Wirelessly Registering Button Press

Projects General Guidance
1

Hi everyone,

I'm working on a project where there is a user hitting a foot pedal, which wirelessly sends a signal to an Arduino that will move a servo to a predertimed angle and return the servo to its origin.

I believe the logic will be simple, however I'm wondering what the best way would be to wirelessly communicate from the foot pedal to the arduino. Perhaps using two Arduinos with Bluetooth modules? I'm new to Bluetooth communication so I'm not very certain where to turn.

Any guidance will be appreciated! :relaxed:

2

Use simple 433 MHz type Tx/Rx modules and VirtualWire library.

3

Is the foot pedal a simple digital switch ?
Anyway, here is some example code, again using radio modules, but of type NRF24L01, which can be adapted to transmit either analog or digital data. https://arduino-info.wikispaces.com/Nrf24L01-2.4GHz-ExampleSketches#js1

4

This Simple nRF24L01+ Tutorial may be of interest.

...R

5

Nrf51822 would be another low power choice with BLE. You can download example code from Nordicsemi website for what you mentioned.But the only thing I concerned is that when using nrf51822 to communicate with arduino. The nrf module need to handle the level shift if connected with arduino since it is 3.3v