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PICAXE-20 Project Board

Teaching Notes
Key Stage 3
PICAXE-20 interface board. Supports 8 inputs (4 ADC), 8 outputs and is fitted with a Darlington driver chip. Self assembly & requires a 20 pin PICAXE chip.

Availability: In Stock.

3718 £4.25
(£5.10 incl VAT)

The PICAXE-20 standard interface board is a self assembly board fitted with a Darlington driver chip so that output devices such as motors and buzzers can be connected directly to the board. Supports 8 inputs (4 ADC) and 8 outputs. Requires a 20 pin PICAXE® chip.

Click here to download datasheet

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Posted by Connor Bowman, Friday, 16 January 2015 on product PICAXE-20 Project Board
  • 1

    Yes you could use a Bi coloured LED, if it’s a 3 legged device this is very straight forward. If it’s a 2 legged device you would just need to sink the current through an NPN transistor to ground, with its gate connected to the LED output. 

    Posted by Michael Lockhart on Friday, 16 January 2015
Posted by Jack Toleman, Monday, 6 October 2014 on product PICAXE-20 Project Board
  • 0
    A: The board uses an ULN2803A Darlington transistor array IC (IC2 on the board). This can drive 0.5A per channel, so as long as your solenoid uses no more than 0.5A then you can connect it directly to the board without additional drive circuitry. There are 8 inputs on the PICAXE chip so as long as your key pad is configured in a matrix then then there will be enough to go around. There is info on using a key pad in this video.
    Posted by Geoff Hampson on Monday, 6 October 2014
Posted by Bradley Michael Collins, on product PICAXE-20 Project Board
  • 0

    Hi Bradley, The voltage range which the PICAXE IC can handle is 4.5-5V. As such a voltage range between this suitable.

    Posted by Michael Lockhart on Monday, 20 March 2017

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How to Use PICAXE
Get started with a PICAXE microcontroller with our quick guide.
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