Practical case: ESP32 BLE Presence Beacon
A standalone Bluetooth Low Energy BLE room presence beacon that broadcasts occupancy status, toggled via a physical pushbutton and displayed locally via a…
Device Course, ESP32
ESP32
Practical case: ESP32 Soil Moisture Monitor
A continuous plant hydration monitor that measures soil moisture using an analog capacitive sensor, triggering local visual and audible alerts when watering…
Practical case: ESP32 Local Network Monitor
A standalone Field Technician’s Local Network Monitor using an ESP32 configured as a Software Access Point SoftAP . It broadcasts a secure, localized Wi-Fi…
Practical case: astable oscillator with NE555
Level: Basic — Build an NE555 astable timer that blinks an LED at a visible frequency.
Practical case: One-Shot Timer Using NE555
Level: Basic – Build a monostable timer circuit using the NE555 IC to control an LED output for a set duration.
Practical case: Standby mode indicator
Level: Basic – Understand logical inversion using a NOT gate to activate a standby LED when the main system turns off.