SDR XTR+ Tiny Extended-Range TCXO-Based SDR & DVB-T USB Stick (RTL2832U + E4000) with Antenna and Remote Control M5 Stack Mini 3A Relay Unit Module Type 2-Channel Relay Module

Module Type 2-Channel Relay Module with Optocoupler Isolation Relay Operating Voltage 5V DC Signal Trigger Level Low-level trigger (active LOW) Number of Channels 2 (independently controllable) Relay Type SPDT (Single Pole Double Throw) - NO

and signal processing demonstrations

fully compatible with Arduino and other microcontroller platforms

Technical Help: Circuit design

SDR XTR+ Tiny Extended-Range TCXO-Based SDR & DVB-T USB Stick (RTL2832U + E4000) with Antenna and Remote Control M5 Stack Mini 3A Relay Unit Module Type 2-Channel Relay ModuleSDR XTR+ Tiny Extended Range TCXO Based SDR & DVB T USB Stick (RTL2832U + E4000) with Antenna and Remote Control