add ESP32 RMT IR

Author: wemos

micropython/drivers/ir/esp32_rmt_ir/esp32_rmt_ir.py

@@ -0,0 +1,76 @@
+# ESP32 RMT IR for MicroPython
+# MIT license; Copyright (c) 2022-2024 WEMOS.CC
+
+import esp32
+from machine import Pin
+import struct 
+import time
+import gc
+
+
+IR_TYPE=[{'tag':'NEC','start':(9000, 4500),'high':( 560,  1690 ),'low':( 560, 560 ),'end':( 560,0 ) },
+		 {'tag':'SAMSUNG','start':(4500, 4450),'high':( 560, 1600 ),'low':( 560, 560 ),'end':( 8950,0 )},
+		 {'tag':'LG32','start':(4500, 4500),'high':( 500, 1750 ),'low':( 500, 560 ),'end':( 8950,0 )}]
+
+
+
+class ESP32_RMT_IR:
+
+	def __init__(self,pin):
+		try:
+			self.ir = esp32.RMT(0, pin=Pin(pin), clock_div=80, tx_carrier=(38000, 33, 1))#1us,  38khz
+		except:
+			print("Error")
+			self.available=0
+		else:
+			self.available=1
+	
+	def find_type(self,type):
+		for i, dic in enumerate(IR_TYPE):
+			if(dic['tag']==type):
+				return i
+		return -1
+	
+	def build_data(self,cmd_data,type):
+
+		i=self.find_type(type)
+		
+		if(i!=-1):
+			data_START=IR_TYPE[i]['start']
+			data_HIGH=IR_TYPE[i]['high']
+			data_LOW=IR_TYPE[i]['low']
+			data_END=IR_TYPE[i]['end']
+			
+			tmp=data_START
+
+			for b in ('{:032b}'.format(cmd_data)):
+				if (b=='1'):
+					tmp+=data_HIGH
+
+				else:
+					tmp+=data_LOW
+			
+			tmp+=data_END
+			
+			return tmp
+			
+		else:
+			return -1
+	
+	def send_INT32(self,data,type):
+		if(self.available):
+
+			tmp=self.build_data(data,type)
+			
+			if(tmp!=-1):
+				if(self.ir.wait_done()):
+					self.ir.write_pulses(tmp, 1)
+		
+	
+	def send_NEC(self,address,cmd):
+
+		if(self.available):
+			tmp=struct.pack(">4b",address,~address,cmd,~cmd)
+			data=struct.unpack('>i',tmp)[0]
+			rmt_data=self.send_INT32(data,'NEC')
+			return rmt_data

micropython/drivers/ir/esp32_rmt_ir/manifest.py

@@ -0,0 +1,2 @@
+metadata(description="ESP32 RMT IR.", version="1.0.0")
+module("esp32_rmt_ir.py", opt=3)