Embedded Files
This is my make-through for the week's assignment. Grab a cup of coffee!
PROCESS MAP
PROCESS MAP
BACKGROUND
BACKGROUND
to use sensors that produce an analog signal with microcontrollers we need the OP-amp device to convert from analog to digital, use the MOSFETs to drive high power components that need more than the microcontroller can provide, and use (multiplexers &shift register) to expand the inputs and outputs of microcontrollers
to use sensors that produce an analog signal with microcontrollers we need the OP-amp device to convert from analog to digital, use the MOSFETs to drive high power components that need more than the microcontroller can provide, and use (multiplexers &shift register) to expand the inputs and outputs of microcontrollers
in this assignment I will Design, fabricate, and solder an Input Module PCB (Op-amp and Multiplexer) and an Output Module PCB(MOSFET and Shift Register)), and control them with the ATTiny44 microcontroller board to control with the RGB led in the output module with the dip switch in the output module and to control a high-power led with a thermistor in the input board
in this assignment I will Design, fabricate, and solder an Input Module PCB (Op-amp and Multiplexer) and an Output Module PCB(MOSFET and Shift Register)), and control them with the ATTiny44 microcontroller board to control with the RGB led in the output module with the dip switch in the output module and to control a high-power led with a thermistor in the input board
OBJECTIVE #1:Designing & fabricating I/O PCBs
OBJECTIVE #1:Designing & fabricating I/O PCBs
Trial #1 (Successful): design I/O PCB
Trial #1 (Successful): design I/O PCB
by following the providing schematic and fount the right footprints I made the schematic and the routing for the two board and make the final png files for the CNC milling machine
fabrication files
fabrication files
soldring
soldring
OBJECTIVE #2: Dip switch &RGB
OBJECTIVE #2: Dip switch &RGB
Trial #1 (unSuccessful):
Trial #1 (unSuccessful):
- connect the 2 boards with the ATTINY44.
- wiring input board to the ATTINY44
S1 (pin 11) to pin 0
S2 (pin 10) to pin 1
S3 (pin 9) to pin 2
Mux out to pin 3
Vcc to 5V
GND to ground
- wiring output board to the ATTINY44
Serial Data to pin 6
Shift Clock to pin 7
Latch Clock to pin 8
Vcc to 5V
GND to ground
- the code
define the selectors, mux, i/p& o/p CLC
read the mux status high or low to determine the dip switch status
if mux is high - shift to 2 to turn the red light
if mux is low - shift to 0 turns off the red light
do the same for the green and blue and white
problem1: the RGB led is on all the time when the board connected to the source
problem1: the RGB led is on all the time when the board connected to the source
CONCLUSION
CONCLUSION
What I learned this week is...
More practice with design in Eagle and PCB.
More practice on soldering .
using Multiplexer.
using Shift Register.
Trial #1 (unSuccessful):
Trial #1 (unSuccessful):
Step 1: connect the 2 boards with the ATTINY44
Step 2: writing the code
Step 3:
Step 4:
Step 5:
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