Node.js Raspberry Pi - المكونات

من خلال ثقب الصمام

الصمام الثنائي الباعث للضوء (LED). LED هو الصمام الثنائي الذي ينبعث منه الضوء عند تطبيق الجهد عليه. في مثالنا ، نستخدم مؤشر LED من خلال الفتحة. لديهم دبوس موجب (يسمى الأنود) ، ودبوس سالب (يسمى الكاثود). يجب أن تشير الساق الأطول على مؤشر LED إلى الدبوس الموجب.

RGB LED

Light emitting diode (LED). An LED is a diode that emits light when a voltage is applied to it. An RGB LED has 4 pins. One for each color (R = Red, G = Green, and, B = Blue), and a common cathode/anode. This one LED can display the pure colors, or with PWD to modulate and mix colors.

Push Button

A push button is a type of switch. A switch makes or breaks a connection an an electric circuit.

Jumper Wire - Female to Male

Short pieces of wire called jumper wires are used to make connections. Female to Male jumper wires can be used to connect from the GPIO on the Raspberry Pi to the Breadboard.

Jumper Wire - Male to Male

Short pieces of wire called jumper wires are used to make connections. Male to Male jumper wires can be used to make connections between different parts of the Breadboard.

Resistor - 68 Ohm

Resistors are used to reduce current, adjust signal levels, etc. This is a 68 Ohm resistor.

Resistor - 220 Ohm

Resistors are used to reduce current, adjust signal levels, etc. This is a 220 Ohm resistor.

Resistor - 1k Ohm

Resistors are used to reduce current, adjust signal levels, etc. This is a 1k Ohm resistor.

onoff - GPIO access and interrupt detection with Node.js

documentation

Socket.IO - real-time bidirectional event-based communication

documentation

pigpio - wrapper for pigpio C library. Enables GPIO, PWM, servo control, state change notification and interrupt handling with Node.js

documentation