Good news - we're open for limited services in Wembley. Ujima House is now actively under refurbishment and we'd love your help in making the space the best it can be.

Please pay attention to the main LHS mailing list or pop into our #london-hack-space IRC channel and say hello.

During this interim period donations and continued membership are greatly appreciated while we transition to our new space.

Equipment/Bus Pirate

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Bus pirate
Hackspace Unknown.png
Model Unknown
Sub-category Test equipment
Status Good working order
Last updated 29 May 2013 15:49:21
Consumables Unknown
Accessories Unknown
Training link Unknown
Owner Unknown
Origin Unknown
Location Ground floor, electronics bench

Bus Pirate


The Bus Pirate is a low-level interface to:

  • 1-Wire
  • UART
  • I2C
  • SPI
  • JTAG
  • raw 2-wire
  • raw 3-wire
  • PC keyboard
  • HD44780 LCDs
  • MIDI

It includes an ADC and can bit bash these protocols at the wire level. It can also be put into UART bridge mode, acting as a simple serial port.


Our connector

brown - GND		
red - +3.3			 
orange - +5	
yellow - ADC		 
green - VPU		
blue - AUX
purple - CLK		
grey - MOSI		
white - CS			
black - MISO

NB This order depends on attachment as connector is symmetrical and may be inverted.

Sparkfun Connectors

I have noticed that the sparkfun connector and buspirate uses the following mappings

black – gnd
white – 3.3V
grey – 5V
purple – ADC
blue – VExtern
green – aux1
yellow – clk
orange – MOSI
red – CS
brown – MISO

AVRDude bus pirate mappings

+ * BusPirate       AVR Chip 
+ * ---------       --------
+ *       GND  <->  GND
+ *       +5V  <->  Vcc
+ *        CS  <->  RESET
+ *      MOSI  <->  MOSI
+ *      MISO  <->  MISO
+ *   SCL/CLK  <->  SCK

Real life example

As it happened at the LHS, the bus pirate interacting with a Hitachi HM55B compass module: