ex7 demo with 7-seg display

Author: lewispg228

examples/Example_07_Demo_Display/Example_07_Demo_Display/Example_07_Demo_Display.ino

@@ -0,0 +1,109 @@
+/*
+  Using the BMV080 Particulate Matter PM2.5 Sensor
+
+  This example shows how display the Pm2.5 readings on a SparkFun Qwiic 
+  Alphanumeric display.
+  
+  It uses the sensor in "continuous mode" to get
+  particulate matter readings once every second.
+
+  It uses polling of the device to check if new data is available.
+
+  By: Pete Lewis
+  SparkFun Electronics
+  Date: September, 2024
+  SparkFun code, firmware, and software is released under the MIT License.
+    Please see LICENSE.md for further details.
+
+  Hardware Connections:
+  IoT RedBoard --> BMV080
+  QWIIC --> QWIIC
+
+  BMV080 "mode" jumper set to I2C (default)
+
+  Serial.print it out at 115200 baud to serial monitor.
+
+  Feel like supporting our work? Buy a board from SparkFun!
+  https://www.sparkfun.com/products/26554
+*/
+
+#include "SparkFun_BMV080_Arduino_Library.h" // CTRL+Click here to get the library: http://librarymanager/All#SparkFun_BMV080
+#include <Wire.h>
+
+SparkFunBMV080I2C bmv080;           // Create an instance of the BMV080 class
+#define BMV080_ADDR 0x57 // SparkFun BMV080 Breakout defaults to 0x57
+
+#include <SparkFun_Alphanumeric_Display.h> //Click here to get the library: http://librarymanager/All#SparkFun_Qwiic_Alphanumeric_Display by SparkFun
+HT16K33 display;
+
+void setup()
+{
+    Serial.begin(115200);
+
+    while (!Serial)
+        delay(10); // Wait for Serial to become available.
+    // Necessary for boards with native USB (like the SAMD51 Thing+).
+    // For a final version of a project that does not need serial debug (or a USB cable plugged in),
+    // Comment out this while loop, or it will prevent the remaining code from running.
+
+    Serial.println();
+    Serial.println("BMV080 Example 1 - Basic Readings");
+
+    Wire.begin();
+
+    if (bmv080.begin(BMV080_ADDR, Wire) == false)
+    {
+        Serial.println(
+            "BMV080 not detected at default I2C address. Check your jumpers and the hookup guide. Freezing...");
+        while (1)
+            ;
+    }
+    Serial.println("BMV080 found!");
+
+    // Wire.setClock(400000); //Increase I2C data rate to 400kHz
+
+    /* Initialize the Sensor (read driver, open, reset, id etc.)*/
+    bmv080.init();
+
+    /* Set the sensor mode to continuous mode */
+    if (bmv080.setMode(SFE_BMV080_MODE_CONTINUOUS) == true)
+    {
+        Serial.println("BMV080 set to continuous mode");
+    }
+    else
+    {
+        Serial.println("Error setting BMV080 mode");
+    }
+
+    if (display.begin() == false)
+    {
+        Serial.println("Qwiic Alphanumeric Device did not acknowledge! Freezing.");
+        while (1);
+    }
+    Serial.println("Qwiic Alphanumeric Display acknowledged.");
+
+    display.setBrightness(5); // Set brightness to 5/16 full brightness
+
+    display.print("PM2.5");
+
+}
+
+void loop()
+{
+    if (bmv080.dataAvailable())
+    {
+        float pm25 = bmv080.getPM25();
+
+        Serial.print(pm25);
+        display.print(int(pm25));
+
+        if (bmv080.getIsObstructed() == true)
+        {
+            Serial.print("\tObstructed");
+            display.print("Obst");
+        }
+
+        Serial.println();
+    }
+    delay(100);
+}

src/SparkFun_BMV080_Arduino_Library.h

@@ -66,7 +66,7 @@ class SparkFunBMV080SPI : public sfeBmv080
     /// @param spiPort The SPI port to use for communication
     /// @param spiSettings The SPI settings to use for communication
     /// @return True if successful, false otherwise
-    bool begin(uint8_t csPin, SPIClass &spiPort = SPI, SPISettings spiSettings = SPISettings(1000000, MSBFIRST, SPI_MODE0))
+    bool begin(uint8_t csPin, SPIClass &spiPort = SPI, SPISettings spiSettings = SPISettings(100000, MSBFIRST, SPI_MODE0))
     {
 
         // Setup Arduino SPI bus