Residents near blocked drainage and flood channels receive warnings too late to protect people, goods and property.
PRACTICAL PROJECT · Intermediate practical project
FloodWatch Community Node
Warn vulnerable streets before rising water becomes an emergency.
◷ 3–5 weeks✎ 5 stages
A solar warning node, calibrated water-level thresholds, alert test, community response map and maintenance contract.
Flood-prone communities, estates, markets, schools, councils and emergency organisations.
THE BUILD JOURNEY
01Every stage ends with evidence.
Discover · 3 days
02Investigate users and quantify the problem
Prove the local problem, customer and cost of inaction.
Design · 3 days
03Design the solution and business model
Create a safe product specification and a distinctive commercial offer.
Build · 5 days
04Source and build the prototype
Produce a functional supervised prototype with traceable materials.
Test · 4 days
05Test, improve and validate
Use repeatable tests and real-user feedback to prove performance.
Sell · 3 days
Cost, package and make the first offer
Turn the tested prototype into a credible product or service customers can buy.
LIVE COSTING LAB
Will the idea make money?
Adjust labour and profit assumptions. These September 2026 planning figures are illustrative; obtain current Nigerian supplier quotations before buying.
water-level sensor₦25,617
solar panel₦27,154
battery₦28,691
microcontroller₦30,228
siren and beacon₦31,765
GSM alert module₦33,302
Materials per prototype₦176,757
Suggested selling price per unit₦265,1361 unit: ₦265,136 projected revenue · update prices with supplier quotations