diff --git a/esp32/mods/modpycom.c b/esp32/mods/modpycom.c
index 8eca82ea9d..7b505933c0 100644
--- a/esp32/mods/modpycom.c
+++ b/esp32/mods/modpycom.c
@@ -110,7 +110,7 @@ STATIC mp_obj_t mod_pycom_pulses_get (mp_obj_t gpio, mp_obj_t timeout) {
     rmt_rx.rmt_mode = RMT_MODE_RX;
     rmt_rx.rx_config.filter_en = true;
     rmt_rx.rx_config.filter_ticks_thresh = 100;
-    rmt_rx.rx_config.idle_threshold = 20000;
+    rmt_rx.rx_config.idle_threshold = 0xffff;
     rmt_config(&rmt_rx);
 
     RingbufHandle_t rb = NULL;