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93 thoughts on “ Craziest Pin-Saving LCD Trick Ever! ” ... As long as he uses a long enough charge / discharge time, and the LCD is quick to sample the pins, should work fine. It’s a smart idea!

Notice that the contrast control (LCD pin 3), instead of using a typical 10K potentiometer, uses an LM334, which ensures a constant current of 200µA to ground (so the contrast does not need to be ...

STM32 SPI Programming. The programming is similar to the Arduino code. The same <SPI.h> library is used in programming STM32F103C8. It can be programmed using USB port without using FTDI programmer, ...

8-bit S08LG MCU family provides cost-effective LCD support for industrial and automotive applications. AUSTIN, Texas – May 6, 2009 – Liquid crystal displays (LCDs) have become essential and pervasive ...