From 068d3a6f7048e8a40ae8cae37056f08d4bcfb173 Mon Sep 17 00:00:00 2001
From: Lukian <lulul7018@gmail.com>
Date: Tue, 22 Oct 2024 23:25:38 +0200
Subject: [PATCH] commit

---
 dht22.lua | 55 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 55 insertions(+)

diff --git a/dht22.lua b/dht22.lua
index 3d39f96..060a8d9 100644
--- a/dht22.lua
+++ b/dht22.lua
@@ -1,3 +1,5 @@
+-- écrit par Lukian Leizour le 22/10/2024
+
 function print_temp()
 	s = sensor.attach("DHT22", pio.GPIO18)
 	tmr.delayms(500)
@@ -20,3 +22,56 @@ function humi_neo(min, max)
 		tmr.delayms(500)
 	end
 end
+
+function min(tab)
+	local min = tab[1]
+	for i=1,#tab do
+		if tab[i] < min then min = tab[i] end
+	end
+	return min
+end
+
+function max(tab)
+	local max = tab[1]
+	for i=1,#tab do
+		if tab[i] > max then max = tab[i] end
+	end
+	return max
+end
+
+function avg(tab)
+	local sum = 0
+	for i=1,#tab do
+		sum = sum + tab[i]
+	end
+	return sum / #tab
+end
+
+function temp_humi_avg()
+	temps = {}
+	humis = {}
+	s = sensor.attach("DHT22", pio.GPIO18)
+	device = pwm.attach(pio.GPIO2, 3, 0.5)
+	blinking = false
+	tmr.delayms(500)
+	while true do
+		temp = s:read("temperature")
+		humi = s:read("humidity")
+		if #temps == 10 then
+			for i=1,9 do
+				temps[i] = temps[i + 1]
+				humis[i] = humis[i + 1]
+			end
+			temps[10] = temp
+			humis[10] = humi
+		else
+			temps[#temps + 1] = temp
+			humis[#humis + 1] = humi
+		end
+		print("temp: "..temp..", min temp: "..min(temps)..", max temp: "..max(temps)..", avg temp: "..avg(temps))
+		print("humi: "..humi..", min humi: "..min(humis)..", max humi: "..max(humis)..", avg humi: "..avg(humis).."\n")
+		if humi > avg(humis) and not blinking then device:start(); blinking = true
+		elseif humi <= avg(humis) and blinking then device:stop(); blinking = false end
+		tmr.delayms(10000)
+	end
+end