20x4 serial lcd module in stock

The serial 20x4 LCD module from Nex-Robotics can be controlled by I2C or standard serial port with TTL 5V level signals. This dramatically reduces the number of pins consumed by LCD while interfacing with a microcontroller. It uses only two lines (TX and RX) for communication with any device. A well defined and easy to use protocol ensures smooth and error free operation.

Need a 4 line 20 character lcd for your product? Crystalfontz keeps stock of the most popular colors and interfaces for standard 20x4 character LCDs. We pride ourselves in being able to get our 20x4 lcd display modules in your hands quickly and with all the product support you can use. Our CFA635, CFA735, CFA634 are all intelligent lcd display modules, that have their own command set making integrating them into your product a much faster process than using a standard LCD module. If you"re looking for a 40x2 character lcd, we have those as well!

2012 latest IIC LCD2004-character LCD display modulea new high-quality 4 line 20 character LCD module not only set the contrast control knob selector switch also has a backlight and IIC communication interface. For Arduino beginnersnot for the cumbersome and complex LCD driver circuit connection and a headachethe real significance of this LCD module will simplify the circuitthis module directly into the Arduino Sensor Shield V5.0 sensor expansion board IIC device interface canGM 4P sensor connection cableprogrammed through the Arduino controlleryou can easily identify the slogansensor data records

This is really serious for me. The display was being used in a system that a user was travelling with. It has been working fine for weeks, but it seems that there is still a chance for these things to pick up garbage and freak out, even if it is not on the hardware serial lines.

Edit: I am going to call tech support in a few minutes but, for me, the issue is not whether I can recover this particular board. What I must do is put in place some kind of robust fix/hack to prevent this from happening again in the field. I can deal with SMT soldering, so if there"s a tested PCB fix in the works, I can likely implement it with a rework until it becomes available. Also, I don"t think it"s correct to suggest that Software Serial somehow was the cause of the LCD getting bricked.

Edit 2: I spoke with tech support, and they could neither give me any suggestions for work-arounds or re-works nor did they have a date for a replacement board. I"m experimenting with holding VPP low until the Arduino is booted and software serial is up and running.

Sadly, I am going to consider them a loss of time and money and am planning to replace them with another display module. If anyone has suggestions for a fix, I"m still all ears, but I can"t spend more time on this...