The 5K pots will be read by a 16 bit a-d converter. There will also be end stop micro-switch protection on the shoulders. Shoulder positions are read by these 5K potentiometers connected by the spring loaded belts.The pulleys give me a (2 to 1) resolution...
Make sure your an SD Card breakout board which breaks out all 6 SDIO signals. Then wire the signals to the corresponding pins on your hat's gpio header, keeping the wire length as short as possible.SDIO SignalGPIO Pin #SD_CLK15SD_CMD16SD_DATA018SD_DATA122SD_DATA237SD_DATA3133v31...
SALVAGING CONNECTORSIf you have an old VGA cable (check with your local IT department, they probably have boxes of them) you can salvage the connectors. Start by pulling out the thumbscrews with pliers. Then use a hack saw to cut the ends off, but instead...
Time to change the dimension, calculating point cloudAfter sucessfully matching all images we now can create the point cloudSource:[Alexander Kroth]To give you an idead of how long it takes to detect the feature points and to match them: A series of...
ENCLOSURE, CONECCTIONS & HARDWAREThis diagram shows the Raspberry pi 2, GPIO wirings are exactly the same on all Pi's, please prototype this connections before try the enclosure, it will help you to understand the basic functions and try the app first....
LCD displayThe LCD display is a generic 4 line 20 character module. It exposes a set of ~16 digital connections. Because the controller has a limited I/O count, the LCD module is connected through the I2C bus. The I2C bus to LCD2004 combination is quite...
Stepper motor controlThe stepper motor, a NEMA 23 type, is strong and equally power hungry. A good stepper motor driver controls the current through the motor. The chosen stepper motor controller might be a little over-dimensioned but can be easily limited...
IMPORTANT CLEANING NOTEDon't use any solvents to clean the disc! It'll cause cracking, especially at the cut edges. Soap and water are OK.GETTING READYFish a CD and a coffee stirrer out of the rubbish bin or whatever. Clean them if necessary. Collect...
Uploading the Code to the ArduinoIn this step you will have to upload the code below to the Arduino. You can also download the Arduino sketch from the link below the code. Remember that to send code to the Arduino you must set the switch on the Sparkfun...
Select a DIMM:SDRAM (PC-66, PC100, PC133...). Preferably SINGLE-SIDED (for this prototype)Double-sided DIMMs will only have half their memory available to this sdramThingZero prototypeSorry, DDR++ support is a long ways off (if at all).SODIMMs (from...
INSTRUCTIONS STATUS:THIS IS WAY OUTDATED...Hey, I need to revise these instructions a bit, per some changes I made during the actual process... So, if you've actually been building one of these, please let me know before I change it all up.Instruction...
Utilization: Here is a picture of a 21km race I made while carrying my GPS data logger. The track is in red over a satellite view map.All you have to do is power up the circuit, and it will instantly start logging your GPS data (even befor GPS fix) to...