Posted on February 24, 2019


UM66 is CMOS technology melody integrated circuit especially used in to give the output from speaker, when we reset the circuit UM66 will play the melody. The following schematic is for UM66 or BT66 musical IC. You need very few components to make this circuit. Pin configuration for UM66 is. Here is one listing from China for the UM66, and another one from France. Some IC become obsolete and may not be available in market.

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How to use variable resistors November 15, Building a circuit on a breadboard November 8, How to use Mhz RF transmitter and receiver modules with arduino June 14, This project is suitable for beginners as its circuit is very simple.


Here I have marked the pins of UM Tuesday, January 1, The beat generator is also a programmed divider which contains 15 available jm66.


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Home Questions Tags Users Unanswered. This is a simple project using the IC UM How to use the DIY clap switch September 16, Sometimes in resource shortage its good to change plan. Dark sensor on breadboard.

How to use UM66 or BT66 Musical IC | BuildCircuit – Electronics

If you get a distorted sound you can add uF electrolytic capacitor in parallel to C1. UM66 has an inbuilt beat and tone generator. SPI Module of Arduino. What can be done to strengthen the multiplier circuit? Post as a guest Name. It is designed for use in bells, telephones, toys etc. Note that there are some unscrupulous semiconductor vendors on eBay so be careful, I would always buy from somewhere like Digikey, Mouser, Farnell, etc if you can I had a quick look but couldn’t see anything particularly suitable You could quite easily make a similar circuit using a small micro, a timer or two, using discrete transistors, etc.

integrated circuit – Replace UM 66 IC – Electrical Engineering Stack Exchange

We have other Tone Generator circuits that you may like; Take a look: You can not reprogramme it. Dark sensor on breadboard September 8, BC transistor 3. This site uses cookies. I find only endless results, a lot of models of ICs who don’t even remote to UM UM66 is a 3 pin melody device.


Infrared sensor hm66 PWM. The melody will be available at pin 3 of UM66 and here it is amplified by using Q1 to drive the speaker.

How to use infrared based music transmitter and if. Assemble the circuit on a good quality common board. Auto-Detection l Bluetooth l Smart Multimeter.

Resistor R1 limits the base current of Q1 within the safe values. By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service. UM66T is a melody integrated circuit.

Is capacitor helps in sound suppression in this circuit? Hi,my name is Satish.