8faa51711e
- Remove standalone SPI example and integrate SPI support into main test - Add commented SPI initialization option in comprehensive test - Remove debug print statements from interrupt test example - Implement non-blocking dataReady() operation in main test loop - Clean up output formatting for production use 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <noreply@anthropic.com>
111 lines
No EOL
3.5 KiB
C++
111 lines
No EOL
3.5 KiB
C++
/*!
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* @file bmp5xx_interrupt_test.ino
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*
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* This is a simple test sketch for the BMP5xx interrupt functionality.
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* It demonstrates data ready interrupts and shows how to monitor the interrupt pin.
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* Connect the BMP5xx INT pin to the specified Arduino interrupt pin.
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*
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* Adafruit invests time and resources providing this open source code,
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* please support Adafruit and open-source hardware by purchasing
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* products from Adafruit!
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*
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* Written by Limor "ladyada" Fried for Adafruit Industries.
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* BSD license, all text above must be included in any redistribution
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*/
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#include <Wire.h>
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#include <Adafruit_Sensor.h>
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#include "Adafruit_BMP5xx.h"
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#define BMP5XX_IRQ_PIN 2 // Interrupt pin (change this if using a different pin)
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Adafruit_BMP5xx bmp; // Create BMP5xx object
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// Interrupt flag - set by interrupt handler
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volatile bool dataReady = false;
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// Interrupt service routine
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void bmp5xxInterruptHandler() {
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dataReady = true;
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}
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void setup() {
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Serial.begin(115200);
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while (!Serial) delay(10); // Wait for Serial Monitor to open
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Serial.println(F("Adafruit BMP5xx Interrupt Test"));
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Serial.print(F("Using interrupt pin: "));
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Serial.println(BMP5XX_IRQ_PIN);
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Serial.println();
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// Configure interrupt pin as input
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pinMode(BMP5XX_IRQ_PIN, INPUT);
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// Try to initialize the sensor using I2C
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if (!bmp.begin(BMP5XX_ALTERNATIVE_ADDRESS, &Wire)) {
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Serial.println(F("Could not find a valid BMP5xx sensor, check wiring!"));
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while (1) delay(10);
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}
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Serial.println(F("BMP5xx found!"));
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// Configure sensor settings for interrupt testing
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bmp.setTemperatureOversampling(BMP5XX_OVERSAMPLING_1X);
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bmp.setPressureOversampling(BMP5XX_OVERSAMPLING_1X);
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bmp.setIIRFilterCoeff(BMP5XX_IIR_FILTER_BYPASS);
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bmp.setOutputDataRate(BMP5XX_ODR_01_HZ); // 1 Hz for clear interrupt timing
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bmp.setPowerMode(BMP5XX_POWERMODE_NORMAL);
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// Configure interrupt: pulsed, active high, push-pull, data ready source
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Serial.println(F("Configuring data ready interrupt..."));
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if (!bmp.configureInterrupt(BMP5XX_INTERRUPT_PULSED,
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BMP5XX_INTERRUPT_ACTIVE_HIGH,
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BMP5XX_INTERRUPT_PUSH_PULL,
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BMP5XX_INTERRUPT_DATA_READY,
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true)) {
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Serial.println(F("Failed to configure interrupt!"));
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while (1) delay(10);
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}
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// Attach interrupt handler
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attachInterrupt(digitalPinToInterrupt(BMP5XX_IRQ_PIN), bmp5xxInterruptHandler, RISING);
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Serial.println(F("Interrupt configured successfully!"));
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Serial.println(F("Waiting for interrupts..."));
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Serial.println();
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}
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void loop() {
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// Check if interrupt occurred
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if (dataReady) {
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// Clear the interrupt flag
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dataReady = false;
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// Check if data is actually ready using library function
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if (bmp.dataReady()) {
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// Read the sensor data
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if (bmp.performReading()) {
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Serial.print(F(" Temperature: "));
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Serial.print(bmp.temperature);
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Serial.println(F(" °C"));
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Serial.print(F(" Pressure: "));
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Serial.print(bmp.pressure);
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Serial.println(F(" hPa"));
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Serial.print(F(" Pin state after read: "));
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Serial.println(digitalRead(BMP5XX_IRQ_PIN) ? F("HIGH") : F("LOW"));
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} else {
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Serial.println(F(" Failed to read sensor data"));
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}
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} else {
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Serial.println(F("Data not ready (false interrupt?)"));
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}
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Serial.println(F("---"));
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}
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// Small delay to prevent overwhelming the serial output
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delay(10);
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} |