Description
Ardumoto Shield Dual Motor Driver Shield (2Ax2)
Ardumoto Shield is a dual motor controller for Arduino. Based on the L298 H-bridge, Ardumoto can drive two DC motors at up to 2A per channel. It makes a great control platform for RC vehicles and even small robots. It is now easier to use with control signal LEDs and is also much more flexible for advanced users.
The board draws its power from the same Vin line as the Arduino board and is blue to indicate its active direction. and contains yellow LEDs. All driver lines are diode protected from back EMF. The L298 is a dual-channel motor driver, meaning it can drive two motors individually, which is perfect for a two-wheeler. Each channel on the L298 can deliver up to 2A to the motor it is connected to.
Technical Specifications
- Operating Voltage: 6 - 35V
- Continuous Output Current: 2A
- Duty Cycle: 0 - 100%
QTR-8RC Line Sensor
This sensor module has 8 IR LED/phototransistor pairs mounted on a 0.375" pitch, making it a great detector for a line-following robot. Pairs of LEDs are arranged in series to halve current consumption, and a MOSFET allows the LEDs to be turned off for additional sensing or power-savings options. Each sensor provides a separate digital I/O-measurable output.
Functional Description
The QTR-8RC reflectance sensor array is intended as a line sensor, but it can be used as a general-purpose proximity or reflectance sensor. The module is a convenient carrier for eight IR emitter and receiver (phototransistor) pairs evenly spaced at intervals of 0.375" (9.525 mm). To use a sensor, you must first charge the output node by applying a voltage to its OUT pin. You can then read the reflectance by withdrawing the externally supplied voltage and timing how long it takes the output voltage to decay due to the integrated phototransistor. Shorter decay time is an indication of greater reflection.
This measurement approach has several advantages, especially when coupled with the ability of the QTR-8RC module to turn off LED power:
- No analog-to-digital converter (ADC) is required
- Improved sensitivity over voltage-divider analog output
- Parallel reading of multiple sensors is possible with most microcontrollers
- Parallel reading allows optimized use of the LED power enable option
The outputs are all independent, but the LEDs are arranged in pairs to halve current consumption. The LEDs are controlled by a MOSFET with a gate normally pulled high, allowing the LEDs to be turned off by setting the MOSFET gate to a low voltage. Turning the LEDs off might be advantageous for limiting power consumption when the sensors are not in use or for varying the effective brightness of the LEDs through PWM control. This sensor was designed to be used with the board parallel to the surface being sensed.
Specifications:
- Dimensions: 2.95" x 0.5" x 0.125" (without header pins installed)
- Operating voltage: 3.3-5.0 V
- Supply current: 100 mA
- Output format: 8 digital I/O-compatible signals that can be read as a timed high pulse
- Optimal sensing distance: 0.125" (3 mm)
- Maximum recommended sensing distance: 0.375" (9.5 mm)
- Weight without header pins: 0.11 oz (3.09 g)
SLT20 Aluminum - Silicone Wheel Set (33mmx20mm - Pair)
These wheels produced by handmade in best quality.
Better traction than Fingertech, Banebots or Pololu products.
Inside aluminum rim is processed at CNC lathes.
Each wheel's weight is 22 grams. Better for 2 wheeled and 4 wheeled mini sumo robots. Also suitable for fast line follower robots.
Wheel rim accepts 12mm, 15mm, and 16mm diameter dc gearbox motors. Center hole is drilled to 3mm (Which is very common shaft for miniature gearmotors). It has an M4 set screw inside, so it holds the motor's shaft mechanically and firmly.
ProFast 12V 2000RPM Fast Gearmotor
The Highest speed Dc Motor model that we sell. Recommended! Special Motor for Very Fast Line follower Robots with the economical price.
High Efficiency & High Speed DC Motors for Line Follower (Micom) Robots.
- Model: Profast 2500 Rpm
- Speed: 2000 Rpm (Revolution Per Minute)
- Voltage: 12V
- Overvoltageable?: Yes, Up to 18V
- Gearbox Ratio: 12:1
- Idle Current: 150 mA
- Stall Current: 1200 mA
- Dimensions: 48,7mm (Overall Length), 15mm x 15mm
- Shaft Diameter & Length: 3mm x 8,26mm
- Weight: 28 grams
ProFast 12V 5900RPM Fast Gearmotor
The Highest speed Dc Motor model that we sell. Recommended! Special Motor for Very Fast Line follower Robots with the economical price.
High Efficiency & High Speed DC Motors for Line Follower (Micom) Robots.
- Model:Profast 5900 Rpm
- Speed: 5900 Rpm (Revolution Per Minute)
- Voltage: 12V
- Overvoltageable?: Yes, Up to 18V
- Gearbox Ratio: 12:1
- Idle Current: 150 mA
- Stall Current: 1200 mA
- Dimensions: 48,7mm (Overall Length), 15mm x 15mm
- Shaft Diameter & Length: 3mm x 8,26mm
- Weight: 28 grams
12mm Motor Brackets (Pair)
With this compact motor holder, you can easily mount Micro Metal Motors to your robot body. With the protrusions on the inside of the motor holder and the helical structure of the motor holder, your motor will be securely attached to your robot body. You can easily assemble with screw holes for fixing the nuts on the motor holder.
Include:
- 1 x Pair mount bracket
- 4 x M2 screw
- 4 x M2 nut
Mini Plastic Caster Wheel Pair
Plastic caster wheels for lightweight projects.
We use them in line follower robot projects
Pair of JSumo Mini Caster Wheels
Made of plastic
Ideal for lightweight projects
Note: Product Images are shown for illustrative purposes only and may differ from the actual products