Parts for the SpokePOV Kit
Check to make sure your kit comes with the following parts. Sometimes we make mistakes so double check everything and email [email protected] if you need replacements!Picture | Name | Description | Part # | Distributor | Qty. |
IC1 | Microcontroller Pre-programmed when purchased as part of a kit. |
ATtiny2313V-10PU |
Digikey Mouser or Adafruit(programmed) |
1 | |
IC1* | 20 Pin Socket | Generic |
Mouser Digikey |
1 | |
IC2 | 4 Kbyte EEPROM | 25LC320, CAT25320 or AT25320 (4K SPI EEPROM) |
Digikey Mouser |
1 | |
IC2* | 8 Pin Socket | Generic |
Mouser Digikey |
1 | |
IC3-IC10 | Serial to Parallel latch | 74HC595 |
Mouser Digikey |
8 | |
X1 | Hall effect sensor | DN6852 or US5881 |
Digikey | 1 | |
S1 | Waterproof switch |
SKQBAKA010 or SKQBALA010 |
Mouser | 1 | |
J2 | Programming Header | 30310-6002HB |
Mouser Digikey |
1 | |
AA battery clips | Keystone 92 |
Mouser Digikey |
4 (red, yellow) or 6 (green, blue) | ||
C1 | 0.1uF ceramic capacitor | Generic | 1 | ||
C2 | 47uF to 100uF axial capacitor | Generic | Digikey | 1 | |
R1 | 1/4W 5% 10K resistor (brown black orange) | Generic | 1 | ||
RN1-RN8 | 10-pin bussed 9 resistor network | 33-39 ohm for yellow LEDs 33-39 ohm for red LEDs 56 or 68 ohm for blue LEDs 56 or 68 ohm for green LEDs |
27 ohm - (Digikey,Mouser) 39 ohm - (Digikey,Mouser) 56 ohm - (Digikey,Mouser) 68 ohm - (Digikey,Mouser) |
8 | |
LED1-LED60 | LED | High Brightness 5mm LED |
LEDshoppe ABCtronics |
60 | |
PCB | Silkscreened PCB | Custom | Adafruit | 1 |
In v1.1 two components have been added, C1 and C2. These parts add power supply stability!
Start by inserting C2 by bending the legs and placing it in the circuit board. C2 is a polarized capacitor.This means it should be soldered in a certain way and if you put it in backwards it can be damaged or even explode!
If you look carefully you will see a bump on one end of the capacitor, and on the circuit board the printed image also has a bump. Check the photo if you are not sure.
Place the 6 top 74HC595 latches in the proper spots, making sure to align the notches on the chip with the notches in the pictures. Tack them in place by soldering two corner pins of each one from the top. Then turn the board over and solder all the pins.
Next, do the same with the 2 latches on the reverse side.
LEDs are diodes, that means they only work in one direction, unlike resistors. That means you must put the LED in right or it won't work!
How do you know which way is which? That's easy, the LEDs have one leg that is slightly longer! That leg is the "anode" positive leg. The shorter one is the "cathode" negative lead.
Grab the LED back and place the first 30 into the front row. Make sure the longer lead/wire of the LED is in the hole closest to the edge of the board. Otherwise the LED will not light up. This is a pretty common mistake so please work slowly and carefully :) Sometimes the LEDs have the flattened edge of the plastic wrong so go with the length of the leads. Longer lead goes in the hole closest to the edge of the baord
When you place each LED, bend the leads out so that it won't fall out when you turn the board over.
Solder the LEDs and clip the leads, either one at a time or all at once, whichever is easiest for you.
On this side, it can be a little tough to see which side is 'flattened'
On this side of the kit (with the battery connectors as shown on the left) - the longer leg of the LED goes in the hole along the edge of the PCB.
Sometimes the LEDs have the flattened edge of the plastic wrong so go with the length of the leads. Longer lead goes in the hole closest to the edge of the board
Now that you're done assembling it, you can test the board to make sure it's functioning. Put two (or three) good AA batteries into the clips. Whenever the microcontroller gets notice of a 'hard reset' it goes through a little test routine where it lights up all the LEDs in order, then it lights up one LED on each side of the SpokePOV to indicate that it's still on. The actual LED itself will vary as it is used for debugging.
If none of the LEDs are lighting up, go back and check to see if you put in any latches, batteries or the microcontroller in backwards. If just a few LEDs arent lighting up, check if they're in backwards.
SpokePOVs now come pre-programmed with some sample images. You can trigger the images using a magnet, sweep it past the sensor a few times and then wave it in the air, you should see a pattern displayed.
Can't get it working? Don't worry, help is available in the forums!
Page last edited April 19, 2013
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