SPI using ICSP pins on UNO

Projects Networking, Protocols, and Devices
1

For connecting 2 arduino UNO to display>> hello world(Master) and bye world(Slave)

  1. Can i use those ICSP pins for the same ??

  2. HOW?

  3. if i use those ICSP pins then will my I/O pins(11 12 13) i use for miso mosi ss cs be free to do another task ?

Please help i m new to SPI and i did search on youtube and blogs but these queries did'nt got answered anywhere !!

PLEASE HELP

2

There's no magic to the ICSP pins. There is absolutely no difference between connecting something to the ICSP pins or pins 11, 12, 13 on an Uno. They are connected together.

Celestial_96:
3. if i use those ICSP pins then will my I/O pins(11 12 13) i use for miso mosi ss cs be free to do another task ?

Not in the way you're thinking. However, keep in mind that SPI is a bus. The idea is that you can connect multiple SPI devices to the same MISO, MOSI, SCK pins but just have a different CS pin for each device. But that's only for SPI devices. You can't just go using those pins for anything you want while they're also being used for SPI.

3

Celestial_96:
For connecting 2 arduino UNO to display>> hello world(Master) and bye world(Slave)

  1. Can i use those ICSP pins for the same ??

  2. HOW?

  3. if i use those ICSP pins then will my I/O pins(11 12 13) i use for miso mosi ss cs be free to do another task ?

Please help i m new to SPI and i did search on youtube and blogs but these queries did'nt got answered anywhere !!

PLEASE HELP

  1. yes
  2. google a schema. connect SCK to SCK, MISO to MISO, MOSI to MOSI and ground on the ICSP header and connect pin 10 to pin 10 for slave select
  3. no

use the SPI examples available in IDE