About this deal
The headings in these Conditions are for convenience only and shall not affect their interpretation. There are different character fonts/texts available for ST7066 IC including English/Japanese, English/West European, English/Scandinavian European, or English/Cyrillic (Russian) as options.
WH2004L is 20 characters by 4 lines LCD display module which is built in with ST7066 controller IC; its default interface is 6800 4/8-bit parallel. This simplifies the number of wires needed and allows your project to display all kinds of text and numbers. I’ve saved a full log of what I’m trying for any offline contact - I haven’t been a member long enough to contact you via PM.Currently my Volimio installation runs smooth, controlled by rotary encoders and operating an amplifier via PlugIn. Our Character LCD provides you with a cost-effective industrial HMI user interface solution for that great product/project you are developing. py and also in the DAc, used for test a general I2S dac, wich can be bought for 7-8€, also have another generic wich I’ll try later. Fantastic LCD screen that works great with the Qwiic connectors as well as the breakout pins for I2C (have not tried SPI or serial). If you follow this tutorial, but forget the step sudo raspi-config (no need) and after the end replace /home/pi… with home/volumio… it will work!
That way you’ll only need to edit the pages file in /home/volumio/pydPiper and reference it in the plugin. I was able to work around this issue by sending my screen buffer line by line with a small delay in between, so no big deal.
Skill Level: Rookie - You may be required to know a bit more about the component, such as orientation, or how to hook it up, in addition to power requirements. The IIC interface is a little slow for some applications so I buffer the data and then update the display when the program has time. Literally plugged it in, downloaded the SerLCD library into the Arduino IDE, and ran a couple of example sketches.