John's microcontroller projects

John keeps busy and exercises his brain and hands by making microcontroller devices. 

He usually makes a nice oak cabinet for them.

A set of clocks

A set of devices used to show information

A comprehensive system for continuously displaying and recording security events and environmental measurements.

Several devices using simple AM TX/RX modules for  control

A set of devices used to make measurements

A set of devices used to make measurements

A set of devices used to generate signals for measurements or testing

A set of devices used to acquire and store information

The remaining devices which do not belong to any of the other categories

Several devices using simple AM TX/RX modules for data communications

Several devices using simple AM TX/RX modules for  receiving control messages

This is a set of illuminated ornaments with various kinds of LEDs. They are controlled remotely by several of the transmitters in the RF Control section.