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Found 10 results

  1. Hi All, I am working on a project using the CC1310 LaunchPad, and it will be powered directly from a 3V (nominally) battery. I want to use the ADC to accurately read the voltage from one of my sensors, and the problem that I am having is that the reference seems to be relating to the voltage the LaunchPad is running from. I have tried using analogReference(), but it wont compile with the parameter INTERNAL1V5, and when i try INTERNAL2V5 it does compile, but it still seems to be using the battery voltage as the ADC reference. Please can someone explain how I can get a stable vol
  2. TI has updated the Battery BoosterPack, price is $24.99 USD from TI: 3.7V 12000mAh lithium polymer battery On- board lithium polymer charger On- board gas gauge USB charging with indicator LED Battery status outputs
  3. Found a nice app note by TI, and wrote some thoughts on it: Just recently read an app note that targets your same circumstances. Using power solutions to extend battery life in MSP430 applications By TI's Michael Day. While it uses the MSP430 as its target, the same applies to any MCU. Depending on the MCU's Current vs Voltage, and Voltage vs Clock Speed, using an LDO with a low Quiescent Current will be much better than powering the MCU directly off the battery. The example uses 2x AA, and a TPS780xx regulator with 0.5
  4. Hi Guys, My name is Nathan. I've lurked around here on 43oh a bit, but this is my first official post. I've been working with the MSP430FR5969 for several months now and I've quickly grown to really like it. It seems to me TI's FRAM processors should really be getting more exposure for battery powered development in both professional and maker communities. To that end - I was hoping to get some feedback on a product idea. We've packaged the FR5969 into a tiny coin-cell powered module. The module can operate as a stand-alone processor or it can plug into an UNO-form-factor breakout
  5. Last updated: May 07, 2015 May 07: added SBM-20 background CPM value vs 1kg potassium salt and python code to log the data. April 26: added deadtime image. April 23: updated to 75
  6. Hello , i finished my project and now i want do work the MSP430 G2553 standalone (without the Launchpad). It works with 3 ultra bright LEDs and are stored under the case of a lamp box with plexiglass. What kind of batteries would you recommend me to hold those 3,3V for the longest time? Or just tell me how you are driving your MSP430 standalone? Thanks !
  7. I have debian distro running on BBB and have installed a LCD4 cape and an external battery (per http://www.element14.com/community/community/knode/single-board_computers/next-gen_beaglebone/blog/2013/08/10/bbb--rechargeable-on-board-battery-system) Question is, how does one go about shutting down BBB and LCD4? Executing halt command (via ssh) or pressing power button does shut the processor down but not the voltage rails to the LCD4 and backlight stays on. Suggestions appreciated. ~C
  8. Hi all, I am new to MSP430 (and basically, topics on this forum) and I will probably ask some stupid questions, but I have to ask them anyway I just got myself a Launchpad, and I want to run this project http://nostarch.s3.amazonaws.com/arduino_project6.pdf using Energia. My questions are: 1) If I copy the Arduino code, change the connected pins in the code from D2,D4 and D6 to 6,7 and 8 base on this reference (P1.4, P1.5, P2.0) http://energia.nu/img/LaunchPadMSP430G2553-V1.5.jpg and connect it, will it work? 2) Do I have to use 3 x 560 Ohm & 1 x 2,2k Ohm resistors, as shown od
  9. There's a few threads on MSP430 audio playback and they've prompted me to wonder what's the best way to actually play the audio (i.e. drive a speaker, piezo) for a simple battery-powered kid's toy? A lot of stuff I can find on audio generation stops at the output to an amplifier. I've seen a few examples of directly driving a speaker (via a low pass filter) from a microcontroller pin but that doesn't seem ideal. The background to this: My 1.5 year old son likes sitting on and starting my motorbike and I've just got him his first balance bike. I'm sure he'd love a starter button and some en
  10. Greetings, If I remember correctly the MSP430G2553 allows you to read ADC channel 11 to get the value for VCC. I use code on my arduino boards, as well as the ATTiny chips to read the battery voltage so that I can monitor it. Anybody have any idea of the same sort of thing is possible on the StellarPad? Thank you! L293D
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