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Sparkfun


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  1. Is there a way to use the SoftwareSerial library on the Stellaris Launchpad TM4C123GXL board? I am trying to connect a Sparkfun serial enabled LCD screen to the board but the SoftwareSerial library is only compatible with 20, 16, and 8 MHz processors, and the TM4C123GXL is an 80 MHz chip. How can I use this LCD screen with the Stellaris Launchpad over a UART connection? Do I need to use SoftwareSerial or can I do without it? I am programming in Energia 0101E0017 on Windows 7 64 bit. Any help is greatly appreciated, thanks!
  2. 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.beg
  3. Hello, I'm trying to get a standard 1602 LCD (16x2 from Raystar) connected to MSP432 with the I2C interface. Are there any existing libraries which could help me out? I've found some I2C libraries for Arduino but naturally they're not compatible, and the only existing Energia examples deal with CogLCD which uses a SPI interface (emerging question: is there a way to make SPI and I2C compatible?) or standard 16 pin connection. MSP432 is still a relatively fresh chip, so I can't find any examples whatsoever. Thanks!
  4. While searching for a font creator I found an interesting one here: http://www.mikrocontroller.net/topic/99701#865331 It creates fontdata that are bit aligned so was a bit tricky to render but I have managed to create code that does that. By default it generates proportional fonts (from True Type) and also includes the top bit set characters that I need for my radio library. So, here is my initial code for rendering fonts generated by this utility - please note it is cannot handle fonts higher than 24 pixes. Add as font.h or to graphics.h: #include <stdbool.h> typedef struct F
  5. I have few questions for users of LCD BoosterPacks.
  6. hello all! why are energia wire lib don't work? I have connected my launchpad 430g2553 to PCF8576 LCD 10. P1_6 to SDL and P1_7 to SDA . I try to write some code to use Software I2C Library but it did't work in energia . But EAR lib for software i2c work correct way. what i can to do to connect LCD with energia ? no software no hardware energia code don't work what 's the reason?
  7. Hello, I have being working on getting a 20x4 LCD (HD44780) working on the CC3200 launchpad and have not been able to get it working. I have found a few posts with partial code and partial libraries but have not been able to find an SPI or I2C example that works. Does anyone have a working implementation of the HD44780 on the CC3200 in either I2C, Serial or SPI mode? This is seems to be the closest I have found ( https://github.com/remixed123/CC3200-hd44780-lcd ) ... but I am unable to get it working. If anyone has been able to get this working, could you send me a simple "hello wor
  8. MSP432 version of my Universal Graphics Library. Works with my latest Color LCD BoosterPacks, 2.2" and 2.4" (320x240) Touch support will be added in late April. ugl432.zip
  9. Hello, I have a Stellaris Launchpad LM4F120XL Board and I am trying to interface with an 16x2 LCD. My LCD requires 5V and my Stellaris Launchpad has 3.3V output power pin. I have 2 questions, 1) Would it be alright if I connected the LCD to an external 5V supply and connected the data pins (D0-D7) to the Stellaris Launchpad GPIOs or do I have to have an LCD that operates on 3.3V supply? 2) Will it work if I connected the LCD to the 3.3V output power pin of the Stellaris Launchpad and connected the data pins (D0-D7) to the Stellaris Launchpad GPIOs ? Thank You
  10. Hi Has anyone successfully connected two TFT LCD displays to Tiva-C Launchpad? How much work would be to modify the graphics libraries to do so? Would two different LCD models be easier to do? I am aware that parallel connection is probably not possible due to lack of pins. Thanks for any suggestions.
  11. New LCD BoosterPacks are here. Both are 2.4" 320x240, one with touch panel, one without. Both feature the same pinout as their "little" 2.2" brother, same configuration options and SD socket. Can be used with my graphics library without any changes! Available on Tindie 2.4 LCD BP v3.pdf 2.4 LCD BP v2.pdf
  12. New LCD BoosterPacks are here. Both are 2.4" 320x240, one with touch panel, one without. Both feature the same pinout as their "little" 2.2" brother, same configuration options and SD socket. Can be used with my graphics library without any changes! V2 schematic (note that BL MOSFET is optional) - 2.4 LCD BP v2.pdf V3 schematic - 2.4 LCD BP v3.pdf
  13. Does anyone have a link to a library that will let me use the two row 1602 LCD display unit with the CC3200 Launchpad? thanks
  14. MSP430F5529 has two I2C interfaces, using P3.0/P3.1 (SDA/SCL) and P4.2/P4.1 (SCL/SDA) and two SPI interfaces using P3.0/P3.1/P3.2/P2.7 (MOSI/MISO/SCK/CS) and P4.2/P4.1/P4.3/P4.0 (MISO/MOSI/SCK/CS). How, or rather maybe, what is the best way to access the non-default I2C/SPI peripherals, without resorting to modifying the Energia core? For instance, I am using the LiquidCrystal_I2C library found here, and it works fine on the G2553 and F5529, but I'd like to move the LCD over to the other I2C peripheral so I can use those pins for an SPI device. On Tiva, one can do "Wire.setMod
  15. Hello guys, I'm building a Holter ECG, and would like put one symbol on the LCD. Need to inform the user the level of charge that the battery has. And I would put the battery symbol so that information was given. But I am not getting, someone can give me an example of how I can put a symbol in a particular line of lcd
  16. I have a MSP430FR5969 launchpad with the Sharp 96x96 LCD boosterpack. The out of the box application had a splash screen. I am aware that using CCS with the library, I could display .c images using the MSP430 image reformer that is included with the graphics library but I'm not really good at coding in C. I came from the Arduino, so I'm more familiar with the energia. Is there any way to display these .c image files on energia?
  17. superbrew

    LCD Demo

    I have been working on some stuff with RobG's LCD backpack. Here is a short demo of my progress making a particle system and displaying a pciture. I know they are unrelated, but there is so much to do!
  18. I am having some problems initializing the LCD . µC I am using is LM3s6965. It has to be initialized in 4 bit mode, since 4 pins are only accesible. these are the ports PA6/I2CSCL - LCD_RW PA7/I2CSDA - LCD_RS PB2/I2C0SCL - LCD_D4_KEYB_F PB3/I2CSDA - LCD_D5_KEYB_E PB4/C0 - LCD_D6_KEYB_D PB5/C1 - LCD_D7 PB6/C0+ - LCD_E This problem is a big pain in the ass.. I would be very gratefull if anyone could find the error on why it is not working. I am of certain it just a minor thing, but i have my doubts.. LCD init code (1).zip
  19. Hello people, I'm doing a clock with MSP430g2553 chip.I need to make the text blink, each time I try set the hours, minutes, etc.. Example: HH... blink until I click in a button to jump to minutes; MM... blink until I click in a button to jump to seconds; can someone help me. Tanks in advance
  20. I'm looking for comments and suggestions to make this more generally useful. I have a pile of surplus character line LCDs based on the Hitachi HD44780 chipset. There are oodles of these available surplus, and really cheap, like $2 cheap. The probelm I see for most modern MCUs is that the LCDs are usually 5V I/O (at least for the surplus parts) parallel and chew up a lot of I/O slow so they require a bit of code to poll the display or timed delays to insure reliable operation. I'm not too motivated to reinvent the wheel, but all the options I've found seem to miss a lot. I've seen the Ad
  21. As discussed in this thread, I took a first stab at a Booster Pack for the 1.35" SHARP Memory Display. As suggested by @@greeeg, I added two footprints: FPC connector (on the back) zebra strip connector (on the front) While the outline is for the 1.35" variants (LS013B4DN01, LS013B4DN02, LS013B4DN04). The 1.28" (LS013B7DH03) and 1.26" (LS013B7DH01) displays should work too as the FPC cables are of similar length and zebra footprints are identical. The smaller, circular displays might work, but the length of the FPC cable might be too short. The larger displays have the same FPC ca
  22. Hi! I am new to here. Several months ago I got a Launchpad with two chips 2553 & 2452 inside the box. I am really enjoying it except one thing: They have no LCD driver. Considering an external LCD module will bring terrible power consumption, I wonder if I can drive a simple 3 1/2 digits 7 segments LCD with very little power consumption. After searching the internet I found Maxim's 4 digits decoder ICM7211 might be a choice, but it is hard to access and so expensive that I cannot accept. Another choice is to use BCD to 7 segments decoder, finally I found 4543 BCD to 7 segments decoder
  23. Here's what has been keeping me busy (apart from my real job) since just after Christmas - a timed camera remote. It is mostly code complete, although could do with a few tweaks here and there. The hardware however isn't quite finished as I'm still waiting for a few parts to be delivered before I can finally finish it - the most critical of which is the 2.5mm stereo plug to go into the camera. Consequently it hasn't actually fired my camera yet, but I'm confident it will work correctly when the final parts arrive. Background Many moons ago, I created a serial port remote release for my S
  24. Greetings, Where can I buy 160/320 segment LCD? Suggest me any online seller for the same. Thank you !!
  25. Hello, I am trying to interface my MSP430G2553 launchpad with an LCD (http://www.winstar.com.tw/UserFiles/ProductImages/12523136510757108108.jpg) but my characters look weird. I am using http://www.fibidi.com/arduino-lcd-16x2-characters/ with one potentiometer , with changing ports like this: #include <LiquidCrystal.h> // initialize the library with the numbers of the interface pins //LiquidCrystal lcd(8,9,4,5,6,7); LiquidCrystal lcd(P2_4,P2_5,P2_0,P2_1,P2_2,P2_3); void setup() { lcd.begin(16,2); lcd.setCursor(0,0); lcd.print("Hel
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