Chumby Guts Kit

From Calliespedia

Contents 1 Manufacturer Information 1.1 Website 1.2 Model 1.3 Serial Number 1.4 Owner's Manual 2 Purchase History 2.1 Purchased From 2.2 Purchase Date 3 Features 4 Technical Details 5 Notes 5.1 Soldering Wires to Bender Switch 5.2 Longer Chumbilical Flex Cable 5.2.1 Materials 5.3 Enclosure

Manufacturer Information

Chumby

Website

• http://www.makershed.com/ProductDetails.asp?ProductCode=MKCH1
• http://www.chumby.com/
• http://blog.makezine.com/archive/2009/11/build_chumby_guts_kit.html

Model

Serial Number

Owner's Manual

Purchase History

Purchased From

http://makershed.com

Purchase Date

Features

Technical Details

• 3.5’’ LCD (320hx240v 16bpp TFT) with Touch Screen
• Texas Instruments TSC2100 Programmable Touchscreen Controller with Stereo DAC integrated into the motherboard
• Plastic Front Bezel
• Gasket
• Aluminum Frame
• 4 x Screws to attach Aluminum Frame to Front Bezel
• 350MHz Freescale iMX21 MC94MX21DVKN3 ARM9 controller Motherboard Circuit Card Assembly with Samsung * 64MB SDRAM on 32-bit data path and Hynix HY27US 64MB NAND Flash ROM
• Kionix KXP74-1050 3-axis accelerometer integrated into the daughterboard
• Daughtercard Circuit Card Assembly
• Three USB 2.0 full speed ports, one internal, two external
• Chumbilical Flex Cable from Daughter card CCA to Motherboard CCA
• Wifi Riser Circuit Card Assembly
• USB Wifi Dongle based on the Xterasys 3135G 802.11g USB Wifi adapter (ralink chipset)
• Flex Cable for Wifi Riser CCA to Motherboard CCA
• 3 x Screws for Wifi Riser CCA to Motherboard CCA
• 3 x Standoffs for screws for Wifi Riser CCA to Motherboard CCA
• 2 x 2W StereoSpeakers
• 4 x Screws for Speaker to Plastic Speaker Holder
• Plastic Speaker Holder
• Switch for Bend Sensor
• Plastic Switch Holder
• 2 wire cable with 2 pin connector(from Daughterboard CCA to switch)
• 2 x Screws to Attach Switch to Plastic Switch Holder
• 12 V DC 1A Power Supply
• Built-in microphone

Notes

Soldering Wires to Bender Switch

The wires should be soldered to the NO pole and COM pole. In the Maker video, there is some confusion about which poles (or tabs) the wires should be soldered to. It looks as if the wires were soldered to the NC and NO poles if it was the same switch I received with my kit.

Which wire is soldered to what pole doesn't matter.

Longer Chumbilical Flex Cable

Materials

At Fry's Electronics, I found 26 pin dual row sockets. I tried finding some bulk ribbon cable, but had to settle for hacking some pre-existing floppy drive cables. I chose the 18-inch round floppy cable.

I removed the existing 34 pin dual row sockets at the ends of the cable. Exposed were 34 color-coded wires fanned out and taped flat. I kept 26 wires in the fan and peeled away the other 8 wires. On the other end, I used the same-colored 26 wires in the fan and peeled away the other 8 wires.

Then I crimped the 26 wires into the 26 pin dual row sockets. Using the original Chumbilical, I doubled checked the ends to make sure the I hadn't crossed the wires.

Enclosure

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