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WARNING: Always check your local law if you want to transmit something with AM! Sending on certain frequencies and thus blocking other licensed transmitters can be illegal. So if you want to try it then make sure that the transmission power is super low. In my example the transmitter was only capable of sending over a distance of around 2-3m.

Previous video: [ Ссылка ]
Walkie-Talkie nRF24 video: [ Ссылка ]
Walkie-Talkie RF Modules: [ Ссылка ]
555 Timer video: [ Ссылка ]
Voice-over Microphone video: [ Ссылка ]
Oscillator video: [ Ссылка ]

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More project information (pictures,.....) on Instructables: [ Ссылка ]
Parts list: (affiliate links)
555 Timer: [ Ссылка ]
Resistors: [ Ссылка ]
Capacitors: [ Ссылка ]
NE5532 OpAmp: [ Ссылка ]
Electret Mic: [ Ссылка ]
Perfboard: [ Ссылка ]
PCB Terminal: [ Ссылка ]
XR2206 Function Generator: [ Ссылка ]
TA7642 IC: [ Ссылка ]
100pF variable capacitor: [ Ссылка ]
Enamelled copper wire: [ Ссылка ]

In this project we will keep it simple when it comes to wireless audio communication. Instead of trying to use an nRF24 or RF modules, we will go back to the old days in which they used AM radios. I will show you how such amplitude modulation works and along the way show you how to build a super simple AM transmitter and receiver. Let's get started!

Thanks to KiWiCo for sponsoring this video.

Music:
2011 Lookalike by Bartlebeats

0:00 "Complicated" Wireless Audio
0:45 Simple AM Radio Solution
1:59 Intro
2:09 Theory AM
3:19 Transmitter AM 555 Timer (sounds terrible)
6:08 Transmitter AM XR2206 IC (sounds decent)
7:25 Receiver AM TA7642
9:53 KiWiCo Sponsor

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