Merge pull request #7 from lhofinger/master

Compatibility with Pro Micro - 5V/16MHz
Matrixchung · May 1, 2023 · 96612f1 · 96612f1
2 parents 260c44e + a3cf4b8
commit 96612f1
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Showing 3 changed files with 27 additions and 4 deletions.
diff --git a/library.properties b/library.properties
@@ -1,5 +1,5 @@
 name=SFM-V1.7
-version=1.0.2
+version=1.0.3
 author=Matrixchung <[email protected]>
 maintainer=Matrixchung <[email protected]>
 sentence=Interfacing to the SFM-V1.7 Fingerprint Sensor for ESP32 platform

diff --git a/src/sfm.cpp b/src/sfm.cpp
@@ -28,6 +28,17 @@ SFM_Module::SFM_Module(uint8_t vccPin, uint8_t irqPin, uint8_t rxPin, uint8_t tx
   cmdBuffer[7] = 0xF5;
   sfmSerial.begin(115200, SERIAL_8N1, rx_pin, tx_pin);
 }
+#elif defined(ARDUINO_AVR_PROMICRO16)
+SFM_Module::SFM_Module(uint8_t vccPin, uint8_t irqPin, HardwareSerial &hs):sfmSerial(hs), vcc_pin(vccPin), irq_pin(irqPin){
+  pinMode(irq_pin, INPUT);
+  pinMode(vcc_pin, OUTPUT);
+  digitalWrite(vcc_pin, HIGH); // Enable sensor vcc
+  cmdBuffer[0] = 0xF5;
+  cmdBuffer[7] = 0xF5;
+  sfmSerial.begin(115200, SERIAL_8N1);
+  while (!Serial1)
+    delay(100);
+}
 #else
 SFM_Module::SFM_Module(uint8_t vccPin, uint8_t irqPin, uint8_t rxPin, uint8_t txPin, uint8_t uartIndex):sfmSerial(rxPin, txPin), vcc_pin(vccPin), irq_pin(irqPin), rx_pin(rxPin), tx_pin(txPin){
   pinMode(irq_pin, INPUT);
@@ -200,7 +211,11 @@ uint8_t SFM_Module::sendCmd(uint8_t cmdType, uint8_t p1, uint8_t p2, uint8_t p3,
         }
       }
     }
+#if defined(ARDUINO_AVR_PROMICRO16)
+    delay(2);
+#else
     delay(1);
+#endif
   }
   while(sfmSerial.available()) sfmSerial.read(); // flush buffer
   return SFM_ACK_SERIALTIMEOUT;

diff --git a/src/sfm.hpp b/src/sfm.hpp
@@ -46,7 +46,11 @@
  */
 class SFM_Module{
 public:
+#if defined(ARDUINO_AVR_PROMICRO16)
+  SFM_Module(uint8_t vccPin, uint8_t irqPin, HardwareSerial &hs);
+#else
   SFM_Module(uint8_t vccPin, uint8_t irqPin, uint8_t rxPin, uint8_t txPin, uint8_t uartIndex = 1);
+#endif
   ~SFM_Module();
   void enable();
   void disable();
@@ -76,20 +80,24 @@ class SFM_Module{
   uint8_t _getCheckSum(uint8_t *buffer);
   uint8_t _getDataPackage(String &package);
   uint8_t _getCmdReturn(uint8_t cmdType, uint8_t p1 = 0x00, uint8_t p2 = 0x00, uint8_t p3 = 0x00);
-  #if defined(ESP32)
+#if defined(ESP32)
   HardwareSerial sfmSerial;
-  #else
+#elif defined(ARDUINO_AVR_PROMICRO16)
+  HardwareSerial &sfmSerial;
+#else
   SoftwareSerial sfmSerial;
-  #endif
+#endif
   uint8_t cmdBuffer[8] = {0};
   uint8_t ackBuffer[8] = {0};
   bool touched = false;
   String uuid = "";
   uint16_t userCount = 0;
   uint8_t vcc_pin;
   uint8_t irq_pin;
+#if not defined(ARDUINO_AVR_PROMICRO16)
   uint8_t rx_pin;
   uint8_t tx_pin;
+#endif
 };
 
 #endif