Walkie Talkie Using Arduino

I do not know the original source of the circuit. 3 converting the output voltage of a single lithium ion battery to 5v will increase the power consumption of the whole device. Diy arduino wristwatch walkie talkie step 1.

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We have already learned how to interface nrf24l01 with arduino by controlling a servo motor remotely.

Walkie talkie using arduino. I wanted to make this prototype relatively sleek. Program it onto a 168 or 328 based arduino uno duemilanove or diecimila not a mega or leonardo. If you have a microphone without proper amplification you may get a lot of noise. Connect headphones or an audio amplifier to digital pin 3.

We need a simple button circuit for calling the person on the other end. My setup is a bit of a hack because we re not supposed to draw much current from the 3v3 pin and we re connecting the nrf24 pins to 5v gpio. For this project the nrf24l01 rf module is chosen because it has several advantages over a digital communication medium. Create a simple walkie talkie using two arduinos and two nrf24 modules hoilett arduino walkie talkie instructable.

Install the talkie directory in your arduino libraries directory. Goldilocks analogue prototype 3 the actual walkie talkie functionality is really only a few lines of code but it is built on a foundation of analogue input sampling analogue output on the spi bus to the mcp4822 dac sample timing routines and the xbee digital radio platform. 2 we would like to design a pcb and aim to make the walkie talkie in the size of a credit card. Walkie talkie using nrf24l01 rf module.

I m using one that has a built in amplifier max9812 which gives a good output range for the arduino s analog pin. Restart the arduino software and pick one of the examples from the talkie section. Using talkie with an arduino include the talkie header file declare a variable of type talkie i call it voice below declare a variable for each synthesized speech you have i call it spah below and. The main component of this project is the nrf24l01 rf module and arduino uno which is the brain or processor.

Arduino uno and arduino nano are not selected in this project because 1 the rf module and bluetooth module we are using are all 3 3v powered. A walkie talkie is one example of using digital and analogue together to make a simple but very useful project. What microphone unit are you using.