• on Computer/Software/Internet
  • Published in issue 2/2008 on page 38
About the article

CAN Explorer

Versatile PC-CAN Interface

CAN Explorer
The CAN bus network is usually associated with vehicle systems or industrial automation but it can also be used in many other situations including home automation. Implementing the network is not a trivial undertaking. This low-cost solution is a CAN board which sits between the CAN bus and a PC. Using the versatile (free) software it can monitor activity on the network and test the functioning of other nodes.
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Gerber file

CAM/CAD data for the PCB referred to in this article is available as a Gerber file. Elektor Members can exclusively download these files for free as part of their Membership. Gerber files allow a PCB to be produced on an appropriate device available locally, or through an online PCB manufacturing service. Elektor recommends its business partner Eurocircuits as the company of choice for its own prototypes and volume production in selected cases.

Resistors
R1,R2,R3 = 10kΩ
R4 = 120Ω
R5 = 1kΩ
Capacitors
C1,C2,C3,C6,C8,C9 = 100nF, 5mm lead pitch
C4,C5 = 22pF
C7 = 470µF 25V (radial)
C10 = 47µF 25V (radial)
Semiconductors
B1 = KBP2005G (bridge rectifier)
D1 = LED, 3mm, 2mA
IC1,IC2 = 74HCT245
IC3 = MCP2515 (SOIC)
IC4 = MCP2551SN (SOIC)
IC5 = 7805 (TO220)
Miscellaneous
JP1 = 2-way pinheader with jumper
JP2 = 3-way pinheader with jumper
K1 = 25-way sub-D plug, right-angled pins, PCB mount
K2 = 9- way sub-D plug, right-angled pins, PCB mount
K3 = mains adaptor socket (HEBW25), right-angled pins
X1 = 16MHz quartz crystal (HC49U)
PCB, no. 060201-1
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