This circuit is from the 80's documentation. The integrated circuit is from the time but can be implemented with modern equivalents. The power supply must be symmetrical.
June 2017 - Mouser Electronics announced the availability of new low-power Bluetooth modules from...
The circuit shown is a Step-Down converter that can provide a 5 A output with 4 to 18 V inputs. The...
This switch is triggered by the touch of the sensors, which can be two metal plates. These plates...