1. B

    LCD Help Please!

    Hello, I have a screen here that I would really like to use for a project as it's the perfect size. And it was free. But I can't find any information on how to connect to it. I.e controller / input boards and such. Any help would be awesome!!! Here are some pictures of the stickers, and also the...
  2. K

    A problem in interfacing the LCD with 3 wires (using Texas instruments 74HC595)

    I try to interface with 16x2 LCD using 74HC595 shift register from Texas Instruments. I uploaded the following code : ;AT89C51 ;24MHz ;SHIFT REGISTER PINS CLK BIT P1.0 STR BIT P1.1...
  3. K

    Writing a String on Hitachi LCD using AT89S52

    I try writing a string instead of writing letter by letter. So, I tried this code: ORG 00H RS BIT P2.7 E BIT P2.6 MOV SP, #25H MOV P1, #00H MOV P2, #00H MOV TMOD, #01H...
  4. K

    4-bit mode of LCD-1602 using 8052 µc

    I try writing "NO" in the LCD using 4-bit mode. So, I programmed the AT89S52 to send the upper nibble first to the last 4 data inputs of the LCD. I used AND operation to eliminate the lower nibble. Afterwards, I cleared the RS bit and send a HIGH-TO-LOW enable pulse. The same code for the lower...
  5. BobaMosfet

    Datasheet for Mystery LCD Desired

    All- If I can get a datasheet from someone for this, I'd be grateful. I can take the time to empirically determine the pinout myself, but I'm actually in a time-crunch as it is and don't want to do that unless I have no choice. I have a 44-pin monochrome LCD that is a mix of 7 and 14...
  6. hopalele74

    Is this a good way to dim a 5-inch LCD for my Raspberry Pi?

    Hi. I'm trying to make a DPI display to work with my Raspberry Pi. First, I searched around and found out that the 555 timer IC is a good way to control the brightness of the display. And since the background LEDs needs around 23V to function, I've included a step up converter. It's for a LCD...
  7. M

    Please help me with getting the values from the digital meter to raspberry pi

    I am doing a project on automating a hydroponic system to grow tomatoes. I need a TDS sensor to measure Total Dissolved salts. I searched a lot for a sensor but I was not able to find a sensor that satisfies my requirement. I need a sensor that can measure high ppm. But, the sensors are only...
  8. robi10101298

    Help in design in Proteus, with an LM35

    I'm trying to build a graphic display thermometer in Proteus, with an LM35 sensor using the ATmega 164 microcontroller. My problem is that I don't know how to connect the temperature sensor to the microcontroller and how can I code this using CodeVision AVR? What am I doing wrong? Are the...
  9. Lucky-Luka

    16x02 LCD + I2C module problem

    Hi all I was trying to make my 16x02 LCD+I2C module work. I failed. This is my LCD: LCD+I2C PCF8574T is written on the I2C module chip. I've tried two different pin configurations of the I2C module in the sketch however nothing still appears on the monitor (yes, I've tried to adjust the...
  10. P

    Electronics rookie trying to convert broken LED display into skylight

    Hi all New here! I am looking to convert my broken LED display into a skylight, something like DIY Perks youtube videos. I was able to disassemble the display and get the lens layers and broken panel off. But i am unable to figure out exactly how to bypass the signal detection stage of the...
  11. N

    8051 microcontroller operating like Solitaire - University Assignment

    I was tasked with creating a certain 8051 microcontroller project by my professor and I am keen to build the project all by myself, however, in order to carry out the given assignment, I may need some expert guidance. The project description is provided in below paragraph. The microcontroller...
  12. Kyle M 1

    HDMI to RGB interface Converter fro LCD Display

    I have recently started a project and am using a round 4.21 in 720x720 display and cant find a way of converting from HDMI to RGB interface for the LCD. If you have any boards that would work or anyway i can just use/modify a exciting board on the market or someone i can talk to about this...
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