TECH KEEDA

Interfacing GPS Module with Raspberry Pi 3 🌍 Interfacing GPS Module with Raspberry Pi 3 🌍 Global Positioning System (GPS) modules help us get location data like latitude, longitude, speed, altitude, and more! Let's learn how to connect a GPS module (like NEO-6M) to Raspberry Pi 3 and read real-time location. 🛰️📡 🔧 Components Required Component Quantity Raspberry Pi 3 1 GPS Module (NEO-6M) 1 Jumper Wires 4 USB to TTL Converter (Optional) 1 🔌 GPS Module to Pi Connections GPS Pin Raspberry Pi Pin Pin Number VCC 3.3V / 5V Pin 1 or 4 GND Ground Pin 6 TX GPIO15 (RXD) Pin 10 RX GPIO14 (TXD) Pin 8 Figure: GPS Module connected to Raspberry Pi 3 ⚙️ Enable Serial Interface Run: sudo raspi-config Go to Interfacing Options > Serial Disable shell access over serial and enable serial hardware Reboot your Raspberry Pi 📦 Install Required Packages...

Interfacing Load Cell with Raspberry Pi 3 (via HX711) ⚖️ Interfacing Load Cell with Raspberry Pi 3 (via HX711) ⚖️ A load cell is a transducer that converts force (weight) into an electrical signal. The HX711 is a precision 24-bit analog-to-digital converter (ADC) designed for weigh scales. Today we’ll connect a load cell to Raspberry Pi 3 using the HX711 module. 🧪 🔧 Components Required Component Quantity Raspberry Pi 3 1 Load Cell 1 HX711 Module 1 Jumper Wires 6 Breadboard (optional) 1 🔌 Pin Connections HX711 Pin Raspberry Pi Pin Pin Number VCC 5V Pin 2 GND Ground Pin 6 DT GPIO 5 Pin 29 SCK GPIO 6 Pin 31 Figure: Load Cell connected to Raspberry Pi 3 via HX711 💻 Python Code from hx711 import HX711 import RPi.GPIO as GPIO import time hx = HX711(dout_pin=5, pd_sck_pin=6) hx.set_reading_format("MSB", "MSB") hx.set_reference_unit(1) hx.reset()...

Interfacing Color Sensor (TCS3200) with Raspberry Pi 3 🎨 Interfacing Color Sensor (TCS3200) with Raspberry Pi 3 🎨 The TCS3200 color sensor can detect various colors using its array of photodiodes and filters. Let’s interface it with Raspberry Pi 3 and detect different object colors! 🌈 🔧 Components Required Component Quantity Raspberry Pi 3 1 TCS3200 Color Sensor 1 Jumper Wires 8 🔌 Pin Connections Sensor Pin Raspberry Pi Pin Pin Number VCC 3.3V Pin 1 GND Ground Pin 6 S0 GPIO 17 Pin 11 S1 GPIO 27 Pin 13 S2 GPIO 22 Pin 15 S3 GPIO 23 Pin 16 OUT GPIO 24 Pin 18 Figure: TCS3200 Color Sensor connected to Raspberry Pi 3 💻 Python Code import RPi.GPIO as GPIO import time # Set up GPIO pins for S0-S3 and OUT GPIO.setmode(GPIO.BCM) GPIO.setup(17, GPIO.OUT) GPIO.setup(27, GPIO.OUT) GPIO.setup(22, GPIO.OUT) GPIO.setup(23, GPIO.OUT) GPIO.setup(24, GPIO.IN) GPIO.output(...

Interfacing pH Sensor with Raspberry Pi 3 🌿 Interfacing pH Sensor with Raspberry Pi 3 🌿 pH sensors help us monitor the acidity or alkalinity of water and soil. This guide explains how to interface a pH sensor (via MCP3008 ADC) with Raspberry Pi 3 for real-time monitoring. 🧪🌱 🔧 Components Required Component Quantity Raspberry Pi 3 1 pH Sensor 1 MCP3008 ADC 1 Jumper Wires Several Breadboard 1 🔌 Pin Connections MCP3008 Pin Connection Raspberry Pi Pin VDD, VREF 3.3V Pin 1 AGND, DGND GND Pin 6 CH0 pH Sensor Output - DIN MOSI GPIO10 (Pin 19) DOUT MISO GPIO9 (Pin 21) CLK Clock GPIO11 (Pin 23) CS Chip Select GPIO8 (Pin 24) Figure: pH Sensor interfaced with Raspberry Pi 3 using MCP3008 💻 Python Code import spidev import time spi = spidev.SpiDev() spi.open(0, 0) spi.max_speed_hz = 1350000 def read_channel(channel): adc = spi.xfer2([1, (8 + channel...

Interfacing Joystick Module with Raspberry Pi 3 🎮 Interfacing Joystick Module with Raspberry Pi 3 🎮 A joystick module is a fun way to capture directional input using two potentiometers and a switch. With Raspberry Pi 3, it’s great for games, robot control, and UI navigation! 🕹️ 🔧 Components Required Component Quantity Raspberry Pi 3 1 Joystick Module (Analog) 1 ADC MCP3008 1 Jumper Wires Multiple 🔌 Pin Connections The joystick gives analog values. Since RPi doesn't support analog input, we use MCP3008 ADC. MCP3008 Pin RPi Pin Joystick Channel CH0 Joystick VRx X-axis CH1 Joystick VRy Y-axis DOUT GPIO 9 (MISO) - DIN GPIO 10 (MOSI) - CLK GPIO 11 (SCLK) - CS GPIO 8 (CE0) - VDD/VREF 3.3V - AGND/DGND GND - Figure: Joystick interfaced using MCP3008 to Raspberry Pi 3 💻 Python Code import spidev import time spi = spidev.SpiDev() spi.open(0, 0) sp...

Interfacing RFID Reader (RC522) with Raspberry Pi 3 🪪 Interfacing RFID Reader (RC522) with Raspberry Pi 3 🪪 The RC522 is a widely used RFID reader for 13.56 MHz tags. With a Raspberry Pi 3, we can use it to identify and authenticate users using RFID cards. 🧾 🔧 Components Required Component Quantity Raspberry Pi 3 1 RC522 RFID Reader 1 RFID Tags/Cards 1+ Jumper Wires 7 🔌 Pin Connections RFID Pin Raspberry Pi Pin Pin Number SDA GPIO 8 (CE0) Pin 24 SCK GPIO 11 (SCLK) Pin 23 MOSI GPIO 10 (MOSI) Pin 19 MISO GPIO 9 (MISO) Pin 21 IRQ Not Connected - GND Ground Pin 6 3.3V 3.3V Pin 1 Figure: RFID Reader RC522 connected to Raspberry Pi 3 💻 Python Code # Install library # git clone https://github.com/pimylifeup/MFRC522-python.git import RPi.GPIO as GPIO from mfrc522 import SimpleMFRC522 reader = SimpleMFRC522() try: print("Place your tag...") ...

MQ-135 Sensor with Raspberry Pi 3 🎯 Objective In this project, we will use the MQ-135 Air Quality Sensor with Raspberry Pi 3 to monitor air pollution levels. This sensor is often used in indoor air quality systems. 🧰 Components Required Component Quantity Raspberry Pi 3 1 MQ-135 Air Quality Sensor 1 MCP3008 ADC Module 1 Breadboard 1 Jumper Wires As needed Power Supply 1 💡 MQ-135 provides analog output. RPi needs MCP3008 ADC to convert analog to digital. ⚡ Circuit Connections Sensor to MCP3008: From (MQ-135) To VCC 5V (RPi3) GND GND (RPi3) AOUT CH1 (MCP3008) MCP3008 to RPi3: MCP3008 Pin RPi3 GPIO VDD, VREF 3.3V AGND, DGND GND CLK GPIO11 DOUT GPIO9 DIN GPIO10 CS GPIO8 🧠 Python Code import spidev import time spi = spidev.SpiDev() spi.open(0, 0) spi.max_speed_hz = 1350000 def read_channel(channel): adc = spi.xfer2([1, (8 + channel) << 4, 0]) data = ((adc[1] & 3) << 8) + ...

🎥 Video Credit: Official video by Boston Dynamics , embedded from their YouTube channel. Used here for educational and informational purposes only. 🌟 Introducing HD Atlas The HD Atlas robot, developed by Boston Dynamics , represents a significant leap in humanoid robotics. Designed to navigate complex environments and perform dynamic tasks, HD Atlas showcases the pinnacle of robotic agility and control. 🔍 Key Features of HD Atlas 🦿 Advanced Mobility HD Atlas is equipped with 28 hydraulic joints, allowing for a wide range of movements, including walking, running, jumping, and even backflips. This mobility enables the robot to traverse challenging terrains and perform tasks that require high agility. QVIRO 🧠 Intelligent Control Systems Utilizing advanced control algorithms, HD Atlas can process sensory information in real-time, adjusting its movements to maintain balance and adapt to new situations. This intelligence is crucial for tasks that involve dynamic intera...

📽️ Video Credit: Official video by 1X Technologies, via their YouTube channel . Used here for educational and informational purposes. 🌟 Meet NEO Gamma — The Friendly Android for Everyday Life In a world increasingly influenced by artificial intelligence and robotics, NEO Gamma stands out as one of the most human-like and practical humanoid robots ever introduced for real-world household use . Developed by 1X Technologies , a robotics company based in Norway , NEO Gamma merges cutting-edge AI with domestic functionality , wrapped in a warm, sweater-wearing exterior that makes it feel right at home—literally. 🧠 What Makes NEO Gamma Special? Unlike many humanoid robots that are confined to labs or tech showcases, NEO Gamma is built to function in everyday environments like homes and offices. Here’s what makes it a game-changer: 👕 1. Human-Friendly Design NEO Gamma’s soft, human-like appearance —complete with a sweater—sets it apart from the cold, mechanical look of traditional ro...

🎥 Video Credit: Official video by Engineered Arts, shared via their YouTube channel . Used here for educational and informational purposes. 🌟 What is Ameca? Meet Ameca , the most lifelike humanoid robot ever created. Developed by UK-based company Engineered Arts , Ameca is designed to be the ultimate platform for human-robot interaction . With ultra-realistic facial expressions , fluid movement, and integrated AI capabilities, Ameca has captured the attention of researchers, engineers, and the general public worldwide. Often referred to as the "face of the future" , Ameca blends mechanical precision with emotional expression, setting a new standard in robotic communication and social AI interaction . 🧠 Key Features of the Ameca Robot 👁️ Hyper-Realistic Facial Expressions Ameca can display a full range of human emotions through micro-controlled facial motors. From surprise to curiosity, its ability to mirror human expressions is uncanny. 🗣️ AI Integration Ameca i...

 Video Credit: Unitree Robotics via YouTube 🚀 What is the Unitree G1? The Unitree G1 is a revolutionary bionic humanoid robot developed by Unitree Robotics , a company known for pushing boundaries in quadruped and now bipedal robotic systems. Unveiled in 2024, the G1 represents a new era of affordable humanoid agents , combining agility , artificial intelligence , and human-like motion —all at a price point significantly lower than traditional humanoid robots. While many humanoid robots remain in the prototype or ultra-premium category, the G1 is aimed at developers, researchers, educators , and robotics enthusiasts , opening up new possibilities for real-world applications. 🧠 Key Features of Unitree G1 🤖 1. Human-Like Movement The G1 mimics human motion using bipedal locomotion , advanced balance algorithms, and multi-joint coordination . It can walk, balance, squat, and even gesture with human-like fluidity. 🦾 2. Powerful Actuators The robot is equipped with high...

🔹 Overview The KY-037 is a high-sensitivity sound detection sensor that can detect noise levels in the environment. It provides both analog and digital outputs. In this tutorial, we’ll interface the digital output of KY-037 with Raspberry Pi 3 Model B+ (without using an ADC like MCP3008) and detect sound events.

 💻 Introduction A servo motor is widely used in robotics and automation projects. It allows precise control over rotation. In this tutorial, we will learn how to interface a servo motor with Raspberry Pi 3 B+ using Python . What will you learn? How a servo motor works Wiring the servo with RPi 3 B+ Writing Python code to control the servo 🛠 Components Required           Component Quantity           Raspberry Pi 3 B+                1           SG90 Servo Motor           1           Jumper Wires           3           External 5V Power Supply (Optional)           1 🛠 Circuit Diagram & Connection :  Connect the servo motor to Raspberry Pi as follows:...