Hi all,
I'm building a kid MP3 player with a few buttons for my 2 years old son.
It's very simple: button pressed-> turn up -> play music -> auto shutoff.
For my first project I selected ready-made boards (with links):
LilyPad MP3: it is an arduino 3.3V with a MCP73831 3.7V Lipo charger...
I would like to use a wireless doorbell I have to control a latching ON/OFF Switch, I found this great video
My receiver circuit is slightly different as it has a CD4069 but I believe it won't matter as the wires going to speaker are used.
The schematic is not clear on the part where the 2...
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...
Hi there!
I've been given a group of circuit schematics for testing and I must measure the current and voltage thresholds on a Latching Current Limiter and Overhead voltage Protector respectively. I know how to simulate and measure currents and voltages in LTSPICE but something about the...
I'm working on a project for school, it's basically a IR controlled fan with 9V DC. Basically you press any button on a tv remote and the IR sensor ( TSOP 1838) picks up the signal and outputs it to the fan and the fan spins. Problem with this is I have to continuously keep a button pressed on...