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This is my make-through for the week's assignment. Grab a cup of coffee!
PROCESS MAP
PROCESS MAP
BACKGROUND
BACKGROUND
Because we're probably going to deal with more than one board, so we need a way to connect them and get them to communicate, so this week is about communication protocols
Because we're probably going to deal with more than one board, so we need a way to connect them and get them to communicate, so this week is about communication protocols
the task is to Program a Master microcontroller board to communicate with a Slave microcontroller board
the task is to Program a Master microcontroller board to communicate with a Slave microcontroller board
OBJECTIVE 1#UART communication
OBJECTIVE 1#UART communication
Trial #2 (successful): UART communication between 2 Arduino
Trial #2 (successful): UART communication between 2 Arduino
Step 1:
Step 1:
Make a circuit as per the given diagram.
Connect both the RX and TX pins of Arduino vice versa (first Arduino’s TX pin to another’s RX pin and first Arduino’s RX pin to another’s TX pin)
common the ground pin of both Arduino.
3- uploaded both Master and Slave codes using USBasp
3- uploaded both Master and Slave codes using USBasp
step2 :
step2 :
There are two codes for two Arduino boards. One for the master and one for the slave
4-connect the power to the two boards and test
4-connect the power to the two boards and test
Successful UART comm video.mp4OBJECTIVE #2: SPI communication
OBJECTIVE #2: SPI communication
Trial 2# (successful): spi communication
Trial 2# (successful): spi communication
For this assignment, I used 2 boards the Atmega board as master and the Arduino as a slave.
1- edited the code for the slave so it works with Arduino
1- edited the code for the slave so it works with Arduino
The Master Code
include the library SPI.h
define the slave select pin and the switch
the void loop is switching between two characters sent to the slave with a 1000-millisecond delay in between.
The slave code:
include the library SPI.h
define the slave select pin and the led
define s_recieve which saved received data
the void loop check if the condition is done to change the LED state according to the sent character
2-connect the two boards to communicate with SPI.
2-connect the two boards to communicate with SPI.
[ 4 connections (MOSI, MISO, SCK and CS). and grounds must be common.]
connect the led on the pin 7 on the Arduino
connect the led on the pin 7 on the Arduino
3- uploaded both Master and Slave codes using USBasp
3- uploaded both Master and Slave codes using USBasp
4-connect the power to the two boards and test
4-connect the power to the two boards and test
VID_20210220_140756.mp4
CONCLUSION
CONCLUSION
What I learned this week is...
the types of communications between electronic boards [serial, parallel ].
types of serial communication
the UART communication protocol
the I2C communication protocol
the SPI communication protocol
communicate between boards using UART and ISP
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