Open Hardware: Raspberry Pi, ESP32, Cutebot Pico:ed, Arduino
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Enhance Raspberry Pi Zero Functionality with PoE USB HUB HAT
Want to power up the Raspberry Pi Zero by ethernet cable and need to add some extra USB ports to it then PoE USB HUB HAT would be the best for you. This HUB comes with two USB Type-A and one USB Type-C ports along with the ethernet port. This HUB can add extra functionality to the Raspberry Pi Zero as one can connect the number of devices which will increase the number of applications for which it can be used.
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How to Legally Download Free ROMs for RetroPie
RetroPie is a gaming emulator that allows users to play different emulator games like PlayStation, NES, SNES, and so on. The aim of RetroPie is to provide retro gaming support for Raspberry Pi systems so that the user can use the device as a gaming machine. However, to play games on RetroPie, you should need a game ROM that needs to be put inside the RetroPie directory so that you can then play it on your device. To learn more about RetroPie you can check this article.
If you are looking for help on how you can download free ROMs for RetroPie, follow this article’s guidelines.
But, before moving toward the process, let’s first discuss ROMs.
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Is ESP32 Better than Arduino
Both Arduino and ESP32 are microcontroller-based boards that can take inputs and generate output accordingly. Both these boards are famous among students and researchers because they don’t need any extra hardware like CPU to process the information, one just needs a tiny board that can fit in your pocket and perform tasks easily. But a question comes to everyone’s mind is ESP32 better than Arduino.
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Interfacing MQ-2 Gas Sensor with ESP32 Using Arduino IDE
Sensors are an important part of designing IoT based projects as they feed the data to the system. Microcontroller based IoT boards gained popularity because of their ability to interface different sensors and upload data to the cloud or generate an emergency email.
The board we are talking about is ESP32 which due to its limitless feature helps users to interface multiple sensors. Gas sensor is among the widely used sensors with ESP32 which can detect fire eruption or gas leakage inside a room. Let’s find out the possible way of interfacing MQ-2 gas sensor with ESP32.
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ESP32 ADC - Read Analog Values with Arduino IDE
ADC (analog to digital converter) is an electronic circuit that comes with different microcontroller boards or integrated inside the microcontroller. ADC is used to convert the analog voltage from different sensors into digital form. Like Arduino, ESP32 also has an ADC which can read analog data. Let’s find out more about ESP32 ADC.
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Giveaway Week 2022 – Pico:ed Smart Cutebot Kit
The third prize of this year’s giveaway week comes courtesy of ELECFREAKS which offers a Cutebot Pico:ed kit based on the Pico:ed board with a Raspberry Pi RP2040 microcontroller and following BBC Micro:bit form factor. The kit also includes two high-speed motors to drive two wheels, ultrasonic & distance sensors, two RGB LED lights and clearance lamps on the bottom, two line-tracking probes, and an active buzzer used as a horn.
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Increase a robot arm’s payload capacity by relocating its wrist motors | Arduino Blog
o give an electric car more range, you need a bigger battery pack. But that adds weight, so you need bigger motors and more battery capacity to compensate. This creates a vicious cycle and robot arms are susceptible to a similar problem. A robot arm needs to lift its own weight in addition to whatever it picks up. Bigger motors to increase the payload capacity also increase weight, thereby decreasing the payload capacity. This video from RoTechnic describes how to sidestep that cycle with remote motors.
RoTechnic’s robot arm has six degrees of freedom (DoF): a rotating base, a shoulder joint, an elbow joint, a rotating wrist joint, a tilting wrist joint, and a rotating end effector. If the robot were a conventional design, all of those joints (except the first two) would require a motor that adds levered weight to lift. The weight of those motors would subtract from the amount that the arm could otherwise lift. But three of this robot’s motors sit on the table nearby so that it doesn’t need to lift them.