A NASA astronomer selected ARM Ethernet controllers to create a one-off error-correction system for an infrared telescope.
Our secondary mirror assembly would occasionally jerk. So we constructed a system using eight BMA180 accelerometers, each attached to an ARMWeb SBC.
These were then programmed to acquire and stream the accelero- meter data to a Linux server. The server would save and graph the data in real time. When an 'image jump' was recorded, this accelero-
meter data was analyzed to help identify the faulty mechanism.
University of Hawaii
ARM7 Ethernet Microcontroller
60 MHz (LPC2138)
- Provides 10MB Ethernet connectivity
- Simplifies integration with Web page and controller hardware
- Board-mounted 60 MHz 32 bit ARM7 CPU (LPC2138)
- Programmable in a compiled BASIC, C, HTML, and XML
- Operates faster than 10 million BASIC lines/second
- 75mm x 120mm
- Compatible with Hammond 1455K1201 enclosure
- 64k user code space (5,000 Instructions)
- 5k user data
- 224k user file space
- 32k RAM
- 750 mW
- 5-6V DC input
- Battery RTC option
- Connections for 31 digital I/O
- 8 x 10 bit analog A/Ds, 1 10bit DAC
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