diff --git a/src/drivers/ssd.c b/src/drivers/ssd.c
index 079126a..7b6b923 100644
--- a/src/drivers/ssd.c
+++ b/src/drivers/ssd.c
@@ -1,6 +1,14 @@
 
 #include "ssd.h"
 
+inline void pulse(gpio_num_t pin) {
+    gpio_set_level(pin, 1);
+    esp_rom_delay_us(1);
+    gpio_set_level(pin, 0);
+    esp_rom_delay_us(1);
+}
+
+
 void shiftInit(const ssd_595_t* device) {
     gpio_config_t ioConfig = {
         .mode = GPIO_MODE_OUTPUT,
diff --git a/src/drivers/ssd.h b/src/drivers/ssd.h
index f553084..1d8debc 100644
--- a/src/drivers/ssd.h
+++ b/src/drivers/ssd.h
@@ -29,6 +29,7 @@ uint8_t map[17] = { // encoding of digits on the seven segment display
 };
 
 void shiftInit(const ssd_595_t* device);
+void pulse(gpio_num_t pin);
 
 void addDecimal(uint8_t* data); // adds a decimal to a single digit