Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
The thing is, I was trying to regulate a 220V-9V to 5 volt. I did it though. Everything was right.I was trying to make a dark sensor with NOT gate
()
The settings are good. But it wasn't working fine with the AC to DC adapter.( It is working fine with a battery like the video). The thing is...
I was trying to make a LED flasher with 555 IC. Then I thought how about I set a transformer with the output-ground pins. And I also reduced the resistance between 7 and 6 pin. And I am getting a 31V AC output from my transformer output panel. Looks like it is possible to make an inverter with...
After a massive crash on LM386 I moved on to TDA7052. This is a very good IC so far. I want to make sound boxes and sell them. That is why I want to know more info than datasheet if available. I have some questions though:
1. How to secure the connection to reduce noise?
2. How to protect the IC...
Hello everyone,
A brother from my hometown told me to make a mini amplifier that can pull the power out from a USB charger(or PC USB).
I happened to working on a logic gate IC and burned the IC while using a USB(power bank) charger. I want to know is it safe to use a 5V-1A charger to power the...
I have a 8ohm 30W speaker and lm386.
I don't know much about the internal structures of lm386. I want only bass sounds(frequencies) in that speaker. How can I do that?
And I also want to know how to smoothen the high frequency sounds?
Hi Guys,
I'm hoping someone can help me fine the right product as I don't do much with electronics/pneumatics in my design work. Basically I have a very low pressure air pump which needs to feed into a manifold with 4 or 5 exit ports (ideally 5). Each manifold needs to be electronically...
Im attempting to use Arduino connected with a GSM shield connected to power grid.
The objective is to deploy the unit all over the city so that data can be received in almost real time so that power status can be known.
I need to understand what chip can I connect with my Arduino so that I...
Hi,
I am new to this forum and really don't know how it works. I have a request - I am looking for a pulse generator that generates 1 pulse for every 2 pulses it receives and also boost the current from 150 mA to 300 mA. Is there any off the shelf circuit that I can buy ?.
The pulses generated...
2003 Fiesta 1.25: had problems with the fiesta overheating even though temp gauge says normal temp on dashboard. After box ticking all the usual culprits (relays, fuses, isolating fan to test it works which it does etc) found out it's the ECU ignoring any messages from the temperature sensor...
Dear fellow retro computer lovers, I want to show you my latest project that just went live on Kickstarter:
https://www.kickstarter.com/projects/albertgajsak/makerbuino-a-diy-game-console?ref=category_location
MAKERbuino is a retro gaming device you can build yourself. It's purpose is to...
I am a firmware engineer seeking an assistant/consultant to help with the development of a radio tracking device (see the following
https://www.google.us/patents/US20100149027 patent document or just search US20100149027) that is based on several different radio technologies including GPS, RFID...
I bought recently a brand new LG 29UM58 IPS 29 inches ultrawide from amazon. When I recieved it, I notice that came with a 110v power adapter so I bought a 7 bucks converter 220v to 110... the monitor started, and shows gray screen saying "No input connected" when I connected the HDMI cable, the...
Hi, I'm using pic24fj64gb002 for my project. In this project i want to read the output(values) from the Ignition and AC of a car. That is i want to know whether the ignition and ac of the car is ON or OFF. How can i do this and what are the required components?
The output of this should be...
Hey Guys, im making my own tilt servo bracket similar to the one in the picture attached, as part of a school project for an adjustable wing for my whole miniature go kart, but it is due in a few days and i do not own a servo controller/tester or have the time to buy one in time. So im thinking...
Hey! I just registred here several moments ago because I am currently working on my own project and I've got a lot of questions on electronics, sensors, gadgets right now because the project requires a lot of knowledge in it but unfortunately I don't have, so I came here. Let's move on the...
Hi, I am currently working on a passive rectifier circuit for an implantable device. I was wondering if anyone could tell me the equivalent impedence/resistance before the diodes in the circuit i.e. nodes x, y in the attached image. Is there an expression that can be stated for all rectifiers...
I've build up the tippical application circuit for TDA7293 as the datasheet puts, but when I power it on, it oscillates! I tried putting an RC network at output as the modilar application shows ( in the same TDA7293' datasheet), but it did not fixed the problem, it still oscillates... does...
I have a hex file
:020000040000FA
:0A0000004028000000000000D42892
:1000800064008B13A020C73095003C308C000330F7
:1000900096004A3099009101A3209701A6208C0177
:1000A0009E208B01AC20AC209120A9209116111626
:1000B0009301A02017149E20B401B601B501A92018
:1000C00093019E208B170B168B15640063000000B4...
My **broken link removed** stopped working. It blinks white (and then black) when plugged in, regardless of which type of which input plug I use. I know the monitor is the problem because my other monitor, which is the same make & model, works perfectly fine with the same inputs (knock on wood)...
Hello, I have got my hands on one of my old IPhone 4 devices, an A1349 model. It had been so long since I used it, that when I found it, I was interested in getting it back up and working. However, I forgot the password and after looking online I found that you could factory reset the phone...
I've been involved in doing electronics as a hobby from a young age. For a long time I was away from it with a non electronics career and family commitments. Due to Ill health I had to retire prematurely, and consequently have taken up the treasured hobby with gusto and eyes wide open. There...
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