3 Digit Dot Matrix Display with SPI interface is an advanced version of recently published 7×5 Dot Matrix Character Generator project. This design is more complex as it contains 4 microcontrollers. Three PIC16F88 were used to control 7×5 Dot Matrix Displays, one for each segment. All Slave modules are identical except for their address. Additional PIC/Display … Read more
This post is about building a simple PIC16F88 based DC motor controller. Motor speed and direction can be controlled by two push buttons SW1, SW2. One for motor speed and the other for polarity. This post follows recently published projects like PWM Fan Controller and 2 Channel PC Fan Controller that share a similar design. Instead of … Read more
In this post a basic character generator design based on PIC16F88 will be demonstrated. 7×5 Dot Matrix Display was used and its pin out is shown in the schematic below. Instead of using PIC16F876/7 microcontrollers PIC16F88 was chosen for this purpose. It has a smaller pin count but still has a sufficient number of I/O for … Read more