Category Archives: tECHNOLOGY

How do I come to terms with LANC?

One wire dual direction LAN.  Takes 4 identical commands for the rec. to see it as a valid command.


Pulled up to 5V~.
Pulled down =Mark

This drawing is from

Use arduino to drive, Plain English:



Example code:


tons of detail:

Vixia HFS200



Nop = 0x0000,
RecordStart = 0x3318,
RecordStop = 0x198C,
IrisIncrement = 0x5528, // Used for IDLE state
IrisDecrement = 0x5328, // Used for IDLE state
IrisRecIncrement = 0x2A94, // Used for RECORD state
IrisRecDecrement = 0x2994, // Used for RECORD state
IrisAutoAdjust = 0xAF28,
FocusShuttleFar = 0xE028, // Used for IDLE state (value mask 0x0F00: 1 3 5 7 9 B D F)
FocusShuttleNear = 0xF028, // Used for IDLE state (value mask 0x0F00: 1 3 5 7 9 B D F)
FocusShuttleRecFar = 0x7094, // Used for RECORD state (value mask 0x0700: 0 1 2 3 4 5 6 7)
FocusShuttleRecNear = 0x7894, // Used for RECORD state (value mask 0x0700: 0 1 2 3 4 5 6 7)
FocusFar = 0x4528, // Used for IDLE state
FocusNear = 0x4728, // Used for IDLE state
FocusRecFar = 0x2394, // Used for RECORD state
FocusRecNear = 0x2294, // Used for RECORD state

these are the few we want to try


AF Iris auto
77 White balance reset (not if white balance is selected via menu)
55 Iris more open

Iris more open
53 Exposure auto/man. toggle (models of the early 90’s)
Iris more close
49 White balance toggle (only cameras until approx. 1996)

lanc on a small canon 220 camera uses a 2/32 submini plug RS 274-0298


CANON HFS200 Manual

Canon vixia Hookup VIDEO





The command for opening the IRIS is:
Byte 0 – 0010 1000
Byte 1 – 55 (expressed in hexa)





What are the deets on the low serial number F50EX DEECS?


A  !non-embedded! Falcon 50EX below serial number ____ has 9 pin DEEC download ports.  Not the same as a F50…Not the same as a 900…not the same as a F50EX with embedded interface.  and no, yo cannot just take the upper cowl off and download directly from the DEEC.


A decade ago, Honeywell was able to provide the 9 – pin adapter . for $1800.00 and 6 months lead.  Good luck even getting the part number now.

Here is what we worked out after much trial and tribulation! Thanks Marcus!


CAUTION: pin 1 orientation on the RJ12 end is to the left when the tab is held down.  You may have a similar !!!! or !!!! reverse cable end.  WIre to the pin positions, not the colors.







What are the details for the 2015 electronics and Robotics class?

 2015 class is done and gone!

9.00 to 12.00 AM Electronics Class




Page 2-7

introduction to relay


Page 7 current

relay details


Slow Fan /Fast fan  with ann


1.00 to 4.00 PM Robotics Class





Goal: construct and program a robot.  the robot will be controlled via a Android Cell phone.

The final test will be a robot soccer tournament, with each student competing on teams for the championship.

the coaster Chassis will be the same as last year.

4WD_RobotBaseThe  Controller   is an Arduino .  The drive logic board will be hand made with relays as per this Instructible. EasyRelay

here is the actual relays we used


The Bluetooth link will be provided by this (ubiquitous) HC05 module:

HC06 Module

The header strips will be used to connect the loose wires to the arduino

first run at the arduino code and the Android code will  be from TechBitar. This Cel Phone App, and Arduino code is a simple interface that

Control 2 DC Motors Via Bluetooth (1)

Which pin is which?



4WD motor base

..1 ea battery holder (included)

..4 ea AA battery


.. 1 ea 9V battery

..1 ea 2.1mm plug  w wires

Header strips for arduino connection



..1 ea cable (included)

..1 ea 1000 ohm resistor

.. 1 ea 2000 ohm resistor

Relay H Bridge

..2 ea relay

..2 ea tip-120

..2 ea 220 ohm resistor






Power supply




Other surfing:

these prototype backpacks are a little cheaper,  Amazon Offering,

Two Wheel, 2 deck:

US Based in Vermont:

Other Chassis : 28.00

Simpler 2 wheen chassis in stock

Motor controller

How do I configure a New Ubuntu Machine with all the usual suspects?

General Rules for aquiring hardware for linux MINT:

1. Don’t buy bleeding edge new stuff, but hardware that’s already on the market for some time. That increases the chance of the right drivers being present in the kernel of Mint 18. Additional advantage: it saves you a lot of money.

2. Make sure your graphics card is either Intel or Nvidia; avoid AMD and the others.

3. Wireless: Buy Atheros, Intel, Ralink or Realtek instead.don’t buy a Broadcom chipset.

D) use the .DEB canon printer

GIMP from Repository

XP DualBoot BlahBlah

LabJack installs .Net framework