9V Battery Cap to Alligator Connector Cable 12cm 3.9E These are Carbon Film Resistor

These are Carbon Film Resistor with a value of 180k ohm 1/4W and tolerance of ±5%

HC-12 module has a microcontroller that actually doesn€š¬€ž¢t have to be programmed by the user

2E resistors

RF working mode: superheterodyne reception

9V Battery Cap to Alligator Connector Cable 12cm 3.9E These are Carbon Film Resistor9V snap connectors with Alligator Clip are built to last longer and offer a simple connection from a 9v battery to a power device or circuit using Alligator Clip. High quality, with a secure battery connection and an Alligator Clip connector. The material used in the 9v Battery Connector + Crocodile Clip (Battery Connector Cap) is of the best quality. It is commonly used in project management. The 9V Battery Snap Connector with Power Plug allows you