Adaptive brightness control for seven segment LED displays

Raj made a temperature and relative humidity meter to demonstrate adaptive brightness control on a seven segment LCD. The system uses a LDR light sensor in a closed loop to continuously adjust the brightness of the LEDs. The objective of this project is to illustrate a technique of implementing adaptive brightness control to seven segment […]

Dual 4 digit 7-segment display board with SPI interface

Raj built a dual, 7-segment, display board with SPI interface. The board is based around the MAX7219 8x 7-segment display driver, which receives commands over SPI, and drives the display accordingly. The new display features eight 7-segment displays arranged in two rows of four digits. The on-board MAX7219 driver enables you to easily add eight […]