### DESCRIPTION

Multipurpose CPU, with AT89S52 (SMD)

This CPU is designed to work with the 7 segment SMD display, with serial control. It has an ISP connector for its programming, as well as auxiliary connectors to be able to use it in any other project. In this way different projects can be carried out, using a single PCB layout.

Double 7 segment display with serial control:

https://www.pcbway.com/project/shareproject/W56783BSN1_PCB_Display_2x7.html

Clock-Stopwatch-Temperature, chaining 4 x 7segment SMD modules with serial control

YouTube video:

https://youtu.be/n02-_XXpT2E

Reflexes and coordination trainer with 6 buttons:

The last assembly is focused on the rehabilitation and coordination of movements, being able to operate the buttons with the hands and the feet. The connection between the CPU and the control software is wireless, using the HC-05 Bluetooth module.

YouTube video:

https://youtu.be/mBfaJW9bmb8

### LEARN / TOPIC / BUILD INSTRUCTIONS

List of components with all kind of details to build a Clock-Chronometer-Thermometer, you can see them on my Web page:

http://j-rpm.com.es/2017/11/construye-un-reloj-smd/

Reflexes and coordination trainer:

http://j-rpm.com/2021/12/entrenador-de-reflejos-y-coordinacion/

...sorry, but it's in Spanish