MAX7219 LED Display Module 4-in-1 Dot Matrix STM8 Microcontroller Pd - Power Dissipation :

Pd - Power Dissipation  :  200 mW

HT12D  Specifications:

The sensitivity of this can be controlled by an onboard potentiometer and LM393 Comparator IC

you can either connect your 5V pin or 3

MAX7219 LED Display Module 4-in-1 Dot Matrix STM8 Microcontroller Pd - Power Dissipation :Display modules are widely used throughout the industry to show data or provide indications and warnings to the user. They make the interface user friendly even for non technical users, allowing easy control without needing an expert. A common challenge with LED displays is the high number of interfacing connections required, which can limit available pins for other modules. This MAX7219 Dot Matrix Module solves that problem by using the MAX7219 LED