Difference between revisions of "Hacking hardware for chumby"
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=Power requirements= | =Power requirements= | ||
The chumby uses a very standard 2.1mm I.D. x 5.5mm O.D. x 9.5mm Female (P-5) barrel connector and runs off 1A at anywhere between 6.5 VDC and 14.5 VDC.<br> | The chumby uses a very standard 2.1mm I.D. x 5.5mm O.D. x 9.5mm Female (P-5) barrel connector and runs off 1A at anywhere between 6.5 VDC and 14.5 VDC.<br> | ||
| − | It ships with a "wallwart" power supply with US-style prongs, however, it's pretty easy to find a compatible power supply with other form factors. | + | It ships with a "wallwart" power supply with US-style prongs, however, it's pretty easy to find a compatible power supply with other form factors. Make sure the power supply provides 1 amp (1,000 ma).<br> |
| + | For a DC power plug, Radio Shack part number #274-1569 works fine, though a tiny bit longer than the plug that comes with the unit. | ||
Revision as of 13:01, 4 November 2007
Note - this page is for hacking of "Ironforge" production hardware.
For information about alpha prototypes, please see Hacking hardware for Foo/Katamari.
What questions do you have about hacking the hardware?
Please post questions here, and someone will attempt to create a sub-page to answer it! Or, check out the forum to see if your question has already been answered.
What's in a chumby?
- 350MHz Freescale iMX21 MC94MX21DVKN3 ARM9 controller Datasheet Technical Information
- Samsung 64MB SDRAM on 32-bit data path
- Hynix HY27US 64MB NAND Flash ROM
- Three USB 2.0 full speed ports, one internal, two external
- Xterasys 3135G 802.11g USB Wifi adapter (ralink chipset)
- DataImage 320hx240v TFT display with touchscreen
- Texas Instruments TSC2110 Programmable Touchscreen Controller with Stereo DAC Datasheet?
- 2W stereo speakers, with headphone jack
- Built-in microphone
- "Bend" switch
- Kionix KXP74-1050 3-axis accelerometer Datasheet Specifications
- STMicroelectronics STR711FR0/1 ARM7 "crypto" processor Datasheet
- Soft-switch on power, controlled by crypto processor
- TTL serial port @38400 8N1
Power requirements
The chumby uses a very standard 2.1mm I.D. x 5.5mm O.D. x 9.5mm Female (P-5) barrel connector and runs off 1A at anywhere between 6.5 VDC and 14.5 VDC.
It ships with a "wallwart" power supply with US-style prongs, however, it's pretty easy to find a compatible power supply with other form factors. Make sure the power supply provides 1 amp (1,000 ma).
For a DC power plug, Radio Shack part number #274-1569 works fine, though a tiny bit longer than the plug that comes with the unit.
