I got the MAX756 that I was waiting for from Futurlec. The idea was to implement the very same circuit that comes in the MAX756 datasheet. In my first try I got very strange results which I posted to lladyada forum hoping to get some advice on how to solve. Eventually I set up the [...]
I’m looking at how to do a USRP clone. After evaluating a little bit the Altera Cyclone FPGA development/starter kits I realized that I would need an extra USB controller like the original USRP has. Right now, I’m trying to figure out how to use the Cypress FX2 CY7C68013, together with the [...]
By ruben.laguna
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Tagged 8051, altera, controller, CY7C68013, cyclone, Cypress, electronic, electronics, fpga, FX2, GPIF, high, microcontroller, radio, speed, usb, usrp
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Arduino Mega was released today. I already ordered mine from lawicel.
As stated in arduino mega page:
It has 54 digital input/output pins (of which 14 can be used as PWM outputs), 16 analog inputs, 4 UARTs (hardware serial ports), a 16 MHz crystal oscillator, a USB connection, a power jack, an ICSP header, and a [...]
A couple of day ago, I stumbled on GNU Radio. I was looking around electrokit online shop searching for components and I saw a Cyclone III FPGA Starter Kit for 1599 SEK (2000 SEK including taxes) and I thought : “uhmm, I could put one of this to some use” I was thinking that maybe [...]
In the past days I published a couple of arduino libraries. All coming from by XBee sensor development. I’m still waiting for the MAX756 to arrive from Futurlec, I need the MAX756 to power the xbee sensor with batteries and mount it in its final position. So in the meanwhile I’m cleaning a little bit [...]
As part of my Xbee sensor project, I created an object oriented API to access HMC6352 compass functionality and I decided to make it downloadable as an Hmc6352 Arduino Library.
Just unzip the file in the $arduino_home/hardware/libraries/. At the end you should end with $arduino_home/hardware/libraries/Hmc6352.
The library includes an example on how to use it (in File [...]
March 18, 2009 – 10:14 pm
I talked about the DS1620 in a previous post. Now I created a DS1620 library for Arduino that has a more object oriented interface. The library has to be unpacked in the $arduino_home/hardware/libraries directory. After unzipping the library you should end up with a $ARDUINO_HOME/hardware/libraries/ds1620 directory.
The library contains an example that can be accessed [...]
I finally put together an Arduino Pro Mini, the XBee, the MMA7260Q, the HMC6352, the TEMT6000 and the DS1620.
This is how it looks like on the prototyping board (ugly, I know)
Hopefully it would look better when I move it to the PCB. But before doing that I need to get the battery power set up. [...]
By ruben.laguna
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Tagged arduino, cluster, compass, heading, library, measure, measurement, temperature, tilt, xbee, zcl, zigbee
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Some examples of XBee API Frames.
Modem status frame
7E 00 02 8A 06 6F
7E: API Frame
00 02: Length
8A: Modem status
06: Coordinator started
6F: checksum FF – ((8A +06) & FF) = 6F
AT Command API Frame: MY
7e 00 04 08 52 4D 59 FF
7E: API Frame
00 02: Length
08: AT Command Frame id
52: Frame id
4d 59: MY (4d [...]
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