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Turn on and Troubleshooting Notes
Instructions from Flea-Scope USB O-scope (18 Msps, $13 BoM, WebUSB)
I first visually look for shorts/opens, especially on the QFN or QFP and USB (shorts can be easily reworked with the Kester 2331-ZX flux pen; always clean and dry boards after rework; I use isopropyl alcohol and a toothbrush followed by running water)....

Place 2nd blue resistor-Optional
Instructions from Bite-Sized Breadboards: Light Sensor
If your room is dark and it's on all the time, add the second blue resistor to make the photocell less sensitive to light! Move the 10k resistor from B1 to B4, leave B7 in placePlace the other 10k resistor from A1 to A4

Lift kite
Instructions from Energy Independence While Travelling
Let's start at the top with the lift kite An HQ KAP foil lift kite is a good steady lifter ... not so strong pulling as a single skin but stable. Practice with these so you are comfortable with their use before you attach one to a turbine. Make sure...

Smile Station
Instructions from Smile Station
Ok I pored the cement in the tube with a blue foam board on the bottom glued to the sides. That seemed to work out well accept I stuck a blue foam board cutout with a hole cut out in it to keep the 2" pvc pipe in place. Bad Idea it moved the PVC pipe...

Output Inductor Build
Instructions from 350 Watt True Sine Inverter
This instruction is for building the output inductor (two required - L401, L402). It describes materials and fabrication guidance but assumes the reader has experience assembling magnetics. Additional information can be found in the magnetics...

Modify the Comms Link part 2 - trickier
Instructions from Getting online with a 1987 Psion Organiser II
I created my Bluetooth-ed Comms Link back in February. When connecting the HC06 TXD/RXD pins to the Psion Comms Link, I remember the connections being a bit complicated.When I came back to the project a few weeks ago (in November) I thought to myself...

Step 6
Instructions from Arduino Coin Dispenser
The functions for the servos will be very easy if you learned how to properly use them from step 3 so I will not spend much time on them. I will say however you will probably have to adjust the delay time and the angles they are turning. Do not...

Put the parts together
Instructions from Retro Slide Projector "Green-Edition"
Scrap all parts off the bulb holder including the wing-like metal airflow thingies (you will have to be a bit rough and break that parts) and the mirror. You should by now have a clean metal slate with a large hole on the top and some smaller holes on...

Manual SMT Pick and Place Machine
Instructions from Manual SMT Pick and Place Machine
The Arduino code is incredibly simple, with some strange looking oversampling for preventing the motors from vibrating:void sampling() //Oversample the slider readings to avoid motor vibration. { i=0; val =0; smallVal=0; while(i

D.I.M.E.R PROJECT 6 DOF Robot Arm
Instructions from D.I.M.E.R PROJECT 6 DOF Robot Arm
Hello there!In Christmas I had a little more time to improve DIMER, improvements have been mainly two; motor drivers and two potentiometers to know their position and power programming.Drivers:In Bilbao maker fair another maker told me he had just found...

Provisioning the Raspberry Pi
Instructions from GePS
Next, you're going to get the SD card ready for booting the operating system on the Raspberry Pi. This begins with copying the official raspbian lite image to the SD card. This is a process that can be done in many ways, and it slightly differs depending...

PEEKDAAN
Instructions from PEEKDAAN
98% passion to do it and people willingness to help

Switch and Buzzer
Instructions from Medicine Timer
Plug the Arduino into a breadboard and attach the buzzer to A4 and GND. Attach a switch to A12 and GND.

Affordable Reflectance Transformation Imaging Dome
Instructions from Affordable Reflectance Transformation Imaging Dome
Next step is to wire all the source leads on the MOSFETs together (the right lead when you're looking straight on at it), and also wire them to the one 2-pin female headers on the lower left side of the board (which will be connected to the positive...

Affordable Reflectance Transformation Imaging Dome
Instructions from Affordable Reflectance Transformation Imaging Dome
Time to start putting together the low-side driver board with the CAT4101s. First step is to install the connector on the 11 x 8.5 cm protoboard. This is the spec'ed component, but if you can't find one that size, you can use another one up to 11.5 cm...

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