MQTT (Message Queuing Telemetry Transport) Protocol is a M2M (Machine to Machine) lightweight messaging protocol widely used in IOT (Internet of Things) that provides a resource constrained network clients. Almost IOT cloud platform support MQTT protocol to send and receive
Wiring IR (Infrared) Obstacle Avoidance Sensor with Raspberry Pi
IR (Infrared) obstacle avoidance Sensor module uses infrared reflection principle to detect obstacle. This sensor has a high precision components paired of infrared transmitter and receiver. The transmitter tubes emit a certain frequency of infrared when detecting a direction or
Wiring Water Level, Rainfall, Leakage, Flood Meter Sensor with Arduino Microcontroller
Another illustration how to wire and build a simple water level, rainfall, leakage & water overflow detection. As you can see the first diagram below its uses a water sensor module which can be plug easily or build your own
Wiring TCRT5000 IR Tracking Sensor with Raspberry Pi
IR Light reflection switch, useful for obstacle avoidance or line following, for obstacle avoidance you can place this module in front of the sender /receive diodes that will cause the out pin to be pulled low at distance of 1cm.
Wiring MPU 6050 MEMS Accelerometer GYRO on RPI
Another illustration that demonstrate how to use MPU6050 on Raspberry Pi. The MPU 6050 sensor board contains a MEMS ACCELEROMETER and MEMS GYRO a single chip that provide a very accurate data, as it contains 16bits analog to digital conversion
Wiring the 360 Rotary Encoder on C Code & Python
Another illustration that demonstrate using rotary encoder. Rotary encoder is an electro mechanical device that convert the angular position or a motion of a shaft or axle to analog or digital code. Rotary encoder are usually used at the side
Wiring the Passive & Active Buzzer with Raspberry Pi
Another illustration that demonstrate how to use the buzzer both passive and active. The difference between an active and passive is. The active buzzer has a built in oscillating source that will make a sound when amplifying a power compare
Wiring 3014/3020/2835/5050/ Analog LED Strip with MCU
Wiring the analog LED Strip is not so difficult compare to addressable LED Strip. To control an analog LED Strip using popular Microcontroller like Arduino you need to add a power transistor to the circuit if you are new to
Wiring the I2C / SPI OLED Monochrome Display with RPI
Another guide for wiring the OLED 128×64 Display Monochrome on Raspberry Pi. These display module has only 0.96” diagonal made of 128×64 OLED pixels, this module it works without backlight can be visible in the dark environment, and OLED display
Wiring Single Channel Relay with Raspberry Pi on C/Python
Another illustration how to wire the single channel relay with Raspberry Pi. Relays are suitable for driving high Power AC/DC electrical equipment such as home appliances, light bulbs, motors, etc. Mostly popular in industrial and automotive use for automation. By
Wiring The AX1838HS / VS1838 / NEC-IR 38K IR on Raspberry Pi
Another illustration demonstrating how IR Emission works on Raspberry Pi, for introduction how IR Emission works please refer to this link. IR (Infrared Receiver) is a device / component which receives IR signals and can independently receive IR rays and
Wiring Push Button with RPI Driven by C-Code and Python
Push buttons are simple switch mechanism for controlling some aspect of a machine or a process. Buttons are typically made out of plastics, metal, carbons or rubber. The surface is usually flat or shaped to accommodate the human finger or