From de8617493fc07325834e802a3fb30eb0e5f3db74 Mon Sep 17 00:00:00 2001
From: Paludour <lhofinger@gmail.com>
Date: Tue, 25 Apr 2023 11:16:57 +0200
Subject: [PATCH 1/3] * Compatibility ProMicro

---
 src/sfm.cpp |  9 +++++++++
 src/sfm.hpp | 12 +++++++++---
 2 files changed, 18 insertions(+), 3 deletions(-)

diff --git a/src/sfm.cpp b/src/sfm.cpp
index 8ccb1df..a7c710f 100644
--- a/src/sfm.cpp
+++ b/src/sfm.cpp
@@ -28,6 +28,15 @@ 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);
+}
 #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);
diff --git a/src/sfm.hpp b/src/sfm.hpp
index 9fd5bdf..27851e3 100644
--- 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();
@@ -76,11 +80,11 @@ 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) || defined(ARDUINO_AVR_PROMICRO16)
   HardwareSerial sfmSerial;
-  #else
+#else
   SoftwareSerial sfmSerial;
-  #endif
+#endif
   uint8_t cmdBuffer[8] = {0};
   uint8_t ackBuffer[8] = {0};
   bool touched = false;
@@ -88,8 +92,10 @@ class SFM_Module{
   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
\ No newline at end of file

From 98fabbebd3c861861fb6af089c09fd727755555c Mon Sep 17 00:00:00 2001
From: Paludour <lhofinger@gmail.com>
Date: Tue, 25 Apr 2023 11:24:42 +0200
Subject: [PATCH 2/3] * Test 1.0.2 => 1.0.3

---
 library.properties | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/library.properties b/library.properties
index 7764b84..ff87cf7 100644
--- a/library.properties
+++ b/library.properties
@@ -1,5 +1,5 @@
 name=SFM-V1.7
-version=1.0.2
+version=1.0.3
 author=Matrixchung <vip99013zhq@outlook.com>
 maintainer=Matrixchung <vip99013zhq@outlook.com>
 sentence=Interfacing to the SFM-V1.7 Fingerprint Sensor for ESP32 platform

From a3cf4b8374c059425eb390412ffef41bbffd05cb Mon Sep 17 00:00:00 2001
From: Paludour <lhofinger@gmail.com>
Date: Fri, 28 Apr 2023 15:29:19 +0200
Subject: [PATCH 3/3] * Compatibility with ProMicro.

---
 src/sfm.cpp | 8 +++++++-
 src/sfm.hpp | 4 +++-
 2 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/src/sfm.cpp b/src/sfm.cpp
index a7c710f..c3ae3c0 100644
--- a/src/sfm.cpp
+++ b/src/sfm.cpp
@@ -35,7 +35,9 @@ SFM_Module::SFM_Module(uint8_t vccPin, uint8_t irqPin, HardwareSerial &hs):sfmSe
   digitalWrite(vcc_pin, HIGH); // Enable sensor vcc
   cmdBuffer[0] = 0xF5;
   cmdBuffer[7] = 0xF5;
-  sfmSerial.begin(115200);
+  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){
@@ -209,7 +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
index 27851e3..940f835 100644
--- a/src/sfm.hpp
+++ b/src/sfm.hpp
@@ -80,8 +80,10 @@ 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) || defined(ARDUINO_AVR_PROMICRO16)
+#if defined(ESP32)
   HardwareSerial sfmSerial;
+#elif defined(ARDUINO_AVR_PROMICRO16)
+  HardwareSerial &sfmSerial;
 #else
   SoftwareSerial sfmSerial;
 #endif