Updated emulator and keylistener

examples/Makefile

@@ -3,14 +3,15 @@
 CXX := g++
 CXXFLAGS := -std=c++17 -O3 -Wall -Wextra -march=native -flto
 LDFLAGS := -flto
+OUT_DIR := ./../out
 
 all: keylistener emulator
 
 keylistener: keylistener.cpp
-	$(CXX) $(CXXFLAGS) keylistener.cpp -o keylistener $(LDFLAGS)
+	$(CXX) $(CXXFLAGS) keylistener.cpp -o $(OUT_DIR)/keylistener $(LDFLAGS)
 
 emulator: emulator.cpp
-	$(CXX) $(CXXFLAGS) emulator.cpp -o emulator $(LDFLAGS)
+	$(CXX) $(CXXFLAGS) emulator.cpp -o $(OUT_DIR)/emulator $(LDFLAGS) -llgpio
 
 clean:
-	rm -f keylistener emulator
+	rm -f $(OUT_DIR)/keylistener $(OUT_DIR)/emulator

examples/emulator.cpp

@@ -1,8 +1,9 @@
+// lgpio_blink.cpp
 #include <iostream>
 #include <csignal>
 #include <thread>
 #include <chrono>
-#include <pigpiod_if2.h>
+#include <lgpio.h>
 
 bool running = true;
 
@@ -11,37 +12,43 @@ void signal_handler(int signum) {
 }
 
 int main() {
-    const int PIN_HOLD = 17;    // stays ON
+    const int PIN_HOLD = 17;   // stays ON
-    const int PIN_BLINK = 27;   // toggles
+    const int PIN_BLINK = 27;  // toggles
-    const double ON_INTERVAL = 0.2;   // seconds ON
+    const double ON_INTERVAL  = 0.2;   // seconds
-    const double OFF_INTERVAL = 0.8;  // seconds OFF
+    const double OFF_INTERVAL = 0.8;   // seconds
 
     signal(SIGINT, signal_handler);
 
-    int pi = pigpio_start(NULL, NULL);
+    // Open the GPIO chip (0 = /dev/gpiochip0 on every Pi)
-    if (pi < 0) {
+    int h = lgGpiochipOpen(0);
-        std::cerr << "Failed to connect to pigpiod daemon.\n";
+    if (h < 0) {
+        std::cerr << "Failed to open gpiochip0 (error " << h << ")\n";
         return 1;
     }
 
+    // Claim pins as outputs
+    int rc1 = lgGpioClaimOutput(h, 0, PIN_HOLD, 1);   // 1 = initial HIGH
+    int rc2 = lgGpioClaimOutput(h, 0, PIN_BLINK, 0);  // 0 = initial LOW
+    if (rc1 < 0 || rc2 < 0) {
+        std::cerr << "Failed to claim pins (rc1=" << rc1 << ", rc2=" << rc2 << ")\n";
+        lgGpiochipClose(h);
+        return 1;
+    }
 
-    set_mode(pi, PIN_HOLD, PI_OUTPUT);
+    std::cout << "GPIO " << PIN_HOLD << " ON (constant), toggling GPIO " << PIN_BLINK << ".\n";
-    set_mode(pi, PIN_BLINK, PI_OUTPUT);
-
-    gpio_write(pi, PIN_HOLD, 1);
-    std::cout << "GPIO " << PIN_HOLD << " ON (constant), toggling GPIO " << PIN_BLINK << "...\n";
 
     while (running) {
-        gpio_write(pi, PIN_BLINK, 1);
+        lgGpioWrite(h, PIN_BLINK, 1);
         std::this_thread::sleep_for(std::chrono::duration<double>(ON_INTERVAL));
-        gpio_write(pi, PIN_BLINK, 0);
+
+        lgGpioWrite(h, PIN_BLINK, 0);
         std::this_thread::sleep_for(std::chrono::duration<double>(OFF_INTERVAL));
     }
 
     std::cout << "\nStopping...\n";
-    gpio_write(pi, PIN_HOLD, 0);
+    lgGpioWrite(h, PIN_HOLD, 0);
-    gpio_write(pi, PIN_BLINK, 0);
+    lgGpioWrite(h, PIN_BLINK, 0);
-    pigpio_stop(pi);
 
+    lgGpiochipClose(h);
     return 0;
 }

examples/keylistener.cpp

@@ -56,8 +56,9 @@ public:
         {
             for (auto v : voltages)
             {
-                button_id++;
+                if (voltage < v)
-                if (voltage > v)
+                    button_id++;
+                else
                     break;
             }
         }
@@ -119,7 +120,7 @@ void send_key_code(uint8_t i)
 // Callback examples
 void callback0(int button_id, bool long_press)
 {
-    std::cout << "[Channel 0] Button " << button_id << " pressed. Long press: " << long_press << "\n";
+    //std::cout << "[Channel 0] Button " << button_id << " pressed. Long press: " << long_press << "\n";
     if (button_id == 4)
     {
         if (long_press)
@@ -148,7 +149,7 @@ void callback0(int button_id, bool long_press)
 
 void callback1(int button_id, bool long_press)
 {
-    std::cout << "[Channel 1] Button " << button_id << " pressed. Long press: " << long_press << "\n";
+    //std::cout << "[Channel 1] Button " << button_id << " pressed. Long press: " << long_press << "\n";
     if (button_id == 3)
     {
         if (!long_press)
@@ -201,11 +202,16 @@ int main()
 
     constexpr double interval = 1.0 / FREQUENCY;
 
+    std::cout << "Keylistener started with fifo " << FIFO_PATH << "\n";
+
     while (true)
     {
         auto loop_start = std::chrono::steady_clock::now();
         double v0 = read_diff(file_i2c, 0x04);
         double v1 = read_diff(file_i2c, 0x05);
+        //if(v0<voltages[0] || v1<voltages[0])
+        //    std::cout << "Channel 0: " << v0 << " Channel 1: " << v1;
+
         proc0.process_voltage(v0);
         proc1.process_voltage(v1);
         auto loop_end = std::chrono::steady_clock::now();

examples/keylistener.py

@@ -4,7 +4,7 @@ import struct
 from smbus2 import SMBus
 
 ADS1115_ADDRESS = 0x48
-FIFO_PATH = "/tmp/myfifo"
+FIFO_PATH = "/tmp/fastcarplay_pipe"
 LONG_PRESS = 20
 fifo_file = None