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Real-world electrical engineering and power systems work — from design to deployment.
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Proteus (14)
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Protection (1)
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EV Charging System (1)
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Op-Amp (1)
8051 (1)
GSM / SMS (1)
Traffic Control (1)
Gas / smoke detector with SMS alert (v2)
An Arduino Uno watching an MQ-2 (LPG and smoke) and an MQ-3 (alcohol and vapour). On a confirmed leak it sounds the buzzer, starts the exhaust fan, closes the gas valve with a servo, and sends an SMS through a SIM900 module.