nRF52 Battery-Powered BLE Sensor
A guided Advanced practical covering design, wiring, firmware, measurement, troubleshooting and documentation.
Bluetooth Low Energy and low-power nRF52 projects. Select a project for its circuit, connections, complete program, tests and troubleshooting.
26 projects found
A guided Advanced practical covering design, wiring, firmware, measurement, troubleshooting and documentation.
Drive an LED with a calculated resistor and verify HIGH/LOW voltage. Program and practical guide for nRF52.
Read a button reliably using a timed software debounce state. Program and practical guide for nRF52.
Sequence three outputs without blocking delays. Program and practical guide for nRF52.
Convert ADC samples to calibrated input voltage. Program and practical guide for nRF52.
Sample a temperature sensor and report threshold alarms. Program and practical guide for nRF52.
Use a light sensor with hysteresis to control an output. Program and practical guide for nRF52.
Generate PWM and sweep duty cycle while measuring average voltage. Program and practical guide for nRF52.
Generate an audible square wave safely through a suitable driver. Program and practical guide for nRF52.
Map an analogue command to standard servo pulse width. Program and practical guide for nRF52.
Sequence a stepper driver with bounded acceleration timing. Program and practical guide for nRF52.
Control motor speed through a protected MOSFET or driver stage. Program and practical guide for nRF52.
Control a low-voltage relay driver with safe default and timeout. Program and practical guide for nRF52.
Parse bounded serial commands and return deterministic responses. Program and practical guide for nRF52.
Scan valid 7-bit addresses and report responding devices. Program and practical guide for nRF52.
Send an identification command and validate the returned bytes. Program and practical guide for nRF52.
Render live sensor values and status without blocking acquisition. Program and practical guide for nRF52.
Build a button-driven menu with clear state transitions. Program and practical guide for nRF52.
Record validated samples with timestamp and error flags. Program and practical guide for nRF52.
Trigger scheduled actions while handling invalid time data. Program and practical guide for nRF52.
Count input pulses safely and calculate frequency outside the ISR. Program and practical guide for nRF52.
Run periodic tasks from deadlines instead of blocking delays. Program and practical guide for nRF52.
Feed the watchdog only after critical health checks pass. Program and practical guide for nRF52.
Sample briefly, store state and enter the deepest appropriate sleep. Program and practical guide for nRF52.
Implement bounded PID control with anti-windup and output limits. Program and practical guide for nRF52.
Test identity, rails, GPIO and buses and export a pass/fail record. Program and practical guide for nRF52.