ESP32 — Relay Timer with Interlock
Control a low-voltage relay driver with safe default and timeout. Program and practical guide for ESP32.
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ESP32 — UART Command Console
Parse bounded serial commands and return deterministic responses. Program and practical guide for ESP32.
ESP32 — I2C Address Scanner
Scan valid 7-bit addresses and report responding devices. Program and practical guide for ESP32.
ESP32 — SPI Device Identifier
Send an identification command and validate the returned bytes. Program and practical guide for ESP32.
ESP32 — OLED Sensor Dashboard
Render live sensor values and status without blocking acquisition. Program and practical guide for ESP32.
ESP32 — LCD Menu Interface
Build a button-driven menu with clear state transitions. Program and practical guide for ESP32.
ESP32 — Timestamped Data Logger
Record validated samples with timestamp and error flags. Program and practical guide for ESP32.
ESP32 — RTC Alarm Scheduler
Trigger scheduled actions while handling invalid time data. Program and practical guide for ESP32.
ESP32 — Interrupt Pulse Counter
Count input pulses safely and calculate frequency outside the ISR. Program and practical guide for ESP32.
ESP32 — Timer Periodic Scheduler
Run periodic tasks from deadlines instead of blocking delays. Program and practical guide for ESP32.
ESP32 — Watchdog Recovery Monitor
Feed the watchdog only after critical health checks pass. Program and practical guide for ESP32.
ESP32 — Low-Power Sensor Node
Sample briefly, store state and enter the deepest appropriate sleep. Program and practical guide for ESP32.
ESP32 — PID Temperature Controller
Implement bounded PID control with anti-windup and output limits. Program and practical guide for ESP32.
ESP32 — Manufacturing Self-Test
Test identity, rails, GPIO and buses and export a pass/fail record. Program and practical guide for ESP32.
ESP32-C3 — GPIO LED and Safe Current
Drive an LED with a calculated resistor and verify HIGH/LOW voltage. Program and practical guide for ESP32-C3.
ESP32-C3 — Push Button Debounce
Read a button reliably using a timed software debounce state. Program and practical guide for ESP32-C3.
ESP32-C3 — Traffic Light State Machine
Sequence three outputs without blocking delays. Program and practical guide for ESP32-C3.
ESP32-C3 — Potentiometer ADC Voltmeter
Convert ADC samples to calibrated input voltage. Program and practical guide for ESP32-C3.
ESP32-C3 — Temperature Sensor Monitor
Sample a temperature sensor and report threshold alarms. Program and practical guide for ESP32-C3.
ESP32-C3 — Automatic Light Controller
Use a light sensor with hysteresis to control an output. Program and practical guide for ESP32-C3.
ESP32-C3 — PWM LED Dimmer
Generate PWM and sweep duty cycle while measuring average voltage. Program and practical guide for ESP32-C3.
ESP32-C3 — Buzzer Tone Generator
Generate an audible square wave safely through a suitable driver. Program and practical guide for ESP32-C3.
ESP32-C3 — Servo Position Controller
Map an analogue command to standard servo pulse width. Program and practical guide for ESP32-C3.
ESP32-C3 — Stepper Motor Sequencer
Sequence a stepper driver with bounded acceleration timing. Program and practical guide for ESP32-C3.
ESP32-C3 — DC Motor PWM Controller
Control motor speed through a protected MOSFET or driver stage. Program and practical guide for ESP32-C3.
ESP32-C3 — Relay Timer with Interlock
Control a low-voltage relay driver with safe default and timeout. Program and practical guide for ESP32-C3.
ESP32-C3 — UART Command Console
Parse bounded serial commands and return deterministic responses. Program and practical guide for ESP32-C3.
ESP32-C3 — I2C Address Scanner
Scan valid 7-bit addresses and report responding devices. Program and practical guide for ESP32-C3.
ESP32-C3 — SPI Device Identifier
Send an identification command and validate the returned bytes. Program and practical guide for ESP32-C3.
ESP32-C3 — OLED Sensor Dashboard
Render live sensor values and status without blocking acquisition. Program and practical guide for ESP32-C3.
ESP32-C3 — LCD Menu Interface
Build a button-driven menu with clear state transitions. Program and practical guide for ESP32-C3.
ESP32-C3 — Timestamped Data Logger
Record validated samples with timestamp and error flags. Program and practical guide for ESP32-C3.
ESP32-C3 — RTC Alarm Scheduler
Trigger scheduled actions while handling invalid time data. Program and practical guide for ESP32-C3.
ESP32-C3 — Interrupt Pulse Counter
Count input pulses safely and calculate frequency outside the ISR. Program and practical guide for ESP32-C3.
ESP32-C3 — Timer Periodic Scheduler
Run periodic tasks from deadlines instead of blocking delays. Program and practical guide for ESP32-C3.
ESP32-C3 — Watchdog Recovery Monitor
Feed the watchdog only after critical health checks pass. Program and practical guide for ESP32-C3.
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