diff --git a/software/platformio.ini b/software/platformio.ini
index 2476a51..0f9ef77 100644
--- a/software/platformio.ini
+++ b/software/platformio.ini
@@ -16,7 +16,7 @@ board_f_cpu = 160000000L
 board_f_flash = 80000000L
 framework = arduino
 ;build_flags = -DASYNC_TCP_SSL_ENABLED=1
-build_flags = -fexceptions
+build_flags = -fexceptions -DLOG_LOCAL_LEVEL=ESP_LOG_DEBUG
 lib_deps =
     https://github.com/me-no-dev/ESPAsyncWebServer.git
     https://github.com/me-no-dev/AsyncTCP.git
diff --git a/software/src/coin.cpp b/software/src/coin.cpp
index 07a5162..6751e91 100644
--- a/software/src/coin.cpp
+++ b/software/src/coin.cpp
@@ -39,10 +39,15 @@ void Coin::setup(void) {
 }
 
 int Coin::getMoney() {
-  if (millis() - lastUpdate <= 200) delay(200);  // make sure to wait for the last pulse
+  while (millis() - lastUpdate <= 150) delay(150);  // make sure to wait for the last pulse
   return pulseCounter*5;
 }
 
+int Coin::isMoneyInserted() {
+  if (millis() - lastUpdate <= 1000) return pulseCounter*5;
+  else return 0;
+}
+
 void Coin::setZero() {
   pulseCounter=0;
 }
diff --git a/software/src/coin.h b/software/src/coin.h
index d866482..9f88057 100644
--- a/software/src/coin.h
+++ b/software/src/coin.h
@@ -6,6 +6,7 @@ class Coin {
     Coin(void);
     void setup(void);
     int getMoney(void);
+    int isMoneyInserted(void);
     void setZero(void);
     void subtractMoney(int);
   private:
diff --git a/software/src/hardware.h b/software/src/hardware.h
index 332c936..a1068b6 100644
--- a/software/src/hardware.h
+++ b/software/src/hardware.h
@@ -21,7 +21,7 @@ static constexpr bool PROGMEM MQTT_SECURE = true;
 static const char* PROGMEM mqtt_username = "vending";
 static const char* PROGMEM mqtt_password = "password";
 
-static constexpr uint8_t PROGMEM COIN_PULSE_PIN = 15;
+static constexpr uint8_t PROGMEM COIN_PULSE_PIN = 36;
 
 #endif /* _HARDWARE_H */
 
@@ -29,7 +29,7 @@ static constexpr uint8_t PROGMEM COIN_PULSE_PIN = 15;
  *             __________
  *        3v3 |          | GND -- GND
  *        RST |          |  23 -- Servo0
- *         36 |          |  22 -- Servo1
+ * PULSE-- 36 |          |  22 -- Servo1
  *         39 |          |  01 (UART_TX)
  *         34 |          |  03 (UART_RX)
  *         35 |          |  21 -- Servo2
diff --git a/software/src/led.cpp b/software/src/led.cpp
index 2c8bc7e..7f51b0c 100644
--- a/software/src/led.cpp
+++ b/software/src/led.cpp
@@ -4,6 +4,9 @@
 
 #include "led.h"
 #include "hardware.h"
+#include "coin.h"
+
+extern Coin coin;
 
 using namespace std;
 
@@ -49,6 +52,26 @@ void Led::loop_denied(void) {
 
 void Led::loop_steady(void) {
   fill_solid(leds, NUM_LEDS, color);
+  if (int moneyinserted = coin.isMoneyInserted()) {
+    fill_solid(leds, 8, CRGB::Black);
+    if (moneyinserted >= 5) {
+      leds[0] = CRGB::Yellow;
+    } if (moneyinserted >= 10) {
+      leds[1] = CRGB::Yellow;
+    } if (moneyinserted >= 20) {
+      leds[2] = CRGB::Yellow;
+    } if (moneyinserted >= 50) {
+      leds[3] = CRGB::Yellow;
+    } if (moneyinserted >= 75) {
+      leds[4] = CRGB::Yellow;
+    } if (moneyinserted >= 100) {
+      leds[5] = CRGB::Yellow;
+    } if (moneyinserted >= 150) {
+      leds[6] = CRGB::Yellow;
+    } if (moneyinserted >= 200) {
+      leds[7] = CRGB::Yellow;
+    }
+  }
 }
 
 void Led::changeAnimation(uint8_t num, uint16_t duration) {
@@ -67,7 +90,11 @@ void Led::changeColor(uint8_t r, uint8_t g, uint8_t b) {
   change = true;
 }
 void Led::changeBrightness(uint8_t brightness) {
-  FastLED.setBrightness(brightness);
+  if (brightness > 254) { // don't set first byte to 255 on tm1829
+    FastLED.setBrightness(254);
+  } else {
+    FastLED.setBrightness(brightness);
+  }
   change = true;
 }
 
diff --git a/software/src/shelf.cpp b/software/src/shelf.cpp
index 135a118..9dac4e2 100644
--- a/software/src/shelf.cpp
+++ b/software/src/shelf.cpp
@@ -29,10 +29,11 @@ void Shelf::reload(void) {
 
 void Shelf::dispenseTask(void* parameters) {
   Serial.println("dispensing");
-  if (coin.getMoney() > 50) {
+  if (coin.getMoney() >= 50) {
     item.at(num)->quantity--;
     led.changeAnimation(1, 0);
     pusher.push(num);
+    coin.subtractMoney(50);
     vTaskDelay(500 / portTICK_PERIOD_MS);
     led.changeAnimation(2, 0);
     vTaskDelay(7000 / portTICK_PERIOD_MS);