Mindstorms NXT

Started by Dave in comp.arch.embedded13 years ago 6 replies

There is a review of the new Mindstorms NXT at http://arstechnica.com/reviews/hardware/mindstorms.ars Short summary: 32-bit ARM7 micro,...

There is a review of the new Mindstorms NXT at http://arstechnica.com/reviews/hardware/mindstorms.ars Short summary: 32-bit ARM7 micro, USB 2.0, Bluetooth, 4 input ports, 3 output ports, only (!) $250 USD for the kit. ~Dave~


DUART ISR

Started by Vasilios Dimos in comp.arch.embedded15 years ago 1 reply

Hello all, i am currently working on a development board with the ST10 and a NS16c552 duart with 16Byte FIFO. I am trying to use the duart to...

Hello all, i am currently working on a development board with the ST10 and a NS16c552 duart with 16Byte FIFO. I am trying to use the duart to connect to a bluetooth module. I am having some difficulties and with the DUART ISR, which causes some unpredictable behaviour, and i was wondering if anyone has some experience with this duart ? I am writing the ISR in c for the tasking compiler, and...


Motor Control with Bluetooth Low Energy

Started by jxabby in comp.arch.embedded4 years ago 4 replies

Hi, I want to control a small DC motor for a toy I am building, but I'm having trouble finding the right chipset because there's so many...

Hi, I want to control a small DC motor for a toy I am building, but I'm having trouble finding the right chipset because there's so many companies selling ble right now. I don'tw ant to do Arduino because it's a bit slow. I'm ok with ARM, but does anyone have experience with this or know of any circuit and information for controlling motor using BLE? Thanks ------------------------------...


Reason not to use Linux?

Started by andrew queisser in comp.arch.embedded14 years ago 8 replies

I'm looking at OS choices for a 32bit embedded system with USB and BlueTooth. Right now our system has no OS at all but at some point we'll...

I'm looking at OS choices for a 32bit embedded system with USB and BlueTooth. Right now our system has no OS at all but at some point we'll want one that makes it easy to extend with various peripherals (802.x, flash cards, IDE, etc.). The processor will be something like a low-end ARM, PPC, MIPS or similar (not chosen yet.) I'm looking at OS choices and Linux would fit the bill and I'm ...


Blank Piece of Paper: Bluetooth Controlled Motor

Started by Anonymous in comp.arch.embedded11 years ago 4 replies

Greetings, Though I have an educational background in computer hardware and embedded systems I have never taken on a blank slate project on...

Greetings, Though I have an educational background in computer hardware and embedded systems I have never taken on a blank slate project on my own, and I am having trouble as to where to begin. After a few minutes lamenting the high cost of my education versus the actual real world experience needed to accomplish anything I figured I would ask for some advice since starting from a blank pie...


advice for the right parts for a tiny device: data collection and transmission

Started by Anonymous in comp.arch.embedded11 years ago 2 replies

hello, im using some hobby time to make a device which collects data from a remote temperature sensor and then performs some...

hello, im using some hobby time to make a device which collects data from a remote temperature sensor and then performs some rudimentary corelation analysis and stores it on board (about 8-16MB) for sometime. Later it will be transmitted using a class 3 Bluetooth transmitter to my PDA. Im clueless as to the best components out there. Im looking at each to have a really small size (of les...


MCB 900 Verification of Running Program

Started by Anonymous in comp.arch.embedded12 years ago 2 replies

Hello all, We're a team of engineers working towards operating an automotive security and operation system using an encoded bluetooth signal...

Hello all, We're a team of engineers working towards operating an automotive security and operation system using an encoded bluetooth signal that are having some simple troubles getting our main components to work. Thus far work has been done (starting today) on interfacing the P89LPC932 on an Keil MCB900 v4 with an LCD. We obtained an LCD interface for our 40x2 LCD by going here: http:...


powering a LED through the human skin

Started by Lyn in comp.arch.embedded13 years ago 37 replies

I am trying to solve a problem of having wires going up to an MP3 player to the earpiece. I also didn't want the weight of batteries, e.g. via...

I am trying to solve a problem of having wires going up to an MP3 player to the earpiece. I also didn't want the weight of batteries, e.g. via a Bluetooth or other wireless head set. I did an experiment where I used conductive paint to mark out some tracks on my skin to replace wires. The conductive paint is very flexible (I put it on my hand which flexed a lot ) and there seemed to be enou...


rs-232 to i2c converter using 16f88

Started by Squishy in comp.arch.embedded11 years ago 3 replies

Hi guys, I've been searching the internet and specifically this site now for a few weeks in an attempt to learn how to get my 16f88 to convert...

Hi guys, I've been searching the internet and specifically this site now for a few weeks in an attempt to learn how to get my 16f88 to convert my gps data (rs-232) to i2c. I am doing this so that my Lego NXT can receive gps data without it using up the bluetooth connection. I have the physical stuff that I need (programming board, chip, serial cable etc) but I lack the know-how. I was ...


Palm IR interfacing

Started by nemo in comp.arch.embedded12 years ago 9 replies

I am looking at developing an accessory for the Palm PDAs and I realized that the most common interface on all the different models is the IR...

I am looking at developing an accessory for the Palm PDAs and I realized that the most common interface on all the different models is the IR port. The serial port was dropped in favor of USB on the newer units and the older units don't have USB. Only a few models have bluetooth. But they all have IR, right? This is not a mass market accessory I need, but rather something that will appe...


outdoor RF ad hoc network

Started by Bert in comp.arch.embedded14 years ago 4 replies

Hello all.. first things first, Im an absolute novice trying to provide guidance on a project. the details are for - wireless outdoor...

Hello all.. first things first, Im an absolute novice trying to provide guidance on a project. the details are for - wireless outdoor network, a golf course - so some trees/clear LOS path - approx 20 nodes, ie node per hole - some nodes would just be repeaters - some nodes would be sensor equipped (ie prox card or swipe card) and a display; or maybe bluetooth equipped (


looking for OEM handhelds manufacturers

Started by ymax in comp.arch.embedded15 years ago 6 replies

I'm looking for OEM handhelds manufacturers, ie some vendors which sell partially or fully assembled handhelds computers on specification, to be...

I'm looking for OEM handhelds manufacturers, ie some vendors which sell partially or fully assembled handhelds computers on specification, to be put into customized enclosures. The ideal platform is a ARM (or x86) compatible processor at 200/400 MHz, has a high quality touch screen, 802.11 and Bluetooth working at the same time, one host usb port and SD/MMC and/or CF expansion capabilities...


Suggestions required for embedded linux platform

Started by bluesmoke0 in comp.arch.embedded10 years ago 1 reply

Hi, I want to design a gateway platform for home automation application that can expose its services to WLAN. The platform should also be...

Hi, I want to design a gateway platform for home automation application that can expose its services to WLAN. The platform should also be able to support the Bluetooth connectivity. I am thinking to use an embedded Linux OS to enable it to execute the libupnp (UPnP SDK for linux) application for service discovery. Can any one suggest me a suitable embedded linux development board, more close...


Embest offers SBCs with flexible design

Started by Anonymous in comp.arch.embedded12 years ago 2 replies

Embest now offers a series of single board computers with low cost and flexible design. The boards are based on ARM7 or ARM9 CPU like S3C44B0,...

Embest now offers a series of single board computers with low cost and flexible design. The boards are based on ARM7 or ARM9 CPU like S3C44B0, S3C2410, LPC2000, etc. And features with Ethernet, bluetooth, USB, IDE and so on. Special ODM/OEM service can be also provided. More information can be found at: http://www.armkits.com/Product/sbc2410II.asp


Wireless that's "Fall off a log" easy?

Started by Tim Wescott in comp.arch.embedded9 years ago 43 replies

Are there any wireless sub-systems that are just "fall off a log" easy to integrate into an embedded system? The ideal gizmo would go into an...

Are there any wireless sub-systems that are just "fall off a log" easy to integrate into an embedded system? The ideal gizmo would go into an OEM product, wouldn't require the OEM to mess with any certification issues, would make the product appear as a serial device to a host computer via BlueTooth, would talk to it's local embedded processor via serial, and would be plug and play. ...


Looking for a little embedded computer... Gumstix?

Started by Peter in comp.arch.embedded10 years ago 4 replies

I've got the following hardware requirement: 2 x RS232 port Bluetooth (to talk to a mobile phone) Ethernet (speed irrelevant) USB...

I've got the following hardware requirement: 2 x RS232 port Bluetooth (to talk to a mobile phone) Ethernet (speed irrelevant) USB (Controller) A small qwerty keyboard A small text LCD 640x480 Video output NTSC video output No particular processor power is required Low power dissipation Needs to fit into a box approx (mm) 100 x 50 x 150 I've designed loads of embedded hardware over ...


Bluetooth ACL Problems

Started by mike lyons in comp.arch.embedded15 years ago 2 replies

I have been having some problems sending and receiving HCI ACL packets. For some reason I have to wait about 20ms between sending packets when...

I have been having some problems sending and receiving HCI ACL packets. For some reason I have to wait about 20ms between sending packets when sending from master to slave, otherwise the module will crash. Sending ACL packets from slave to master does not work at all. Therefore, I have two questions: 1. When do you know if it is safe to send another ACL packet? 2. Why is my communication o...


Multiple audio input/output streams with i.mx31

Started by vishveshwar in comp.arch.embedded11 years ago

Hello, Folks who have previously worked with i.mx based devices could possibly help us with this. We are in the process of designing a...

Hello, Folks who have previously worked with i.mx based devices could possibly help us with this. We are in the process of designing a system based on Freescale iMX31 microcontroller (ARM11). This system has multiple audio sources and sinks. We are using Freescale MC13783 PMIC and a couple of audio codec devices (for bluetooth etc). All audio devices available on PMIC (mic, stereo in/...


synchronize two measurement boards through a wireless connection

Started by Bill in comp.arch.embedded11 years ago 3 replies

Hello I need to synchronize two measurement boards through a wireless connection. Is it possible through bluetooth? Any...

Hello I need to synchronize two measurement boards through a wireless connection. Is it possible through bluetooth? Any advise how to do that?


Bluetooth or Other Remote Control Link

Started by rickman in comp.arch.embedded4 years ago 21 replies

A friend has asked me for help with an idea he has which requires a simple RF link to control a 12 volt circuit. One end of the link would...

A friend has asked me for help with an idea he has which requires a simple RF link to control a 12 volt circuit. One end of the link would need an MCU to collect the inputs and make a decision about the state of the 12 volt circuit. The RF link is used to control the 12 volt circuit. The MCU end would be battery powered and so needs to be low energy. It is only on with a very low dut...