Go Down

Topic: Cheap bluetooth remote controllers (Read 2175 times) previous topic - next topic


I have seen bluetooth dongles for as cheap as $US 3.  I am sure that I can buy them in bulk for as little as $1.50  3.7v and 5v relays are also cheap.  Can a bluetooth dongle be simply connected to a relay?  I have a couple of hobbies - hydroponics and raising fish -that would benefit greatly from being able to control lights, water pumps and drains remotely and with a timer.  I would not need to send a stream of data via bt but rather a signal that would contain the id for the bt device as well as a simple "on" and "off" command. 


No, you can't just connect a USB/Bluetooth dongle to a relay.  If it were that easy they wouldn't be charging $140 for one.

Send Bitcoin tips to: 1G2qoGwMRXx8az71DVP1E81jShxtbSh5Hp


The USB/Bluetooth dongle need driver from the PC to work, so it can't connect to relay directly.
You can use this JY-MCU HC-06 Bluetooth Wireless Serial Port Module with Attiny MCU to control a relay for less then $20

Go Up

Please enter a valid email to subscribe

Confirm your email address

We need to confirm your email address.
To complete the subscription, please click the link in the email we just sent you.

Thank you for subscribing!

via Egeo 16
Torino, 10131