Nuts and Volts - September 2011

Qty Reference 1 BT1 1 N/A 6 C1,C6,C9,C10,C11,C15 6 C2,C3,C4,C5,C16,C17 1 C7 1 C8 2 C12,C13 1 C14 4 D1,D2,D3,D4 1 D5 1 LCD1 1 N/A 1 P1 1 Q1 1 R1 5 R2,R3,R4,R5,R6 2 SW1,SW2 1 U1 1 U2 1 N/A 6 W1,W2,W3,W4,W5,W6 1 PCB Manufacturer MPD Panasonic TDK Kemet Kemet Taiyo Yuden Taiyo Yuden Kemet Avago ON Semiconductor Kent Displays GM Nameplate Hirose Fairchild Yageo Panasonic C&K Freescale FTDI N/A Panasonic e-Teknet

Table 1. Bill of Materials. Manuf. Part Distributor Distrib. Part # BU2032SM-JJ-GTR Digi-Key BU2032SM-JJ-GTR-ND CR2032 Digi-Key P189-ND C3216X7R1H105K Digi-Key 445-1423-2-ND C0603C104K4RACTU Digi-Key 399-1096-2-ND T491A106M016AT Newark 57K1640 UMK212B7474KG-T Digi-Key 587-1288-2-ND TMK212BJ225KG-T Digi-Key 587-1292-2-ND C0603C475K8PACTU Digi-Key 399-5503-2-ND HSMH-C192 N/A N/A MMDL914T1G Mouser 863-MMDL914T1G 1594101208 N/A N/A N/A N/A N/A UX60SC-MB-5ST( 80) Digi-Key H11671TR-ND FDN340P Digi-Key FDN340PTR-ND RC0603FR-07200RL Mouser 603-RC0603FR-07200RL ERJ-3GEYJ102V Digi-Key P1.0KGTR-ND KSC201JLFS Digi-Key 401-1756-2-ND MC56F8006VLC Avnet N/A FT232RL Mouser 895-FT232RL N/A Avnet N/A ERJ-8GEY0R00V Digi-Key P0.0ETR-ND DC18 N/A N/A Description Single-cell battery holder for CR2032, SMD CR2032 Lithium 3V Coin Cell Battery (225mAh) 1.0uF ceramic capacitor, 50V, X7R, 1206 0.1uF ceramic capacitor, 16V, X7R, 0603 10uF capacitor, 20%, 16V, tantalum, size A 0.47uF ceramic capacitor, 50V, X7R, 0805 2.2uF ceramic capacitor, 25V, X5R, 0805 4.7uF ceramic capacitor, 10V, X5R, 0603 LED, Red, 0603, 1.8Vf, 17mcd 20mA Diode, Switching, 100Vr, 1Vf 10mA, 5uA Ir 75V, SOD-323

available for user interface control.

The badge is based around a Freescale MC56F8006 16-bit digital signal controller and a 128 by 32 reflective cholesteric LCD by Kent Displays. The design is meant to be stark and simple. It measures a svelte 50 mm wide by 100 mm long, and all the components — with the exception of the LCD — are mounted on the back of the badge (Figure 1).

Hardware Design

Refer to the schematic (Figure 2) and bill of materials (Table 1) for specific component information.

Microcontroller

As mentioned, the heart of the badge, U1, is the

200, 1% R1 1.0uF C1

Figure 2. DEFCON 18 badge schematic.

0.1uF C3

VCC 1.0uF C6

0.1uF C5 0.1uF C4

0.1uF C2

1

2

3

4

5 P1 UX60SC-MB-5ST USBDM USBDP VUSB USB Mini B

7C Fu01

D1

HSMH-C192

2 R k1

VUSB

#RXLED #TXLED

4.7uF C14

2.2uF C12

1.0uF C10

0.47uF C8

2.2uF C13 1.0uF C11 1.0uF C9

VCC D2

3 R k1

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 LCD1 Kent 1594101208

128x32 Graphic Display Module N/C V0 V4 V3 V2 V1 VDD VDDIO D/#C #CS1 #RESET UCLK SIMO BUSY VSS VCP1 C1P C1N VCP2 C2P C2N VCP3 C3P C3N VCP4 C4P C4N VCI VSS D/#C #SS #RST SCLK SIMO BUSY Affix to front of badge VBATT VCC