# Pololu Balboa 32U4 Control Board

**Type:** Product page · **SKU:** POLOLU-3576 · **Brand:** [Pololu](https://core-electronics.com.au/brands/pololu-australia)
**Page:** https://core-electronics.com.au/pololu-balboa-32u4-control-board.html ([markdown](https://core-electronics.com.au/pololu-balboa-32u4-control-board.html.md))

This is the control board for the Balboa 32U4 robot. It is included as part of the Balboa 32U4 Balancing Robot Kit and can be added to the Balboa Chassis with Stability Conversion Kit to turn into a Balboa 32U4 robot.

## Pricing

- **Price:** $124.95 (inc GST) — $113.59 AUD, exc GST
- **Quantity discounts:** 5+ $109.05 (exc GST) · 10+ $105.64 (exc GST)

## Availability & dispatch

- Available with a lead time — expect dispatch between Aug 31 and Sep 02.

## Description

This is primarily intended as a replacement part for the [Balboa 32U4 Balancing Robot](https://core-electronics.com.au/pololu-balboa-32u4-balancing-robot-kit-no-motors-or-wheels.html), but it can also be combined with the [Balboa Chassis with Stability Conversion Kit](https://core-electronics.com.au/pololu-balboa-chassis-with-stability-conversion-kit-no-motors-wheels-or-electronics.html) to make your own Balboa 32U4 robot. This product consists of the Balboa 32U4 control board PCB shown in the main product picture along with the following additional parts:

- one [buzzer](https://core-electronics.com.au/9mm-electromagnetic-buzzer-30o-3-7v-side-opening.html)
- jumper wires for soldering motors to the board
- two [magnetic encoder discs](https://core-electronics.com.au/magnetic-encoder-disc-for-micro-metal-gearmotors-12-cpr-bulk.html)
- one single flat and one single spring battery contact
- four 3/16" #2-56 screws and nuts for mounting the board to a Balboa Chassis

See the Balboa user’s guide for assembly instructions.

| \| [![](https://core-electronics.com.au/attachments/localcontent/0J7588_53056601378.jpg)](https://core-electronics.com.au/attachments/localcontent/0J7588_80915dc278d.jpg) \| \|---\| | \| [![](https://core-electronics.com.au/attachments/localcontent/0J7586_32097fe66b6.jpg)](https://core-electronics.com.au/attachments/localcontent/0J7586_5430297a9bd.jpg) \| \|---\|---\| |
|---|

**People often buy this product together with:**

| [![50:1 Micro Metal Gearmotor HPCB 6V with Extended Motor Shaft](https://core-electronics.com.au/attachments/localcontent/0J6830_3507e73fe1.jpg)](https://core-electronics.com.au/50-1-micro-metal-gearmotor-hpcb-6v-with-extended-motor-shaft.html) | [50:1 Micro Metal Gearmotor HPCB 6V with Extended Motor Shaft](https://core-electronics.com.au/50-1-micro-metal-gearmotor-hpcb-6v-with-extended-motor-shaft.html) |
|---|---|

| [![5-Channel Reflectance Sensor Array for Balboa 32U4 Balancing Robot](https://core-electronics.com.au/attachments/localcontent/0J9639_3620fe13bf.jpg)](https://core-electronics.com.au/pololu-5-channel-reflectance-sensor-array-for-balboa-32u4-balancing-robot.html) | [5-Channel Reflectance Sensor Array for Balboa 32U4 Balancing Robot](https://core-electronics.com.au/pololu-5-channel-reflectance-sensor-array-for-balboa-32u4-balancing-robot.html) |
|---|---|

**Identifying markings**

 | PCB dev codes: | bal01a |
|---|---|
| Other PCB markings: | 0J10317 |

**Documentation and other information**

- ![](https://core-electronics.com.au/attachments/localcontent/0J7579_5496e46f44.jpg)**Pololu Balboa 32U4 Balancing Robot User’s Guide ([Printable PDF](https://core-electronics.com.au/attachments/localcontent/balboa_32u4_robot_33623c3c90b.pdf))**
    
    User’s manual for the Pololu Balboa 32U4 balancing robot.
 
**File downloads**

- **[Pololu A-Star 32U4 drivers for Windows (version 1.3.0.0)](https://core-electronics.com.au/attachments/localcontent/a-star-windows-1_719645dd44.zip) (7k zip)**
    
    This download contains the Windows drivers for the A-Star 32U4 and the rest of Pololu's 32U4 family of boards.
- **[Schematic diagram of the Balboa 32U4 control board](https://core-electronics.com.au/attachments/localcontent/balboa-32u4-control-board-schematic_587102099c8.pdf) (587k pdf)**
- **[Pinout and power distribution diagrams of the Balboa 32U4 control board](https://core-electronics.com.au/attachments/localcontent/balboa-32u4-control-board-pinout-power_1884655639c.pdf) (2MB pdf)**
- **[Dimension diagram of the Balboa 32U4 Control Board](https://core-electronics.com.au/attachments/localcontent/balboa-32u4-control-board-dimensions_47124685cd9.pdf) (471k pdf)**
- **3D model of the Balboa 32U4 Control Board (27MB step)**
    
    Note: this model includes an [LCD](https://core-electronics.com.au/8x2-character-lcd-black-bezel-parallel-interface.html) and headers that are sold separately from the Balboa 32U4 Balancing Robot Kit.
- **Drill guide for the Balboa 32U4 Control Board (285k dxf)**
    
    This DXF drawing shows the locations of all of the board’s holes.
- **[LSM6DS33 datasheet](https://core-electronics.com.au/attachments/localcontent/LSM6DS33_11545218594.pdf) (1MB pdf)**
    
    Datasheet for the ST LSM6DS33 3D accelerometer and 3D gyroscope.
- **[LIS3MDL datasheet](https://core-electronics.com.au/attachments/localcontent/LIS3MDL_1697332cae7.pdf) (2MB pdf)**
    
    Datasheet for the ST LIS3MDL 3-axis magnetometer.
 
**Recommended links**

- **[Balboa 32U4 Arduino library](https://github.com/pololu/balboa-32u4-arduino-library)**
    
    The Balboa32U4 library for the Arduino IDE helps interface with the on-board hardware on the [Balboa 32U4](https://core-electronics.com.au/pololu-balboa-32u4-balancing-robot-kit-no-motors-or-wheels.html) control board as well as the optional [5-channel reflectance sensor array](https://core-electronics.com.au/pololu-5-channel-reflectance-sensor-array-for-balboa-32u4-balancing-robot.html) for the Balboa.
- **[Balboa 32U4 library documentation](https://pololu.github.io/balboa-32u4-arduino-library/)**
- **[LSM6 library for Arduino](https://github.com/pololu/lsm6-arduino)**
    
    An Arduino library for interfacing with the LSM6DSO and LSM6DS33 accelerometer and gyro ICs.
- **[LIS3MDL library for Arduino](https://github.com/pololu/lis3mdl-arduino)**
    
    An Arduino library for interfacing with the LIS3MDL magnetometer.
- **[Forum post: Correcting the Balboa magnetometer](https://forum.pololu.com/t/correcting-the-balboa-magnetometer/14315)**
    
    Pololu forum user Jim Remington has shared a technique for compensating for hard iron distortion of the Balboa’s magnetometer. After corrections, he was able to create a compass program with a basic accuracy of ±2°, sufficient for navigating the Balboa around the room.

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/0/j/0j7587.1200.jpg)