Useful tips for everyday
What is the function of pull-down resistor? The pull-down resistor holds the logic signal near to zero volts (0V) when no other active device is…
How hot do PTC heaters get? PTC heaters can be designed to operate anywhere between -40°C and 70°C (-40°F and 158°F). The threshold temperature is…
How is receiver sensitivity measured? To calculate receiver sensitivity, we add the overall noise figure of the receiver to the noise floor. This quantifies the…
Can I use LM386 instead of LM358? There’s no way. Do not just consider similar part numbers. LM358 is a BJT based op-amp as Ray…
Why does my 2 Finger scroll not work? Switch to the Touchpad tab (or Device settings if the tab is absent) and click on the…
How do I force a power cycle reset? Before assuming anything is actually broken, you should try to run a power cycle. To do this,…
How does a GPRS module work? GPRS is classed as being a packet switched network whereby radio resources are used only when users are actually…
Does a float switch need power? Normally Open Vs. A normally open float does not allow electricity through it when the float is freely hanging.…
How do I protect my touch screen? A plastic film protector only protects the screen from scratches, so it’s a much better idea to use…
How do you prevent an induction motor from crawling? The primary method of avoiding or minimizing these problems is to select an optimum number of…