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Printshield v1.0 for Arduino printbots [Git repo]

by carlosgs, published

Printshield v1.0 for Arduino printbots [Git repo] by carlosgs Jul 18, 2012

Description

Download (Git): **Now all the files are hosted in GitHub:** github.com/carlosgs/ArduSkybot/tree/master/Electronics
==

Circuit board that simplifies making Printbots based on Arduino UNO! :)

It is one-sided so anyone can make it easily.

Features:
-Two light sensors (LDR)
-One ultrasonic distance sensor
-Two buttons
-Four LEDs
-Four servo-motor connectors
-Compatible with CNY70 board (http://www.thingiverse.com/thing:26819)

Component values:
The cap is 1000uF 6.3V (between +5V and ground), LED resistors 330ohm, LDR resistors 33kohm

Recent Comments

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the gnboard doesnt really have the stuff Im really looking for honestly. I like having the sr-04 sensor slot in front like this version, so I just modified the pcb layout very slightly and broke the line heading from vin to the servos, and put two connectors, one for the batteries for the servos, and another for power to the arduino.

I didn't burn any servo, but you are right they are not properly powered.
Please check https://github.com/carlosgs/GN... for a newer version of this same concept shield.

from the look of it, it's feeding the dc in from the 9v to the servo motors, wouldnt that burn up most servos?

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Instructions

You can use one of this methods to make the PCB:
youtube.com/watch?v=QQupRXEqOz4
instructables.com/id/Toner-transfer-no-soak-high-quality-double-sided/ (this one didn't work for me, you should try it anyway...)

I have uploaded also the connection diagram so you can see the components :)

Modifications (will be added in v2.0)
- You should power the Arduino with at least 9V and place a capacitor in the 5V line when using servomotors (otherwise the board will reset due to voltage peaks).
- It is a good idea to add one diode in series with the power line for the servos, this will help minimize voltage peaks that affect the 5V line.

Uses:
- Arduino shield library: thingiverse.com/thing:9630
- Monolito library: iearobotics.com/wiki/index.php?title=Monolito

Designed with Kicad

Comments

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cae2100 on Jul 12, 2013 said:

from the look of it, it's feeding the dc in from the 9v to the servo motors, wouldnt that burn up most servos?

carlosgs on Jul 12, 2013 said:

I didn't burn any servo, but you are right they are not properly powered.
Please check https://github.com/carlosgs/GN... for a newer version of this same concept shield.

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