WEEK 13

OUTPUT DEVICES


Assignment:
Add an output device to a microcontroller board you've designed
and programme it to do something

What I used for this assignment
Material:
- my Satshakit (see week 11)
- a stepper motor as output device
Softwares:
- ArduinoIDE, for the programming
Here are the output files for this assignment:
Week 13 programs files
Video

Here are the outputs for the 2nd Evaluation Round:
Week 13 - 2nd Round files (.png, .rml)
Week 13 - 2nd Round program
Output Devices 2nd Round Programming -- Video
Output Devices 2nd Round Powered by external battery (9V) -- Video



DETAILS

Programming my Satshakit
with a Stepper Motor as an Output

I reused the same Satshakit as the one from the Input Devices assignment, and probably I will also use the Satshakit in my final project.

wire connections:
28BYJ-48 Stepper Motor to ULN2003 driver;
ULN2003 driver to Satshakit;
Power and Serial provided by FTDI cable

here is the program
it simply pushes the number of steps to the motor via serial

schema of the ULN2003 driver

photo of the ULN2003 driver

Video



2ND ROUND

Doing more Output Devices

RGB led Niel's board

In order to improve my knowledge in output devices, I decided to redo the Niel's RGB led board.
All outputs files and programs are above in the summary table at the top of the page.

Here is the Neil's original RGB led board. See the related .png and .rml files in the ouputs at the top of the page.

Here are my boards, after milling and soldering
Notice the strange positionning of the LDO, it is because I didn't have the correct model, so I put it like this in order to respect pins gnd/VCCin/VCCout

Burning the board with my FabISP

Programming the board
Using same library "avr/io" than for Embedding Programming and Input Devices
Also using library "util/delay" to manage PWM

Video

Here is the program working! :-)

Programm pushed via FabISP
and powered by FabISP

Video

Here is the program working! :-)

And now powered by external Battery (9V) via the 5V LDO integrated on the board