Toggle latches are a simple, versatile and secure means of closing and locking doors, cabinets and access panels. Toggle latches consist of a lever, tensioning hook and catch plate. To lock, the ...
This sensitive ON/OFF human interface, non-touch, proximity switch is a fun experiment and may just have some useful applications. A 74HC02 NOR gate acts as a high impedance capacitive sensor. It sets ...
This Toggle Switch uses the popular Johnson Decade counter IC CD4017. By giving positive pulses to its clock input, the ten outputs of the IC becomes high one by one provided the reset pin is grounded ...
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