ESP32 Forum

Hi i am building home automation by using 433MHz transmitters and receivers with ASK is there and library for that?

No lib, but generally the RMT peripheral can be used for that. Suggest you look at the docs for the RMT driver in ESP-IDF.

Hi
Thanks for the answer i am using now the RMT (ir-protocol) example
in the logic analyser i can see the sending signal and received signal in 433 MHz transmitter and receiver are exact the same.
but if i send:
I (322190600) example: Send command 0x2b to address 0x7 Repeat ms: 114
i received different things as bellow
E (321815400) example: Scan Code (repeat) --- addr: 0x0007 cmd: 0x0075
E (321817520) example: Scan Code --- addr: 0x0017 cmd: 0x0037
E (321817630) example: Scan Code (repeat) --- addr: 0x0017 cmd: 0x0037
E (321819910) example: Scan Code --- addr: 0x001f cmd: 0x003f
E (321822060) example: Scan Code --- addr: 0x0016 cmd: 0x0020
E (321886570) example: Scan Code --- addr: 0x001f cmd: 0x003f
E (321922440) example: Scan Code (repeat) --- addr: 0x001f cmd: 0x003f
E (321928780) example: Scan Code (repeat) --- addr: 0x001f cmd: 0x003f
E (321993130) example: Scan Code (repeat) --- addr: 0x001f cmd: 0x003f
E (322008670) example: Scan Code (repeat) --- addr: 0x001f cmd: 0x003f


is there any configuration i can use?

Hi
I am using RMT (ir-protocol) example. and I am send as the message bellow:
and I am receiving as bellow i checked in the logic analyzer both signals from 433 MHz transmitter an Receiver are exact the same