Shared Projects

Sensor Board - originally designed for hall effect sensors. changed to reed switches

Teensy v3.1 - S.Port & WS28xx Led Shield

Pic:

-Allows for Smart Port Sensors to chain from the servo connector pins (marked) using arduino & serial monitor to log data info:

http://www.rcgroups.com/forums/showthread.php?t=2245978

-=The only power that’s needed is usb while chaining sensors=- Disconnect Board Power while USB connected and vice versa

-Working on teensy code for outputting data to onboard telemetry radio port

-Addressable led output to run led code if implemented for gps lock ect

-cut trace resistor(1k) pad for led output

-end mount 1000uf Capacitor pads for mounting

if any errors found email me at: lakins.c@gmail.com

$7.10 for three

Safety feature- cell inserted + end forward (like a flashlight) will reverse bias the diode and not allow current to flow. This uses the body as the + contact and the spring at the head is GND.

• D1 is a Diode’s Inc PDS1040, rated 10A with a 490mv drop.

Be especially cautious to prevent shorts to +!

I made this as an additional safety feature- if my wife / kid’s pick up a laser not paying attention and stick a cell in like they would a flashlight nothing will happen.

A pcb for a mechanical number pad, Designed to turn a membrane keypad into a mechanical 19 key keypad You can find the keypad i designed this board around here: http://tinyurl.com/kbnvaxr

Simple board to program arduino chips. C1 is 0.1uF

Wind Direction Encoder Revision B.1 using old Austrian Micro sneosr

ADS1293 Test Board

This is not my work!

Branded Edition for uaviation.net

Turn Style Antenna PCB, designed for UAV use.

Production Ready

A 4MHz offset attenuator for radio direction finding.

Mostly based off this design with a few modifications:

• 3 position switch: Off, On (10db pad bypassed), and On with 10db pad.
• Better filtering LPF from 4MHz oscilator to mixer section, an LC instead of RC (replaced 100ohm resistor with 15uH inductor.) Should leak less RF.

The board is designed to fit into a ½" conduit pass-through box, like what you might put on the handle end of a measuring tape yagi (Google it; there are MANY plans and designs for them.)

Only parts that are “special” are:

• 2P3T Rotary Switch
• 15uH Inductor
• 10k Pot
• 4MHz Oscillator
• 5vDC TO-97 Regulator

The rest are just standard cheap-o resistors, capacitors and 1N4148 diodes, with values as labeled on the board.

Easiest way to get a hold of me is probably on Twitter: @SmittyHalibut. Shoot me a note with your experiences if you use this board! Thanks!

we all know the quality of chinese sensors, so I’ve made this board to test multiple sensors MQ series etc.

Measures Pollutants - Untested http://triembed.org/blog/?page_id=736

DO NOT ORDER HERE.

Instead download zip file then upload to OshStencils.com. This stencil should work for triple noctigon 20mm stars. Untested.

At OshStencils.com, scroll to the bottom 3 files. Select Engrave Top Stencil (other 2 files are automatically selected).

Change stencil border to 0.75

It will look like this when done.

Price is $2.49. OshStencils has a minimum charge of $5 so add a second one to your cart or add my Cree XM & XP stencil (unless want to pay $5 for one stencil). Shipping: USPS First class (no tracking) $0.70, w/ tracking $1.95, International $3.25.

For personal, non commercial use.
RMM / Richard McDougal of mtnelectronics.com may sell this on his site if he wishes. I sent him a copy some time ago.
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PIC 16F, 3 X 7 Segment