diff --git a/src/kerstezel.c b/src/kerstezel.c
index 46465f8..7726afb 100644
--- a/src/kerstezel.c
+++ b/src/kerstezel.c
@@ -13,11 +13,15 @@
 
 #include <linux/seccomp.h>
 
+#include <bcm2835.h>
+
 #define LOGF(x, ...) do { logf_impl(x, __FILE__, __LINE__, __func__, __VA_ARGS__); } while(0);
 #define LOG(x) do { log_impl(x, __FILE__, __LINE__, __func__); } while(0);
 #define DEFAULT_PORT 9305
 #define MBUF_SIZE 2048
 
+#define TROMMEL_PIN 17
+
 const char *SOCKET_ERROR = "Socket-fout";
 
 typedef struct mbuf {
@@ -147,6 +151,9 @@ int do_command_loop(mbuf_t *mbuf) {
 		if (len == 0) return 0;
 		LOGF("COMMANDO: %s", buf);
 		if (strcmp(buf, "trommel") == 0) {
+			bcm2835_gpio_write(TROMMEL_PIN, HIGH);
+			bcm2835_delay(250);
+			bcm2835_gpio_write(TROMMEL_PIN, LOW);
 			const char *ok = "oké\n";
 			write(mbuf->sock, ok, strlen(ok) * sizeof(char));
 		} else if (strcmp(buf, "ping") == 0) {
@@ -192,6 +199,10 @@ int main(int argc, char *argv[]) {
 	close(STDIN_FILENO);
 	close(STDOUT_FILENO);
 	close(STDERR_FILENO);
+
+	bcm2835_init();
+	bcm2835_gpio_fsel(TROMMEL_PIN, BCM2835_GPIO_FSEL_OUTP);
+
 	if (prctl(PR_SET_SECCOMP, SECCOMP_MODE_STRICT) < 0) {
 		LOGF("Kon seccomp niet aanroepen: %s", strerror(errno));
 	}
@@ -242,5 +253,6 @@ int main(int argc, char *argv[]) {
 	(void) quit_if_fail(do_command_loop(buf), "Fout");
 	LOG("De andere kant heeft de verbinding verbroken");
 	free(buf);
+	bcm2835_close();
 	return 0;
 }