Stackable/ConfigurableIO Arduino UNO Shield LCD 1602 w/ Brightness Adjust Dial

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I feel good :slight_smile:

Simply plug in the shield to your Arduino Uno and ready to use. The text LCD 1602 (driven by the HD44780 driver) is very well supported by the Arduino platform with a driver API. Default IO pins are jumpered for you to use. You can configure/change the IO pins as well, by providing short female-to-female Dupont wires connected to your chosen pins and change your sketch's IO pin numbers accordingly.

You don't have to have an Arduino UNO to use this shield, although the shield is specifically made for the Arduino UNO. The shield can be also used as a standalone module. Any Arduino or microcontroller can use this shield as a standalone module, that is, not plugged in, by simply connecting the VCC (5V DC), GND, and other IO pins to the shield.

You can get this shield here or PM me. Thank you!

ArduinoUnoLCDShield
ArduinoUnoLCDShield1920×1446 587 KB

ArduinoUnoLCDShield-2
ArduinoUnoLCDShield-21920×2550 568 KB

ArduinoUnoLCDShield-3
ArduinoUnoLCDShield-31920×2550 604 KB

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Good product. By the way, the ebay link is not working.

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Usable idea,

Two remarks

  • The layout seems not suitable for an MEGA2560, as it might cover the reset button.
    rotating display might help.
  • I would prefer an I2C version as it would have more IO pins free for IO.
    Normally I use a 4x20 LCD (I2C), would that fit on a shield?
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PS,

please edit the subject of the thread to lower case where appropriate ..

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I don;t get it. I can do all that with 4 wires 2 of which are Gnd and VCC.

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>The layout seems not suitable for an MEGA2560, as it might cover the reset button.
rotating display might help.

There will be a version for the MEGA2560 board. This shield is specifically designed for the UNO, but it can be used as a standalone shield for other Arduinos or micronctroller. See OP.

>I would prefer an I2C version as it would have more IO pins free for IO.

Normally I use a 4x20 LCD (I2C), would that fit on a shield?

Coming soon a more elegent solution that offers I2C/SPI/UART communication layer to drive the 2x16 or 4x20 LCDs.

Thanks.

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Thanks. Looks like it works fine for me. Strange.

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>I don;t get it. I can do all that with 4 wires 2 of which are Gnd and VCC.

I know...I have two arms but they are attached to my body and go wherever I go. :-) See the picture? :-)

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My 1602 modules use 2 pins plus 2 power pins. What is it you are selling?

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Uses parallel data/command saving 2ms per character (with pre-wired potentiometer).

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compared to?

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IIC/I2C (the "backpack")

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@xfpd
I understood, I2C at 400kHz is ~2.5x faster in practice than 100kHz.
400 kHz is a speed supported by all I2C LCD devices.

My I2C_LCD library uses 5 bytes = 40 bits to send one character. lets say that 40 bits at 100kHz is (less than) 1 millisecond

So how can the parallel interface be 2 milliseconds faster than I2C?

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"2ms per character"...

I took "information" at face value from an "Everything you want to know about 1602" web page (a popular author). Paraphrasing: ["... parallel is better for higher speed applications saving 2ms per character (not noticeable to the human eye)... but long for high speed communications..."]. I associated that with "serial data" speed versus "parallel data" speed... and the claim of "faster" seemed true (but for the duration).

1 Like