New! Pixy for LEGO Mindstorms Fast vision sensor for LEGO robotics Easily “teach” Pixy objects to track Connects directly to NXT or EV3 brick Pixy (CMUcam5) Fast vision sensor for robotics Easily “teach” Pixy objects to track Connects directly to Arduino Pan/Tilt Kit for Pixy Dual servos provide X-Y movement Great “Hello world” demo for …
Based on Makeblock open platform, mDrawBot is a transformable drawing robot kit that integrates mechanics, electronics, software, and art. It can be assembled into four forms: mScara(Cylindrical Coordinates Robotic Arm), mSpider(Wall-Drawing Machine), mEggBot(Egg-Painting Robot), mCar(Drawing Car).
Based on Makeblock open platform, mDrawBot is a transformable drawing robot kit that integrates mechanics and electronics via the easy-to-use software mDraw.
mScara (Cylindrical Coordinates Robotic Arm)
mSpider (Wall-Drawing Machine)
mEggBot (Egg-Painting Robot)
mCar (Drawing Car).
This library allows you to control unipolar or bipolar stepper motors. To use it you will need a stepper motor, and the appropriate hardware to control it. For more on that, see Tom Igoe’s notes on steppers.
Detailed ZYLtech CNC Shield Instructions, including “First Run”, Current Limit Adjustment for Stepper Driver, Jumper Settings, and Motor Wiring.
Control Servos + PWM devices using this 16 channel PWM Expansion Board. PCA9685
When you run out of PWM Arduino-pins or are on a Raspberry Pi that doesn’t have PWM capability. With this PWM Expansion Board you can control up to 16 PWM driven devices from via 2 I2C pins. Can also be daisy-chained to give you up to 992 PWM outputs.
- I2C controlled PWM/Servo driver board
- Clock on board
- Operating Voltage: 3.3V – 6V
- 6 I2C Address Select Pins
- Max Daisy-chaining: 62 boards for a total of 992 PWM outputs
- Max PWM frequency: 1.6 kHz
- Resolution: 12 bit
- Configurable Output (push-pull or open-drain)
- Output Enable (OE) allows you to turn off all outputs at once
- Onboard Features:
- Polarity Protection
- Power Indicator LED
- Optional capacitor solder point for smoothing
- Address Select Jumpers
Grbl is a no-compromise, high performance, low cost alternative to parallel-port-based motion control for CNC milling. It will run on a vanilla Arduino (Duemillanove/Uno) as long as it sports an Atmega 328.
The controller is written in highly optimized C utilizing every clever feature of the AVR-chips to achieve precise timing and asynchronous operation. It is able to maintain up to 30kHz of stable, jitter free control pulses.
It accepts standards-compliant g-code and has been tested with the output of several CAM tools with no problems. Arcs, circles and helical motion are fully supported, as well as, all other primary g-code commands. Macro functions, variables, and most canned cycles are not supported, but we think GUIs can do a much better job at translating them into straight g-code anyhow.
Grbl includes full acceleration management with look ahead. That means the controller will look up to 18 motions into the future and plan its velocities ahead to deliver smooth acceleration and jerk-free cornering.
- GRBL 0.8c compatible. (Open source firmware that runs on an Arduino UNO that turns G-code commands into stepper signals https://github.com/grbl/grbl)
- 4-Axis support (X, Y, Z , A-Can duplicate X,Y,Z or do a full 4th axis with custom firmware using pins D12 and D13)
- 2 x End stops for each axis (6 in total)
- Spindle enable and direction
- Coolant enable
- Uses removable Pololu A4988 compatible stepper drivers. (or DRV8825)
- Jumpers to set the Micro-Stepping for the stepper drivers. (max 1/16)
(The DRV8825 board can do up to 1/32 micro-stepping)
- Stepper Motors can be connected with 4 pin molex connectors.
- Runs on 12-36V DC. (Only the Pololu DRV8825 can handle up to 36V)
Using two jumpers the 4th axis can be configured to clone the X or Y or Z axis. It can also run as an individual axis by using Digital Pin 12 for Stepping signal and Digital Pin 13 as direction signal. (GRBL only supports 3 axis’s at the moment)
Clone X-Axis to the 4th stepper driver(Marked as A)
Clone Y-Axis to the 4th stepper driver(Marked as A)
Clone Z-Axis to the 4th stepper driver(Marked as A)
Use D12 and D13 to drive the 4th stepper driver(Marked as A)
End Stop Configuration
By default GRBL is configured to trigger an alert if an end-stop goes low(Gets grounded). On the forums this has been much debated and some people requested to have active High end-stops. The jumpers in the picture provides the option to do both. (To run with default setting on GRBL the jumper need to be connected like the left shield in the image below)(This Jumper was only introduced in Version 3.02)
End-stop switches are standard “always open” switches. An End-stop gets activated when the end-stop pin connects to ground(When setup with default GRBL settings).
Configuring Micro Stepping for Each Axis
Each axis has 3 jumpers that can be set to configure the micro stepping for the axis.
In the tables below High indicates that a Jumper is insert and Low indicates that no jumper is inserted.
- Operating Voltage: 5V
- 5 Push buttons to supply a custom menu control panel
- RST button for resetting arduino program
- Integrate a potentiometer for adjusting the backlight
- Pin used:
- D4-D7 -> LCD Data transmission
- D8 -> Register Select
- D9 -> Enable pin
- D10 -> Backlight control
- APC&BT pin header for connecting wireless devices, directly compatible with:
- Expanded available I/O pins
- Expanded Analog Pinout with standard DFRobot configuration for fast sensor extension
- Dimension: 80 x 58 mm (3.15x 2.28 in)
arduino board som lader dig kommunikere via din Smartphone (ios & android)