Background:
Jay Silver of MIT Media Lab created the clever & fun Drawdio:
The Drawdio is a pencil that lets you draw music or, in more general sense, turn almost anything into a "theremin"!
Thanks to the power of Open Source Hardware, Limor Fried of Adafruit Industrires was able to design a fantastic DIY electronics kit based on Jay's Drawdio design:
http://www.ladyada.net/make/drawdio/index.html
The circuit board, or PCB, was designed with CadSoft EAGLE as are all of Adafruit's kits. They also release full design files and source code (when software is used) for all their project & kits.
Instructions:
At Maker Faire NYC, the element14 booth will be giving away Drawdio kits containing the PCB from Adafruit and electronics components sourced from the element14 Store. If you received such a kit, then please use the Adafruit Drawdio v1.1 instructions to build your kit:
SOLDER IT! @ http://www.ladyada.net/make/drawdio/solder.html
NOTE: The ceramic capacitors included in the element14 kit differ slightly from the illustrations in adafruit's instructions:
- Both ceramic capacitors in the element14 kit are yellow. The smaller one, marked '681' and packaged on cardboard, is C1 (680pF).
- The larger yellow capacitor is C3 (0.1 uF).
- Also, the 300K resistor RB included with the kit is dark brown, but of course has the same colour code (Orange Black Yellow Gold) indicated in the instructions.
Please also note that Adafruit can not provide support for these element14 Drawdio kits. Please post any questions or concerns in the element14 Drawdio kit in this Open Source Hardware Group.
Bill of Materials:
Adafruit Industries:
element14 electronic components:
SKU Qty Desc
08F9140 1 TEXS INSTRUMENTS TL551CPTEXS INSTRUMENTS TL551CP
83C0266 1 BIPOLAR TRANSISTOR, PNP, -60VBIPOLAR TRANSISTOR, PNP, -60V
46P6336 1 CAPACITOR CERAMIC 680PF, 100V, X7R, RADIALCAPACITOR CERAMIC 680PF, 100V, X7R, RADIAL
56K3637 1 CAPACITOR CERAMIC 0.1UF, 100V, X7R, 10%, RAD CAPACITOR CERAMIC 0.1UF, 100V, X7R, 10%, RAD
23K3685 1 CAPACITOR ALUM ELEC 100UF, 6.3V, 20%, RADIAL CAPACITOR ALUM ELEC 100UF, 6.3V, 20%, RADIAL
58K4999 1 RESISTOR, CARBON FILM, 10 OHM, 250mW, 5%RESISTOR, CARBON FILM, 10 OHM, 250mW, 5%
58K5002 1 RESISTOR, CARBON FILM, 10KOHM, 250mW, 5% RESISTOR, CARBON FILM, 10KOHM, 250mW, 5%
73K0308 1 RESISTOR CARBON, 300KOHM, 250mW, 5%RESISTOR CARBON, 300KOHM, 250mW, 5%
58K5005 1 RESISTOR, CARBON FILM, 10MOHM, 250mW, 5%RESISTOR, CARBON FILM, 10MOHM, 250mW, 5%
96K2702 1 Speaker
16F1095 1 BATTERY HOLDER, AAA, THDBATTERY HOLDER, AAA, THD
33C7229 1 HOOK_UP WIRE 25FT BLACKHOOK_UP WIRE 25FT BLACK *Each kit only needs 3"
33C7233 1 HOOK-UP WIRE, 25FT, 22AWG, CU, REDHOOK-UP WIRE, 25FT, 22AWG, CU, RED *Each kit only needs 3"
Newark Electronics:
96F9287 Qty 1 TAPE, FOIL SHIELD, COPPER, 0.25INX18YD TAPE, FOIL SHIELD, COPPER, 0.25INX18YD *Each kit only needs 6" of foil tape
- 2B Graphite Pencil with no eraser, open top (Blick or any art supply store)
- Thumbtack
- Small Zip Tie / Cable Tie