3.3 v lcd display for sale

16X2 (S) COB LCDY/G-3.3 V Display is professional Monochrome LCD display for Industry application, include digital panel meter, UPS, inverter, multi-function meter, POS machines, Fuel Dispenser, Oil Dispenser, Gas Dispenser, Flow Meter, KWH Meter, Energy Meter, Water Meter, Gas Meter, Smart Meter, Clock. Our Character LCD Module 16*2 has various different models on shelf and accept custom develop to meet your special requirement. We can develop different interface like I2C, Serial, and we also have different font available.

3 pin: V0 is LCD contrast adjustment side, it is the weakest contrast when connecting positive-supply, and it is the highest contrast when connecting grounding power

5 pin: R/W is Read/write signal wire; high levels choose reading operation, low levels choose writing operation. When RS and RW both are low level, you can write Instructions or show the address. You can read the signal when RS is low, and RW is high. On the contrary, you can write data.

A project I"m working on started with an Arduino so everything was developed around 5V. Now a redesign of the electronics is using 3.3V circuits for 90% of the device, but the 2x16 character LCD modules are still 5V. I contacted the manufacturer and they don"t have a mechanically compatible unit running on 3.3V.

However, the data sheet for the controller chip indicates it runs off any voltage down to 2.7V. So it will work at 3.3V for sure. I guess the issue is the LCD itself may not be suited for 5V. When I"ve looked at LCDs in the past they seem to be made for one or the other voltage. Not sure what they optimize differently. But without simply trying a module on 3.3V (I don"t have one myself), anyone know if these things are actually voltage agnostic?

Of course the backlight will be dimmer on 3.3V and we can run that on 5V. I"d just like to not use an interface chip to convert between 3.3V and 5V logic. I would ask someone on the project to try it, but mostly people are rather busy with other stuff.

Dot-matrix liquid crystal display module.Divided into 4-bit and 8-bit data transmission methods. Provide 5 X7 dot matrix + cursor display mode. Provide display shows the data buffer DDRAM, character generator CGROM and character generator CGRAM. CGRAM can be used to store the font data of up to 8 graphic characters of 5 X 8 dot matrix defined by yourself. Provides a wealth of command settings: clear display; cursor return to origin; display on/off; cursor on/off; display characters flashing; cursor shift; display shift element, etc. Provides an internal power-on automatic reset circuit. When the external power supply voltage exceeds +4.5V, the module will be initialized automatically and the module will be set to the default display working state.