4 and 19 pins are used to adjust the display contrast through a resistor. I use a 1 Mega Ohm variable resistor. Acceptable contrast ~270kOm.

How the platform helps streamline the design process. The custom options offered.

KitGuruTech Computex 2024: GAMDIAS - MEGA CASE count, LCD Coolers and more Posted: May 22, 2025 | Last updated: May 22, 2025 The KitGuru team has been over at Computex 2024 in Taipei - Leo managed ...

Ever wondered why your Arduino wasn’t programming, only to find out that the cable doesn’t have any data conductors? Worry not, [Spencer Maroukis] has got you covered with the USB Sleuth Cable ...

This study uses Arduino Mega microcontroller as the main control, proximity sensor to detect the presence of glass, and the HC-SR04 ultrasonic sensor as a determinant of high water levels and an SD ...

Arduino Display Library for SPI E-Paper Displays. Contribute to ZinggJM/GxEPD2 development by creating an account on GitHub.