Version vom 18. März 2017, 16:00 Uhr

Abstract

Ardumower's bumper sensor (called 'BumperDuino') is based on a pressure sensor and helps us to detect obstacles.

The PCB module and sensor can be purchased as complete kit via the shop .

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  BumperDuino pressure sensor tube

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  BumperDuino example

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  BumperDuino pressure sensor tube

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  BumperDuino building instructions

Building instructions

Building instructions as well as instructions for programming the Arduino can be found in the BumperDuino manual.

Schematics

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  BumperDuino schematics

1. GitHub folder
2. Schematics

Code

You can download the Arduino Code here. Important: Choose 'Arduino Uno' as bootloader.

To upload the code, set jumper to 'VUSB' and connect an USB-TTL adapter to J4 (USB-LIGHT) as follows:

J4 (USB-LIGHT)
1 -- USB-TTL GND
2 -- not used
3 -- USB-TTL +5V
4 -- USB-TTL TX
5 -- USB-TTL RX
6 -- USB-TTL DTR (reset)

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  BumperDuino and USB-TTL adapter

All steps are described in more detail here: FT232RL USB-adapter manual.

Connecting to Ardumower

Set jumper to 'VIN', and connect VIN and BUMPER-OC to Ardumower as follows:
VIN
(+) -- 9-12V
(-) -- GND

BUMPER-OC
DC1 -- Ardumower bumper left/1
DC2 -- Ardumower bumper right/2

Videos

1. Introduction BumperDuino
2. Making Of BumperDuino

BumperDuino and tilt protection

The BumperDuino is permanently improved. Here you can find a version including tilt protection:

BumperDuino using tilt protection