/nodemcu-rfswitch

rfswitch lua module for NodeMCU

Primary LanguageLua

nodemcu-rfswitch

rfswitch pure-lua module for NodeMCU.

Usage

Transmit/Receive data using the radio module.

Syntax

rfswitch.send(protocol_id, pulse_length, repeat_count, pin, value, length, tx_cb)
rfswitch.recv(pin, rx_cb)

Parameters

  • protocol_id positive integer value, from 1-7
  • pulse_length length of one pulse in microseconds, usually from 300 to 600
  • repeat_count repeat value, usually from 1 to 5. This is a asynchronous task
  • pin I/O index of pin, example 6 is for GPIO12
  • value positive integer value, this is the primary data which will be sent
  • length bit length of value, if value length is 3 bytes, then length is 24
  • tx_cb() invoked when send finished
  • rx_cb(protocol_id, value, length) invoked when receive a data

Issues

GPIO外部中断任务在NodeMCU处于高负载模式下会被跳过，导致接收到的升降沿错误，无法正确解析数据。连续按下对应按键会增加接收到数据的正确性。实际产品不建议使用此方案解析RF数据。

Documentation

https://github.com/sui77/rc-switch

https://github.com/nodemcu/nodemcu-firmware/blob/master/app/modules/rfswitch.c