Ted M.

1. Community
2. Graphic LCDs
3. Sample code for NHD-C12864A1Z

Hi dudeskie,Here is some example code for the NHD-C12864A1Z display /***************************************************************************** */ Program for writing to NHD-C12864A1Z display Se...

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• Ted M.
• July 20, 2020 09:00
• 0 votes

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3. NHD-0420DZ-NSW-BBW don't display any character

Hi Sioux1977,Please confirm the 4-bit mode is writing to the high order bits DB4 - DB7 on the display pins 11 to 14.The low order bits DB0 - DB3 on pins 7 to 10 should not be connected.  Regards,

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• Ted M.
• October 04, 2021 10:26
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2. Character LCDs
3. NHD-0216S3Z-FL-GBW-V3 Cannot Use I2C To Change I2C Address

Hi billtrib,The I2C address can be changed to any 8-bit value by command function, with the exception that the LSB (least significant bit) must always be ‘0’. Once the I2C address hasbeen changed, ...

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• Ted M.
• November 26, 2018 16:06
• 0 votes

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2. Character LCDs
3. anode voltage and resistor for NHD-C0220AZ-FSW-FTW

Hi Itsmit,The LED can be driven with a 5V source voltage when a 66.66 ohm resistor is added externally.  This will limit the LED current to 30mA and the LED voltage drop will be 3.0V.This online LE...

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• Ted M.
• March 20, 2019 08:40
• 0 votes

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2. Character LCDs
3. Reduce the brightness and burn in i of the oled character display NHD-0420CW-AB3

The contrast control for this display is the main way to reduce the brightness.The best way to reduce the image burn effects on a passive matrix OLED display is to provide even wear across all of t...

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• Ted M.
• February 22, 2019 08:51
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2. Character LCDs
3. NHD-C0220BiZ-FSW-FBW-3V3M stucking at "39"

This may be the issue with the slave address:// I2C LCD Slave address#define SLAVE_ADDRESS   0x3C    // 0x3C = (0x78<<1) since i2c sends 7 bit addressAlso, try slowing down the SPI clock frequency ...

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• Ted M.
• March 27, 2019 20:51
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2. Character LCDs
3. Setting the contrast NHDC0220BiZ-FS(RGB)-FBW-3VM issue

Hi,Please review the following example I2C code: #include <Wire.h>#define   RES   0//Pin A4 = Data//Pin A5 = Clockconst unsigned char slave = 0x3C;const unsigned char com = 0;const unsigned char da...

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• Ted M.
• August 31, 2019 10:44
• 0 votes

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2. Character LCDs
3. Help: NHD-0216S3Z-FL-GBW-V3 python modules for use over i2c

Hi Falcon,Thanks for your update on this as it sounds like you now have it working with a clock rate of 50 khz.The RPLCD Python library looks like a good option to consider using when programming f...

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• Ted M.
• September 15, 2019 09:18
• 0 votes

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2. Character LCDs
3. Cheap LCD character or bitmap display suggestions?

Take a look at our Color OLED Arduino Shield: https://www.newhavendisplay.com/nhd169aushield-p-9482.htmlBest Regards,

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• Ted M.
• April 25, 2019 14:40
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2. Character LCDs
3. NHD-0108CZ-FL-GBW initialization

Hi Glenn,The schematic in your attachment is showing that the display is connected for 4-bit parallel mode, but the data lines are connected to DB0-DB3.In order to configure this display for 4-bit ...

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• Ted M.
• June 27, 2019 09:46
• 0 votes