# Pololu Zumo 32U4 Front Sensor Array

**Type:** Product page · **SKU:** POLOLU-3122 · **Brand:** [Pololu](https://core-electronics.com.au/brands/pololu-australia)
**Page:** https://core-electronics.com.au/pololu-zumo-32u4-front-sensor-array.html ([markdown](https://core-electronics.com.au/pololu-zumo-32u4-front-sensor-array.html.md))

This is the front sensor array of the Zumo 32U4 robot. It is included as part of the Zumo 32U4 Robot Kit and built into the assembled versions of the Zumo 32U4 Robots. It is not intended for use with the Zumo Robot for Arduino or Zumo Shield for Arduino. Additional header pins and infrared LEDs are included.

## Pricing

- **Price:** $41.80 (inc GST) — $38.00 AUD, exc GST
- **Quantity discounts:** 10+ $36.48 (exc GST) · 25+ $35.34 (exc GST)

## Availability & dispatch

- Available with a lead time — expect dispatch between Aug 20 and Aug 24.

## Description

This sensor array features five downward-facing reflectance sensors for line-following or edge-detection, and it also includes front- and side-facing detectors that work together with IR emitters on the Zumo 32U4 main board to create a proximity sensor system. It is primarily intended as a replacement part, but it can also be used to make your own Zumo 32U4 robot if you only want a subset of the parts included with Pololu's full kit. The [Zumo 32U4 OLED Robot Kit](https://core-electronics.com.au/zumo-32u4-oled-robot-kit-no-motors.html) consists of the following:

- [Zumo Chassis Kit](https://core-electronics.com.au/zumo-chassis-kit-no-motors.html)
- [Zumo 32U4 OLED Main Board](https://core-electronics.com.au/zumo-32u4-oled-main-board.html)
- [Zumo 32U4 Front Sensor Array](https://core-electronics.com.au/pololu-zumo-32u4-front-sensor-array.html)
- [Zumo 32U4 Blade](https://core-electronics.com.au/pololu-zumo-32u4-blade.html)
- [graphical OLED display](https://core-electronics.com.au/graphical-oled-display-128x64-1-3-white-spi.html)

Two [micro metal gearmotors](https://core-electronics.com.au/category/141/micro-metal-gearmotors-with-extended-motor-shafts) and four [AA batteries](https://core-electronics.com.au/rechargeable-nimh-aa-battery-1-2-v-2200-mah-1-cell.html) are also required to complete the Zumo 32U4 robot.

**Included components**

The Zumo 32U4 Front Sensor Array includes:

- 2×12 extended male header for sensor array
- two 1×3 right-angle male headers and two shorting blocks – jumpers for sensor array
- two wide-angle and two narrow-angle through-hole infrared LEDs (these plug into the main board and serve as forward emitters for the proximity sensor detectors located on the front sensor array)

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

| [![8×2 Character LCD - Black Bezel (Parallel Interface)](https://core-electronics.com.au/attachments/localcontent/0J9752_42128e488e.jpg)](https://core-electronics.com.au/8x2-character-lcd-black-bezel-parallel-interface.html) | [8×2 Character LCD - Black Bezel (Parallel Interface)](https://core-electronics.com.au/8x2-character-lcd-black-bezel-parallel-interface.html) |
|---|---|

| [![Zumo Chassis Kit (No Motors)](https://core-electronics.com.au/attachments/localcontent/0J6602_323901a8e4.jpg)](https://core-electronics.com.au/zumo-chassis-kit-no-motors.html) | [Zumo Chassis Kit (No Motors)](https://core-electronics.com.au/zumo-chassis-kit-no-motors.html) |
|---|---|

| [![75:1 Micro Metal Gearmotor HP 6V with Extended Motor Shaft](https://core-electronics.com.au/attachments/localcontent/0J2814_3366f164cb.jpg)](https://core-electronics.com.au/75-1-micro-metal-gearmotor-hp-with-extended-motor-shaft.html) | [75:1 Micro Metal Gearmotor HP 6V with Extended Motor Shaft](https://core-electronics.com.au/75-1-micro-metal-gearmotor-hp-with-extended-motor-shaft.html) |
|---|---|

**Identifying markings**

 | PCB dev codes: | irs08a |
|---|---|
| Other PCB markings: | 0J8696 |

**Documentation and other information**

- ![](https://core-electronics.com.au/attachments/localcontent/0J11450_3709327fbe.jpg)**Pololu Zumo 32U4 Robot User’s Guide (Printable PDF)**
    
    User’s manual for the Pololu Zumo 32U4 robot.
 
**File downloads**

- **Dimension diagram of the Zumo 32U4 Front Sensor Array (205k pdf)**
- **3D model of the Zumo 32U4 Front Sensor Array (4MB step)**
- **Drill guide for Zumo 32U4 Front Sensor Array (87k dxf)**
    
    This DXF drawing shows the locations of all of the board’s holes.

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/0/j/0j10592.1200.jpg)