Add SPI Example

.github/workflows/platformio.yml

@@ -48,7 +48,8 @@ jobs:
             examples/HttpsBuiltlnGet,
             examples/HttpsBuiltlnPost,
             examples/HttpsOTAUpgrade,
-            examples/HP303BSensor
+            examples/HP303BSensor,
+            examples/SPIExample
           ]
 
     steps:

README.md

@@ -54,7 +54,10 @@
 | HttpsBuiltlnGet    | ✅                 | ✅                  | ✅                  | ✅               | ✅                  | ✅               |
 | HttpsBuiltlnPost   | ✅                 | ✅                  | ✅                  | ✅               | ✅                  | ✅               |
 | HttpsOTAUpgrade    | ✅                 | ✅                  | ✅                  | ✅               | ✅                  | ✅               |
-| HP303BSensor       | ✅                 | ✅                  | ✅                  | ✅               | ✅                  | ✅               |
+| HP303BSensor*      | ✅                 | ✅                  | ✅                  | ✅               | ✅                  | ✅               |
+| SPIExample*        | ✅                 | ✅                  | ✅                  | ✅               | ✅                  | ✅               |
+
+- HP303BSensor,SPIExample it only demonstrates how to define and use SPI and I2C. Please confirm the pin connection and IO definition before use.
 
 
 # Quick start ⚡

examples/SPIExample/SPIExample.ino

@@ -0,0 +1,101 @@
+/**
+ * @file      SPIExample.ino
+ * @author    Lewis He ([email protected])
+ * @license   MIT
+ * @copyright Copyright (c) 2023  Shenzhen Xin Yuan Electronic Technology Co., Ltd
+ * @date      2023-11-30
+ * @note      The sketch only demonstrates how to multiplex the SPI bus
+ * * The sketch only demonstrates how to configure SPI and I2C Pin. The specific pins can be mapped to your convenient GPIO at will.
+ */
+
+#include <Arduino.h>
+#include <SPI.h>
+#include <Wire.h>
+#include <SD.h>
+#include "src/LoRa.h"
+#include "utilities.h"
+
+// !Please confirm the correct Pin, this is just a demonstration
+// !Please confirm the correct Pin, this is just a demonstration
+// !Please confirm the correct Pin, this is just a demonstration
+// The sketch only demonstrates how to configure SPI and I2C Pin. The specific pins can be mapped to your convenient GPIO at will.
+// If the core used is ESP32, IO35,39,34,36 can only be used for input and cannot be set as output
+#define RADIO_MISO_PIN              2
+#define RADIO_MOSI_PIN              15
+#define RADIO_SCLK_PIN              14
+#define RADIO_CS_PIN                4
+#define RADIO_RST_PIN               12
+#define RADIO_DIO_PIN               39
+#define I2C_SDA                     33
+#define I2C_SCL                     32
+
+int counter = 0;
+SPIClass RadioSPI(HSPI);
+
+void setup()
+{
+    Serial.begin(115200);
+
+    // If there is an SD card onboard, then assign the SPI to the SD card
+#ifdef BOARD_SCK_PIN
+    SPI.begin(BOARD_SCK_PIN, BOARD_MISO_PIN, BOARD_MOSI_PIN);
+    if (!SD.begin(BOARD_SD_CS_PIN)) {
+        Serial.println("Card Mount Failed");
+        return;
+    }
+    uint8_t cardType = SD.cardType();
+
+    if (cardType == CARD_NONE) {
+        Serial.println("No SD card attached");
+        return;
+    }
+    Serial.print("SD Card Type: ");
+    if (cardType == CARD_MMC) {
+        Serial.println("MMC");
+    } else if (cardType == CARD_SD) {
+        Serial.println("SDSC");
+    } else if (cardType == CARD_SDHC) {
+        Serial.println("SDHC");
+    } else {
+        Serial.println("UNKNOWN");
+    }
+
+    uint64_t cardSize = SD.cardSize() / (1024 * 1024);
+    Serial.printf("SD Card Size: %lluMB\n", cardSize);
+#endif
+
+    // Assign the second SPI handler to Radio
+    RadioSPI.begin(RADIO_SCLK_PIN, RADIO_MISO_PIN, RADIO_MOSI_PIN);
+
+    LoRa.setSPI(RadioSPI);
+
+    LoRa.setPins(RADIO_CS_PIN, RADIO_RST_PIN, RADIO_DIO_PIN);
+
+    //Examples accessing other spi devices
+    if (!LoRa.begin(915E6)) {
+        while (1) {
+            Serial.println("Starting LoRa failed!");
+            delay(1000);
+        }
+    }
+    // Maximize the use of available IO
+    Wire.begin(I2C_SDA, I2C_SCL);
+    //....I2C Devices do someing ..
+
+}
+
+void loop()
+{
+    Serial.print("Sending packet: ");
+    Serial.println(counter);
+
+    // send packet
+    LoRa.beginPacket();
+    LoRa.print("hello ");
+    LoRa.print(counter);
+    LoRa.endPacket();
+
+    counter++;
+
+    delay(1000);
+}