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Found 8 results

  1. This project was my final project for the Embedded Systems Class at John Brown University. For this project, I used a Sparkfun RGB and Gesture Sensor, an Arduino, and a Raspberry Pi. I used the Arduino to read in gesture directions from the gesture sensor and then set a certain GPIO pin high, delayed, and then set the pin low based on which direction was sensed, left or right. This GPIO pin was connected toa a GPIO pin on the Raspberry Pi. The Raspberry Pi took the signal from the GPIO pin and sent a specified command out to the Linux command line from an already running Bash script. The command sent changed the page of an open PDF file on the Raspberry Pi GUI based on the gesture direction.
  2. Hope you snag one. Enjoy! Use code CYBER https://www.arrow.com/en/products/raspberrypi3/raspberry-pi-foundation
  3. Cool concept to adding boards to the Raspberry Pi. Atomo is a complete system for building electronic things with four parts: Control, IO, Power, and Connector. https://www.indiegogo.com/projects/atomo-modular-electronics-system-arduino--2#/ https://youtu.be/0uOsLvB1of0
  4. Having a small collection of older F1xx and F4xx MSP430 devices, I've been looking for a convenient way to flash and debug them. The devices I have don't support Spy By Wire, so they require 4-wire JTAG. They also have their JTAG pins shared with other functions, so the test and reset pins have to be used to put them into JTAG mode. While I do have an Olimex parallel-port JTAG adapter, the computer I use most of the time has no parallel port. A Raspberry Pi running Debian Jessie and mspdebug with its gpio driver looked like a good option. Adding a patch to mspdebug so that the gpio driver supports the reset and test pins got it working. The patch is here: https://github.com/johnp789/mspdebug/tree/gpiojtag Now, I only need a Raspberry Pi Zero, Debian Jessie with the USB ethernet gadget configured on a micro SD card, a USB cable, and 7 jumper wires to flash and debug 4-wire JTAG MSP430 devices. The Pi Zero might be the lowest-cost 4-wire MSP430 JTAG debugger available! $ sudo ./mspdebug -j -d "tdi=3 tdo=2 tms=4 tck=17 rst=22 tst=27" gpio MSPDebug version 0.24 - debugging tool for MSP430 MCUs Copyright (C) 2009-2016 Daniel Beer <dlbeer@gmail.com> This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. Chip info database from MSP430.dll v3.3.1.4 Copyright (C) 2013 TI, Inc. gpio tms= 4 gpio tdi= 3 gpio tdo= 2 gpio tck= 17 gpio rst= 22 gpio tst= 27 Starting JTAG JTAG_power on JTAG_connct led green JTAG ID: 0x89 Chip ID data: ver_id: 49f4 ver_sub_id: 0000 revision: 01 fab: 40 self: 0000 config: 00 Device: MSP430F44x Available commands: ! fill power setwatch_r = gdb prog setwatch_w alias help read simio blow_jtag_fuse hexout regs step break isearch reset sym blow_jtag_fuse hexout regs step break isearch reset sym cgraph load run verify delbreak load_raw save_raw verify_raw dis md set erase mw setbreak exit opt setwatch Available options: color gdb_default_port enable_bsl_access gdb_loop enable_fuse_blow gdbc_xfer_size enable_locked_flash_access iradix fet_block_size quiet Type "help <topic>" for more information. Use the "opt" command ("help opt") to set options. Press Ctrl+D to quit. (mspdebug) prog fet440_1.c.hex led green Erasing... led red led red Programming... Writing 74 bytes at 1100... led red led red Writing 32 bytes at ffe0... led red led red Done, 106 bytes total (mspdebug)
  5. I couldn't find an example of someone using the Raspberry Pi as a receiving hub for sensor nodes that use the spirilis nRF24L01+ library and a MSP430G2553. I thought I would give it a shot since I think this would be beneficial to the community. I found a C library for the Raspberry Pi and nRF24L01+: https://github.com/stanleyseow/RF24. Class reference is here: http://maniacbug.github.io/RF24/classRF24.html There is also a newer python library but I haven
  6. RS is giving away 1000 special edition Raspi to celebrate the anniversary. The details: http://www.designspark.com/eng/blog/limited-edition-raspberry-pi Good luck
  7. Hi everybody, I followed Recursive Lab's tutorial on using the Stellaris launchpad with Linux and now have succesfully compiled lm4tools and gcc for the Raspberry Pi. I am currently able to create, edit and program (and debug) the Stellaris Launchpad with the Raspberry Pi. I have a feeling that this could a wonderful combination, but I am currently a little dry on good ideas to pursue. Does anyone have suggestions? Kind regards, Eelco
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