Overview
Tech specs
Power
There is an on-board voltage regulator for higher voltages that protect the Braccio shield. NOTE: The protection doesn’t work for the Arduino Yun if you put the bridge between Vin and 5V on the Arm Robot Shield V1 (greater version of are called Braccio shield and has a power switch on the top of the shield)
Physical Characteristics
- Plastic Parts x 21
- Screws x 63
- Flat Washer x 16
- Hexagon Nut x 7
- Springs x 2
- Servo Motors: 2 x SR 311, 4 x SR 431
- Arduino compatible Shield x 1
- Power Supply 5V, 4A x 1
- Phillips Screwdriver x 1
- Spiral Cable Protection Wrap x 1
Fully assembled Braccio Kit:
| Weight |
792 g |
| Maximum operating distance range |
80 cm |
| Maximum Height |
52 cm |
| Base Width |
14 cm |
| Gripper Width |
90 mm |
| Cable length |
40 cm |
| Load Capacity |
Maximum weight at 32 cm operating distance: 150 g |
| Maximum weight at the minimal Braccio configuration: 400g |
Servo Technical Specification
| SpringRC SR431 - Dual Output Servo |
|
| Control Signal |
PWM Analog |
| Torque |
@ 4.8V: 169.5 oz-in (12.2 kg-cm) @ 6.0V: 201.4 oz-in (14.5 kg-cm) |
| Weight |
2.19 oz (62.0 g) |
| Dimentions |
1.65×0.81×1.56 in (42.0×20.5×39.5 mm) |
| Speed |
@ 4.8V: 0.20 sec/60° @ 6.0V: 0.18 sec/60° |
| Rotation Support |
Dual Bearings |
| Gear Material |
Metal |
| Rotation Range |
180° |
| Connector Type |
J (aka Futaba) |
| SpringRC SR311 |
|
| Control Signal |
PWM Analog |
| Torque |
@ 4.8V: 43.13 oz-in (3.1 kg-cm) @ 6.0V: 52.86 oz-in (3.8 kg-cm) |
| Weight |
0.95 oz (27.0 g) |
| Dimentions |
1.23×0.65×1.13 in (31.3×16.5×28.6 mm) |
| Speed |
@ 4.8V: 0.14 sec/60° @ 6.0V: 0.12 sec/60° |
| Rotation Support |
Dual Bearings |
| Gear Material |
Metal |
| Rotation Range |
180° |
| Connector Type |
J (aka Futaba) |
Conformities
Documentation
Assembly video
OSH: Schematics
The TinkerKit braccio is open-source hardware! You can build your own board using the following file:
Get Inspired
Max out the digital I/O on the Arduino Uno Rev3!
Although we recently launched the new 32-bit Arduino UNO R4, Clem Mayer wanted to honor its 8-bit predecessor by making something special using the Rev3. Drawing on old hardware designs, the ZX-81 is an 8-bit computer based on the Z80 processor which has 1KB of RAM and 1KB of EEPROM available for the user to utilize within the operating environment — typically a BASIC interpreter shell. Similarly, Mayer wanted to have one ATmega328P run the TinyBASIC interpreter while a secondary ATmega328P would handle the external keyboard and display due to resource constraints. The PCB was designed to fit within the form factor of a standard event badge, complete with a small multiplexed keyboard and a 20x4 monochrome LCD screen to fit the retro theme. On the back layer of the board are both AVR MCUs in a surface-mount package to save on space along with a pair of battery holders and a buzzer/power delivery circuitry. Although the code was working for the most part, Mayer still encountered a couple of problems which he solved mainly through bodges and ensuring the LCD was producing adequate contrast. Once the hardware was functioning as intended, he 3D-printed a case and turned it into a lanyard-attached device — complete with blinky lights and a highly interactive interface. The finished handheld computer badge is a testament to the power and versatility of the Arduino Uno R3. By utilizing all available pins and space on the chip, Clem successfully transforms the Arduino Uno into a handheld computer with capabilities like the ZX-81. The project serves as a fitting tribute to the beloved Arduino UNO R3 and showcases the potential for DIY electronics with microcontrollers. To see more on this project, be sure to watch Mayer's video below!
FAQs
How many axis does the Braccio robot arm have?
The braccio has a total of 6 axis:
Axis 1 – It is located at the base of a robot, and helps it to rotate from left to right.
Axis 2 – It helps the lower arm of a robot to move in an up and down motion.
Axis 3 – It allows the upper arm of a robot to move forward and backward.
Axis 4 – This axis is known as wrist roll, and it rotates the upper arm of a robot in a circular movement.
Axis 5 – It permits the wrist of the robot’s arm to raise and lower.
Axis 6 – It allows the wrist of the robot’s arm to rotate freely in a circular motion.
All the above six axes are controlled with the help of servo motors.