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Found 8 results

  1. I would like to know if someone has worked between CC1310 and Arduino Uno, Mega, or anything.... Master\Slave type a thing? I swear to GOD, Texas instrument are great but their support is horrible
  2. Hello, I want to make a wireless thermometer using two microcontrollers. How do I write the code in Energia to transmit and receive a variable using a 433 Mhz RF module? Transmitter Setup: I have a TM4C123G connected to a RF transmitter using TX(3) pin 34 on the MCU. The TM4C123G is also connected to a LM34DZ Temp sensor. I need help to modify this working code to send the temperature variable using tx(3) pin 34 /*TM4C123G*/ //initializes/defines the output pin of the LM34 temperature sensor int outputpin= A11; // (pin # 2), use A11 analog input //--------------------------------------------------------------------- //this sets the ground pin to LOW and the input voltage pin to high void setup() { Serial.begin(9600); Serial3.begin(9600); //---------------------------------------------------------------------- } void loop() { int rawvoltage= analogRead(outputpin); float millivolts= (rawvoltage/4095.0) * 3300; float fahrenheit= millivolts/10; Serial3.write(fahrenheit); //transmits temperature to receiver Serial.println(fahrenheit);//displays temperatur on Serial monitor delay(200); } Receiver Setup: I also have a MSP432 connected to a RF receiver using rx pin 3 on the MCU. The MSP432 is connected to a 16x2 LCD. I need help to modify this working code to receive the temperature variable using rx pin 3 and display to the lcd. /*Receiver MSP432*/ #include <LiquidCrystal_I2C.h> #include <Wire.h> #define rfReceivePin 3 //RF Receiver pin = pin 3 unsigned int data = 0; // variable used to store received data byte address = 0x3F; // LCD I2C address int columns = 16; // number of columns on LCD int rows = 2; // number of rows on LCD LiquidCrystal_I2C lcd(address, columns, rows); //----------------------------------------------------------------- void setup() { lcd.init(); // initialize the lcd lcd.backlight(); } //----------------------------------------------------------------- void loop() { lcd.clear(); lcd.setCursor(0,0); data=analogRead(rfReceivePin); //listen for data on pin 3 lcd.print("Temperature"); lcd.setCursor(0,1); lcd.print(data); delay(500); }
  3. I have a Spikenzie Labs LCD screen with an interface (screen utilizes the HD44780 chipset). I have it connected to an MSP-EXP432P401R (Rev 1.0). I have finally got code working that allows me to write to the LCD screen through the serial monitor, however I can only write to the screen for a short but varying amount of time. Sometimes I can print to the screen for 5 seconds, sometimes only for 1 second before communication cuts out. Here is the code I am using: #include <Wire.h> #include <LiquidCrystal.h> #define addr 0x40 >> 1 void setup() { Wire.begin(); Serial.begin(9600); } void loop() { Wire.beginTransmission(addr); Wire.write(Serial.read()); Wire.endTransmission(); } My connections are as follows: LCD screen -> MSP432 VCC -> 5V GND -> GND SDA -> pin 10 SCL -> pin 9 I have also tried using a level shifting circuit on the data lines with no effect. Does anyone know what's going on and what I can do to fix this? Thank you
  4. Hello everyone! Just wanted to say thank you for all the support and guidance everyone in this forum has towards beginners, you guys have been of so much help!! Now, here is a question: I am trying to interface 2 microcontrollers, a MSP430F5529 with a C2000 F28335 I was told the MSP doesnt support CAN, I would have to convert SPI to CAN and go from there. What do you guys suggest? I have never successfully used communication protocols. Any good examples of send and receive out there? Thanks in advance!
  5. How do I ; Serial Communication Between Two Tiva™ C Series ek-tm4c123gxl. my best compliments
  6. How do I ; Serial Communication Between Two Tiva™ C Series ek-tm4c123gxl
  7. I am having trouble getting an external serial GPS device (GY-GPS6MV2) to communicate with my CC3200. I have this pin mapping set-up and I have connected pin 3 on the CC3200 to the TX pin of the GPS device. I have uploaded code that should make a test light turn off if it is receiving data, but the light remains on unless I type into the serial monitor. #define LED RED_LED void setup() { pinMode(3, INPUT); pinMode(4, OUTPUT); Serial.begin(9600); pinMode(LED, OUTPUT); Serial.println("GPS Module"); } void loop() { if (Serial.available()) { digitalWrite(LED, LOW); delay(100); Serial.println((char)Serial.read()); } else { digitalWrite(LED, HIGH); } } Please help!
  8. i have been sucessful(somewhat) in interfacing a PS2 keyboard with MSP430. usually for about ~25 keystrokes it works perfectly. after that parity error occurs in data and data after the corrupt-data is also corrupt. im supply keyboard 5V from external source and using POT to convert 5V to 3V. communication with keyboard is at 20-25Khz and MSP430 is running at 16Mhz. thing i tried (and didnt worked :-( ): tried another keyboard. circular queue to store temp data and then timer A1 to extract and decode. note: if im able to get first n data's then why is their a problem after that. im having 4 more interrupts going on (usci0_rx (@ 9600 baud, 4Mhz), usci_tx, timerA0 ( @ 7Hz), timerA1 ( @ 500Khz )). i have a MSP430G2553IN2. text data bss dec hex filename 6604 6 342 6952 1b28 build/diy-vt100.elf total code(see below) is in diy-vt100.tar.gz i had to remove doc/ , .git/ (size was ~100MB's) schematics are not according to project right now. ps2-scancode-en.c ps2.c port2.c port2.h ps2.h diy-vt100.tar.gz