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wireless 8 buttons project

MrDEB

Well-Known Member
before I get off on the wrong track, am researching best method to detect 8 different buttons wireless.
SETUP = 8 players have one button and LED or one lighted LED push button tactile switch.
when a player's light comes on it's their turn to play. The Player then presses their button and LED shuts off and the next player's light comes on. Repeat sequence for all 8 players.
Thinking a shift register but the wireless set up?
8 separate transmitters/ receivers? seems chaotic or overkill?
 

AnalogKid

Well-Known Member
Most Helpful Member
To be clear, you want to have eight battery-powered, bidirectional wireless devices. Each one can receive an enable command to turn a single LED on and turn on a transmitter. The device then transmits continuously a signal related to switch status. When the switch closes, the system controller detects this, sends a command to turn off both the LED and the transmitter, and sends an enable command to the next device.

Something like that?

If so, then there have to be some brains somewhere. The 8 remote transmitters can all be on the same channel sending the same code since only one at a time is enabled. But enabling them is the same as addressing memory locations. You can have the 8 receivers tuned to 8 different channels, or have only one channel and send 8 different address codes. This probably means a small microcontroller in the system controller.

- OR -

You could put a CD4017 Johnson Counter (a form of a decoded shift register) in each remote, and send only an increment signal to all remotes at the same time. A jumper in each remote would select it. In this case the signalling would be very simple (no microcontrollers required on either end) but they could get out of sync if the reception isn't perfect for all units.

ak
 
Last edited:

danadak

Active Member
Mesh network (with a host in it) -


Cheap, ~ $2 for the ESP8266 / node



Regards, Dana.
 

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