From 64fc98dcf7703a85b9d9868d9fd06a3ac46ec4b9 Mon Sep 17 00:00:00 2001
From: Pim van Pelt <pim@ipng.nl>
Date: Wed, 31 Oct 2018 13:51:02 +0100
Subject: [PATCH] Add a 50ms delay after switching relays, so we avoid RF
 spikes from inductive loads triggering capacitive touch sensors

---
 src/channel.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/channel.c b/src/channel.c
index 9b8f71e..6bd026e 100644
--- a/src/channel.c
+++ b/src/channel.c
@@ -155,6 +155,9 @@ void channel_set(int idx, bool state) {
   s_channels[idx].relay_state        = state;
   if (s_channels[idx].relay_gpio != GPIO_INVALID) {
     mgos_gpio_write(s_channels[idx].relay_gpio, state);
+    // We sleep for 50ms because inductive loads cause an RF spike which trips
+    // capacitive sensors
+    mgos_msleep(50);
   }
   if (s_channels[idx].led_gpio != GPIO_INVALID) {
     mgos_gpio_write(s_channels[idx].led_gpio, state);