Datasheet
Table Of Contents
- Contents
- Microbot Overview
- PICAXE Programming System
- Microbot Power Supply
- BOT120 Microbot Contents List
- The Microbric Connector
- Assembly 1 - Motherboard Panel
- Assembly 2 - Battery Box
- Assembly 3 - Motor Housing
- Assembly 4 - Motors
- Assembly 5 - Wheels, Tyres and Rear Skid
- Assembly 6 - Line Tracker
- Assembly 7 - Bumper Switches
- Assembly 8 - Pen Holder, Servo and SRF005 Modules
- Fully Assembled Microbot
- Motor Trouble Shooting
- Programming Software
- Programming Cable
- Download Hard Reset
- PICAXE-20X2 Pin Connections
- PICAXE-20X2 Microbot Pinout Table (Logicator)
- PICAXE-20X2 Microbot Pinout Table (Programming Editor / AXEpad)
- Programming Example 1 - LED Eyes
- Programming Example 2 - Push Button Switch
- Programming Example 3 - Bumper
- Programming Example 4 - Piezo Sounder
- Programming Example 5 - Motors
- Programming Example 6 - Line Tracker Testing
- Programming Example 7 - Line Tracker Program
- BOT121 Microbot Sensors Pack
- Assembly 9 - Infra-red Receiver (IR RX) Module
- Assembly 10 - Infra-red Transmitter (IR TX) Module
- Using the TVR010A Infra-red TV Style Remote
- Programming Example 8 - Infra-red Receiver
- Programming Example 9 - Infra-red Transmitter
- Assembly 11 - LDR Light Sensor Modules
- Programming Example 10 - Testing LDR Light Sensors
- Programming Example 11 - Light Follower
- SRF005 Ultrasonic Range Finder
- Assembly 12 - SRF005 Ultrasonic Range Finder
- Programming Example 12 - Testing SRF005
- Programming Example 13 - Using the SRF005
- BOT123 Servo Upgrade Pack
- Assembly 13 - BOT123 Servo / SRF005 Servo Adapter
- Programming Example 14 - Using Servos
- BOT127 Line Tracker / LED Upgrade Pack
- Appendix 1 - Home Made Sensors
- Appendix 2 - BOT120 Microbot Motherboard Schematic
- Appendix 3 - BOT120 Sensors Schematic
- Appendix 4 - BOT121 Sensors Pack Schematic
- Appendix 5 - BOT123 Servo Pack Schematic
- Appendix 6 - Advanced PIC (Non-PICAXE) Programming
- Appendix 7 - Copyright and Trademarks
- BOT110 Versabot - Microbot's 'big brother!'
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revolution
(c) Copyright Revolution Education Ltd. Web: www.picaxe.co.uk Version 1.1 04/10
BOT120.PMD
BOT120 PICAXE-20X2 MICROBOT
Appendix 1 - Home Made Sensors
For advanced roboteers with appropriate electronics experience it is
possible to build your own sensors for your Microbot. The easiest way to
do this is to use the servo connector circuit board provided with the
BOT120 motherboard which has a three pin header which provides
direct links to the connection points on the motherboard.
One servo connector is provided within the BOT120 starter pack.
Two further servo connectors are also available within the BOT123 servo
‘add-on’ pack.
Note the order of the connection point contacts on the servo header:
Pin 1 (Gold) Signal Input or Output
Pin 2 (Red) +V Power from motherboard (4.5V)
Pin 3 (Black) 0V 0V from motherboard
Alternately a bric/support post combination may be used as shown. This
is basically a reverse (facing up rather than down) copy of the Line
Tracker mounting arrangement. This will provide 3 posts on a 5mm
pitch that can be used to connect to your own PCB. On your PCB use
three 3mm diameter pads (with a 2.1mm hole) spaced at 5mm centres.
Note that the motherboard has 220 ohm series protection resistors on all
signal lines on the motherboard (see the circuit diagram in the appendix
2). This must be accounted for when designing home made circuits.
The maximum output sink/source current of any i/o pin is 20mA, with a
maximum total load of 90mA for all output devices. Exceeding these
values may permanently damage your Microbot.