Usual shopping trolley is easy to adapt for transportation of bulk household items, if using metal corners or tubular elements from the old clamshells to increase cargo area, and if necessary to build also the front wall, as shown in the figure.
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AND THE SWITCH WILL BEEP IN RESPONSE
An audible alarm on digital microcircuits for switching on/off electronic devices with 12 V power supply. There are many devices in a car that are switched on by a key or a toggle switch....
PHOTOCELL PROTECTION
Photoswitch is a widespread element in various automatic systems, protective devices, meters, etc. depending on the tasks the system is triggered by a photocell can be made instantly...
