The RFM210W-433S1 is a radio frequency module from Hope Microelectronics. It operates in the 433MHz frequency range, and is compliant with the IEEE 802.15.4 and ZigBee standards. It features an on-module antenna for fast and reliable communication. This module supports a range of a current source type, including pulse width modulation (PWM), linear frequency modulation (LFM), frequency shift keying (FSK) and frequency division multiplexing (FDM). The module provides 8 GPIO pins for controlling user functions. It also features a hardware security module for secure communication. It is also compatible with various operating systems including Windows, Linux, and Android.