If the platform earns its keep, we scale to your full fleet. If it doesn't, you've lost nothing but a Sunday afternoon plugging things in.