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  1. Hello there, I am new to this forum. I wanted a code which could help me create a neural network to correlate my sensor data and get the desired output. I am using MSP430G2553 micro-controller with Energia as the software. It will be a great help. Thanks in advance.
  2. Hello everyone relative noob here. I'm currently trying to use the Adafruit ADS1015 library with a ads1114. I had the single ended read working a few days ago however its no longer working and readADC_SingleEnded locks the loop(). I'm actually using a msp430g2553 with energia, but that doesnt explain why it worked before and no longer does. Has this ever happened to anyone else before? I also posted this on Arduino forums to see if they knew anything about why this is happening. Here is my code. #include <Wire.h> #include <Adafruit_ADS1015.h> //Adafruit_ADS1115 ads; /* Use th
  3. I'm trying to understand the comparator A+ and Timer capture mode for using honeywell SM351LT sensor. Can't quite seem to bind it together. Sensor is currenlty hooked up with permanent power supply. Comparator output on P1.7 is tied to an led and works pretty much as expected. Furthermore hardware pwm is running on P1.6 with ACLK at 32.768Khz crystal to stay in LPM3. If I put an led on this pin it light up briefly as expected. If I understand correctly the sensor should be powered on CCR0; Read Comparator at CCR1 after minimum 10us. printf reveals indeed 50 cycles between CCR0
  4. I am trying to write a simple button interrupt debounce routine without much success. I am seeing unexpected interrupts occurring. The logic I am using is to disable the button interrupt when first pressed and then re-enabling it when the watch dog timer expires. I have tried increasing the wdt interval but the momentary switch button is still bouncing and simply fires the button interrupt unexpectedly. I know I can write other debounce routines but I would like to stay out of polling or looping for low power reasons if at all possible. I am not sure if the issue is something with
  5. Hi All, Somehow I've made a stupid mistake with this weather thingie I put together and I can't figure out what's wrong. I need your help! Project description: Weather thingie - Reports temperature, humidity and light readings via bluetooth. Operation is simple, connect to the device and it will report something like "27 C 57 H 96 L\r\n" ~ every second. The LED on board will alternate state every second. I set this up on a breadboard before making the PCB as I was not familiar with the DHT11 or and quirky requirements it might have. The project worked fine on the breadboard. I su
  6. Hello all together, I need a very accurate timer for a midi clock. For that reason I need a timer, that is giving me for every beat 24 beats back. At hte same time, I need a serial connection with 31250baud. My question is now, how do I get a very, very accurate timer. The timer quarz is normaly 32768, and this is maybe a little bit to slow, becaus I want my bpm with one digit after the point like 121,1bpm. I have a MSP430G2553. Can I connect a 1MHz or even a 4MHz cristal to the
  7. A Short introduction on Programming ADC10 of MSP430 Launchpad and Displaying the ADC10 values on a LED Bar graph type Display. Full Tutorial can be found here
  8. Hi everyone! I am trying to get a PAC1710 chip as a slave working with the MSP430G2553. I am having a ton of trouble doing so and can't seem to even get the address of the slave for the msp. I am going off of the master_reader code as an example. My first question is I know that you need to give the slave an address but I am not sure how to do so. On the data sheet of the pac1710, the address is as follows - 0011000. Thanks!
  9. I was trying to port a sketch that used the Serial port with non standard UART parity and character length to Energia. I noticed that the UART port isn't setup to handle anything except 8-N-1. While the code below can't do all the combinations that are available to the atmega, it can do 7/8 bit, even/odd parity and 1/2 stop bits. I created a patch that will at least fix it for the chip I am using (msp430g2553). It will need some work for other chips. Apply the attached patch to the source of the latest Energia source tree. (as of 11/11/2015) -rick (See new optional second parameter
  10. This project is a submission for the 2015 Project of the Month Halloween contest. It came about as a request from my four year old grandson after he had seen the Blue Angels fly over during Seafair in Seattle. The basic air frame was constructed from two cardboard boxes as shown in the photograph below. . The boxes are attached to each other with brads and hot glue. Edges are reinforced where I felt necessary by folding extra cardboard over or gluing in reinforcement cardboard. Also shown in the photograph above are the following: wings, tail, and fins constructed from a corrugated pl
  11. The MCP3008 is an easily used 10bit, 8 channel, Serial Peripheral Interface (SPI) Analog to Digital Converter. I created an Energia library that can be found here and used to read any of the eight pins with a single call. Conversion is done for voltages between 0 and 3.3 V, including on the CC3200, and results in a integer reading between 0 and 1023. This library is for single ended operation only and uses hardware SPI. An example is included that demonstrates reading from all 8 channels. Tested with Energia 0101E0016 on the following LaunchPads * CC3200-LAUNCHXL Rev 4.1 (80 MH
  12. Hi all, I am facing problem while reading DHT values in timer ISR function. I am able to get the data if use i dht.readHumidity() (using dht library) in loop function but not able to get when i use in timer ISR function. Can anyone please help me out. Thanks in Advance.
  13. Hi all I am new to energia and need some help in writing a code into msp430G2553 by using timer interrupt Here what i am trying is taking the analog input from a sensor but using external interrupt and i want this using timer interrupt but i don't know how to do.. Please need ur help. Thank u.
  14. Hi, I am trying to operate a 3V relay (from OMRON) using MSP430G2553. The relay is a SPDT one, with 6 PINs. I am not quite sure how to wire a6 PIN relay (I have some experience with 5 PIN SPDT relay), and I cannot find much information in the internet. I was also told that, for driving a 3V relay, I would not require transistor + diode combination. For your information, the relay has a rated coil current of 50 mA. Can anyone help me on understanding the wiring structure of the relay? How to interface it with MSP430? Also, is it true that, I can operate the 3V relay without separate tra
  15. Hello, I bought a Sparkfun ML8511 UV sensor breakout and set it up according to this. It kind of works / I have a weird problem: No matter the voltage (3V or 3.3V), the sensor output values change periodically very strongly: Closer to UV-AB source: ~1.5 to ~10.5 to ~1.5 and so on (with more steps in between) (distance of course doesn't change). More away from the UV source: ~0.2 to ~1.5 to ~0.2 and so on. When I attach a 1.5V battery constant voltage source as a test, the displayed value is indeed rather constant ranging from 4.39 to 4.59, so it must be the sensor's problem? Google-i
  16. Dear Sir/Madam, I am trying to use MSP430 to talk with a wifi module using UART, technically, the msp430G2553 does not need to know the ip address for the wifi module, so the wifi module can be considered as another mcu. I have done the hardware and the calculation of voltage received and also converted to a string value. I can also read the values using hardware UART on serial monitor, but I now wants to send the results to the wifi module and check if the wifi module receives it on socket tools. My code are as below: #include <SoftwareSerial.h> // to the pins used:
  17. Hi, I'm trying to read analog values from a SHARP IR sensor GP2Y0A41SK0F using the MSP430F5529 launchpad. There was not any error when I verified and uploaded the codes in Energia. However, when I clicked on the Serial Monitor, nothing showed up. But when I chose the MSP430G2452 from the "Tools" menu, the monitor successfully showed the analog values. I connect Vcc (red wire) to 5 V pin, the ground (black wire) to GND pin, and the analog output (white wire) to P6.4 pin/A4 pin. The same thing also happened to the MSP430G2553 launchpad. It only works when MSP430G2452 is selected.
  18. Someone can helpme, i'm taking incorrect readings of a magnetometer I believe with the problem are in my i2c code implementation. /* * Print all printable characters on usb channel using UART mode of USCI module * the print is based in busy wait to transfer characters */ #include "msp/msp430g2553.h" void configureDCO(); void configureUART(); void putc(char); void print (const char[]); void print (short); void printStatus(); main() { configureDCO(); configureUART(); UCB0CTL1 = UCSWRST; //Reset USCI UCB0CTL0 = // USCI_B0 control register UCMST
  19. Hey Guys, I am new user of Energia. Currently, I am using MSP430G2553 chip to write data in SD card. I found code that works on USCIB0 SPI communication. Here is the link for the code. This code works completely fine. But, I wanted to know how can I change the code to use USCIA0 SPI instead of USCIB0 to do this? I tried going into pins_energia.h and just changing the pins. But it didn't work. Can anybody help me with this problem? Here is port assignment for different SPI buses USCIB0: (Code is using it) P1.6 -> master in slave out (MISO) P1.7 -> master out slave in (MOSI)
  20. Hi, everyone. I want to do a light web server (show temperature value and port control) with MSP430g2553 and ENC28j60 Breakout Module. At this forum, there are many examples about this issue using Energia lib. But I want to use IAR Embedded Workbench as IDE, not using Energia lib.So probably MSP430 and ENC28j60 communicate using SP?. How I do this project at IAR Embedded Workbench.Thank you
  21. 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
  22. Hi guys. For those who like 7-segment led displays, here is easy to use booster pack with digits! It has driver ic to control display and read buttons using I2C. Also is can be topped up with on board EEPROM, TMP102 sensor, Seiko RTC Crystal and 3.3V regulator. And this booster pack can be used standalone also. If you like it and want to get one, please support at Tindie.com Pictures are from prototype.
  23. Hi Everyone, I am using LED blinking program of Arduino on MSP430. I have configured compilers etc. Now the led turns on but it is not blinking. I have tried changing delay/sampling rate. Can someone point me the issue here?
  24. Hi, everyone! (I'm completely newbie, so excuse me if my questions are stupid) I made my first "device" (pic related). It works fine for a short period of time (like an hour or something like that), but then it goes crazy: led start blinking all the time and device don't respond when I change temperature. Could you please tell me, what's wrong? (I tried both - CR3024 battery and 3.3V power supply) #include <msp430.h> #include <RTCplus.h> RealTimeClock rtc; //initialise the global RealTimeClock instance int sensorPin = A3; // select the input pin for the potentio
  25. Hi! I tried to connect GPRS Shield from Arduino to msp430g2553 with SoftwareSerial library. But I faced with the problem. When the size of sketch exceeds 5590 bytes, global variables do not work. I just add one variable (global string) and the program stops executed correctly. Here is the code: /* When new serial data arrives, this sketch adds it to a String. When a '!' character is received, the loop prints the string "Hello world!" */ #include <SoftwareSerial.h> SoftwareSerial mySerial(P2_0, P1_5); String inputString = ""; // a string to hold incoming data boolean st
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