Technical design of the passive elements of the optowave network

Hello! I need a repair for the GSM-VoIP gateway GoIP4. The device is in a cyclic reboot (clicks every 2 minutes, does not accept calls). The power supply was replaced with a known working one, but this did not solve the problem; the symptoms remain the same (even without SIM cards). It seems the issue is in the internal power circuits on the board — most likely, the capacitors/stabilizers have dried out or burned out.

Hello! I need advice on selecting ready-made components for a small project. The task is to implement two functions: 1. Automatic raising and lowering of a wooden roof using an electric motor. ( plywood size 60x40cm) 2. Turning on and off internal LED lighting. It is important that I am specifically interested in selecting compatible ready-made components without soldering and developing electronics. I want to build a system from ready-made modules with connectors or terminal connections. I need help with the selection of: ● a suitable motor; ● a power supply; ● switches or limit switches; ● a controller (if necessary); ● buttons or other control elements; ● cables, connectors, and other necessary components. I would like to receive a list of specific parts that can be ordered, so that after purchase, it will only be necessary to connect them together and install them in the product. I would appreciate advice and assistance in selecting the optimal solution. I will send more details in a private message.

The type-C must match the hole on the step model : It should look impressive for the model + don't forget about the monitor output! Best on black textolite And to avoid the obvious impression that it is not working :) (for the average user) Show me the board in the case

A compact electro-mechanical control unit needs to be developed: a motor-reducer for connecting to an existing mechanism of gears and rails, controlled by a key with smooth lighting activation. Switch key - the mechanism is such that the key is inserted into the lock - different key turns trigger different actions. 1 - turning on/off the lighting 2 - starting the mechanism for lifting the covers A motor needs to be selected that will ensure smooth movement of the gears: The entire structure is 60x60 cm, and a small motor needs to be attached, along with miniature lighting. Part of the space for this is ready - if it's not enough, we will come up with a solution based on your recommendations.

Need a professional engineer to calculate and design a modular trailer platform with a load capacity of 60 tons for a ready-made chassis. There are factory drawings. Changes need to be made.