Welcome to the Fab Lab “Hello World” blog site. Here we’re sharing results and experience making the “hello world” suite of circuits found at http://fab.cba.mit.edu/about/fab.

Make one yourself and post it here!

Hello World Circuits

serial output:

• hello.serial.45.cad
• hello.serial.45.asm
• hello.serial.45.hex
• hello.serial.45.c
• makefile

serial echo:

• hello.echo.45.cad
• hello.echo.45.asm
• hello.echo.45.c
• makefile
• hello.echo.44.cad
• hello.echo.44.asm

button:

• hello.button.45.cad
• hello.button.45.asm

light:

• hello.light.45.cad
• hello.light.45.asm
• hello.light.45.py

temperature:

• hello.temp.45.cad
• hello.temp.45.asm
• hello.temp.45.py

step response (resistance, capacitance, inductance, position, proximity, tilt):

• hello.step.45.cad
• hello.step.45.asm
• hello.step.45.py

microphone:

• hello.mic.45.cad
• hello.mic.45.asm
• hello.mic.45.py
• hello.mic.44.cad

RGB LED:

• hello.RGB.45.cad
• hello.RGB.45.asm

LED array:

• hello.array.44.cad
• hello.array.44.asm
• hello.array.44.2.cad (2 layer)

LCD:

• hello.LCD.44.cad
• hello.LCD.44.asm

video:

• hello.video.44.cad
• hello.video.44.asm

speaker:

• hello.speaker.45.cad
• hello.speaker.45.pwm.asm
• hello.speaker.45.wave.asm

DC motor:

• hello.H-bridge.44.cad
• hello.H-bridge.44.asm

stepper motor:

• hello.stepper.44.cad
• hello.stepper.44.full.asm
• hello.stepper.44.wave.asm
• hello.stepper.44.half.asm

<h3>old hello-worlds:</h3>

serial output, programming clip (hello)

• schematic: hello.sch
• PCB: hello.brd
• Gerber: hello.cmp hello.vinyl.cmp
• assembly code: hello.asm
• hex file: hello.hex

serial output, programming header (hello0)

serial I/O, programming clip (hello1)

• schematic
• PCB
• Gerber
• serial output
• serial echo

output: LED (hello2)

• schematic
• PCB
• serial output
• blink LED with serial output

input: step-response (hello3)

• schematic
• PCB
• serial output
• measure and send step-response curve
• receive and plot step-response curve

Efe: button+LED

• schematic
• PCB
• serial output
• blink the LED
• measure charging
• plot charging

A/D: light/sound/temperature (hello4)

• schematic
• PCB
• serial output
• measure A/D
• measure temperature
• plot readings

D/A: speaker (hello5)

• schematic
• PCB
• PWM
• wavetable synthesis

display: LCD (hello7)

• schematic
• PCB

display hello world:

• master processor
• slave processor

video: RS170 (hello8)

• schematic
• PCB
• display hello world

• RS170

motion: stepper (hello9)

• schematic
• PCB
• Gerber
• stepper

multiplexing: LED array (hello10)

• schematic
• PCB
• multiplexing