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How to build your own nrf24L01+pa+lna module

Introduction Nrf24L01 based module has been very popular, because it’s easy to implement in wireless communication projects. The module could be found under 1$ with a PCB printed version, or monopole...

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Bluetooth Controlled Robotic car

I have just started with the youtube channel, so I decided to make a Bluetooth controlled robotic car. As am an electronics engineer I have knowledge about electronics. but I don't know how to build a...

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School Study: Hudson River "The River that Flows Both Ways"

Introduction My daughter’s school studied the Hudson River in New York all year long and always brought home new and interesting facts of the river. One interesting fact was how the river "flowed both...

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The less known alternate of SN7474

While the 3-d time "re-inventing" the RS-D Trigger i came up with this 1-st • here's the performance comparison (both perform the R/S functions at the same speed - there's some difference in D-Latch...

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circuit anomally figured out.

OK here is the situation, I'm experimenting with designing a transistor PWM circuit with current feedback to control motor torque. Everything is working properly, So now I am ready to start measuring...

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Setup the Digi XBee3 Cellular Module & MicroPython

As part of our project Hudson River "The River that Flows Both Ways" with my daughter, let's setup our communications device: the Digi XBee3 Cellular Module. Spoiler: Now that we got to play with the...

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ne555 additive waves

Greetings fellows!! It has been a long dream of mine to build my own analog synthetizer, and now that i have got the time, i want to finally make one! I am thinking about building a fairly simple one,...

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Robot guard

Introduction This project is about a robot guarding a land property (and also scanning the field for molehills, fallen trees and other anomalies). To do this, the robot will use ultrasonic sensors to...

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Which is easier to learn Python or C?

Many programming languages are used today, some are used, and some have gone obsolete. In the last few years, the programming scenario has changed drastically as developers and programmers are...

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A variable Switching power supply using LM2576

Switching power supplies are known for high efficiency. An adjustable voltage/current supply is an interesting tool, which can be used in many applications such as a Lithium-ion/Lead-acid/NiCD-NiMH...

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Frankentrains, 1950s Model Trains updated

I have a design to add digitally controlled smoke to model trains from the 1950s. I have used Fusion 360 to design a .STL model of the Smoke Housing that fits in these American Flyer Trains and provide...

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12vdc led lighting circuit

using a 120/12vac transformer and a rectifier I have created an LED strip lighting circuit. Everything is working fine but is there anything else I should add to this circuit (other than a fuse) to...

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building cheap alligator clip extensions for Multimeter

I am going on vacation this week, so in an effort to save money and measure current for my projects too, I have bought 2 dollar alligator clips from Home Depot and made extensions for my multimeter:...

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Converting wheel chair to four wheel drive

chair is driven by two wheels, independent motors. I wish to add a third( single motor transaxle)Concept is small computer to” listen” in to the signals to the original motors, select the signal from...

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Simulate and evaluate a low power multi-stage operational amplifier to drive...

The amplifier must achieve the following specifications: 1. AC input signal range = 10 mVpeak – 20 mVpeak 2. Power supply = 1.8 V 3. Total power consumption < 200 μW 4. Gain ~ 33 dB 5. Cut off...

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