From 5a606c759d912f15b2c94a1cabadd5e123eb79c9 Mon Sep 17 00:00:00 2001 From: Keith Packard Date: Tue, 18 Dec 2012 00:12:48 -0800 Subject: Add basic MPSerial info Signed-off-by: Keith Packard --- MPSerial/index.mdwn | 47 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 47 insertions(+) create mode 100644 MPSerial/index.mdwn (limited to 'MPSerial') diff --git a/MPSerial/index.mdwn b/MPSerial/index.mdwn new file mode 100644 index 0000000..b31f12a --- /dev/null +++ b/MPSerial/index.mdwn @@ -0,0 +1,47 @@ +[[!meta title="MPSerial"]] + + +# MicroPeak Serial Interface (MPSerial) # + +The MicroPeak Serial Interface board provides a way to capture flight +logs over a USB connection to a computer running Linux, Mac OS or +Windows. + +## MicroPeak Data ## + + * Stored in on-chip 512B eeprom + * Records raw barometer readings every 192ms + * Enough storage for 48 seconds + +No changes are needed to the MicroPeak hardware, but new firmware that +includes the data download feature is necessary to use the MicroPeak +Serial Interface. + +## MicroPeak Interface ## + +MicroPeak transmits the entire flight log via the LED just after +reporting the last flight altitude at power up. The data are +transmitted in regular serial format at 9600 baud. + +The MicroPeak Serial Interface board contains a phototransistor, +op-amp and serial-to-USB interface chip. + +## Developer View ## + +Here's a close-up view of the hardware + + * Hardware Features + * ROHM RPM-075PT Phototransistor + * Peak sensitivity matches MicroPeak LED color + * [ST Micro TSV521](http://www.st.com/internet/analog/product/251123.jsp) CMOS op-amp + * Low power + * [FTDI FT230](http://www.ftdichip.com/Products/ICs/FT230X.html) Serial to USB adapter + * Drivers available for Linux, Mac OS X and Windows. + + * Tools Used + * [gEDA](http://www.gpleda.org/) for schematic capture and PCB layout + + * Licenses + * The hardware is licensed under the [TAPR](http://www.tapr.org) [Open Hardware License](http://www.tapr.org/ohl.html) + +
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