Sagacity61
New Member
Hi all
I'm starting a project where I have 8 rooms which require service attention.
Using an RF link, a room push button signals to a central store which receives the room number requesting help on a single 7 segment display.
There are many ways of achieving this simple task, but currently I'm thinking the simplest way is for each room to send a pulse of differing duration.
The base station measures the length of the pulse, detects the room number and outputs the number to a 7 seg display via a BCD to 7seg decoder.
This can be done using 08Ms.
A colleague argues that it's simpler to generate ascii data from the room transmitter (RF link) and directly drive the 7seg display using 18Ms
This seems like overkill to me.
Any input from members or links to previous relevant threads/posts ?
Ta
I'm starting a project where I have 8 rooms which require service attention.
Using an RF link, a room push button signals to a central store which receives the room number requesting help on a single 7 segment display.
There are many ways of achieving this simple task, but currently I'm thinking the simplest way is for each room to send a pulse of differing duration.
The base station measures the length of the pulse, detects the room number and outputs the number to a 7 seg display via a BCD to 7seg decoder.
This can be done using 08Ms.
A colleague argues that it's simpler to generate ascii data from the room transmitter (RF link) and directly drive the 7seg display using 18Ms
This seems like overkill to me.
Any input from members or links to previous relevant threads/posts ?
Ta