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1

The "FTD1232" is actually an FTDIchip.com product such as FT232. Also, it is possible that the reset button is actually wired (not like in the diagram but really on the board) to the wrong side of the resistor? In that case pressing the button would directly short the 5V supply to ground, which matches the symptoms you describe.


1

That's a wire harness standard product. Cables are crimped and cut by machines and then are manually inserted in the plastic housings by workers. That's the standard workflow which has the minimum cost for customers. If you need a twisted wire harness than you need to pay more. By the way, a twisted cable will reduce EMI radiations especially for stepper ...


1

You cannot make correct continuity / resistance measurements with the DMM terminals / test leads connected to anything else that can provide voltage (and therefore current) - for example, the motorbike's battery. Doing so will interfere with the DMM readings, as the DMM uses an internal source (often a small constant current) to be able to measure resistance....


1

By using a multimeter and some common sense, we can: Ignore the colors. Check the expected pinout for the particular USB connector. Likely 1) +, 2) D+, 3) D-, 4) GND. Use a multimeter to tell which wire that happens to be connected to which pin, then connect them accordingly.


0

This is strange but probably the standard doesn't mandate the colours on the cable. However it mandates the cable specification. The two power cables (usually black and red) are of bigger cross section, while the data cable is a twisted pair. A simple multimeter on ohm or continuity will find the correct pairing. However if you simply hope to tie two cable ...


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The ringer voltage (90V AC) is considered non-touch safe, so it needs to be isolated so that you can’t come in contact with it. It is current limited though, so even if you do touch it it’s less hazardous generally than touching an AC power line. Noting the limited current for both ringer and switch-hook sense, 22ga wire is fine.


1

In Europe the ring signal is 90 Volts RMS. DC voltage greater than 50 V or AC peak voltage greater than 42 Vpeak are considered hazardous by IEC and by UL. That means that you have to be careful. Back in 1999 while I was prototyping a 2400 bps modem based on a TDK integrated transceiver, I got the ring signal on my fingers and I can tell you that it wasn't ...


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If the pump has two hot wires and a safety ground, but no Neutral, you should be able to connect it directly to the 220 V inverter 220 V and Ground output terminals.


4

simulate this circuit – Schematic created using CircuitLab Figure 1. On a split-phase supply L1 and L2 are 180° out of phase. L1 - N = 110 V. L2 - N = 110 V. L1 - L2 = 220 V. You saw something other than what you thought you saw.


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My 2 cents coz had the same problem with my grandson's rc. The stock battery died after 4-5 charges. Simply, get new 2 pieces 18650 battery. Unwrap the stock battery pack, unsolder the wirings with the balance connector. . Use that same wire exactly on the new batteries. Bingo, you just save couple of dollars for stock replacement battery! Test using the ...


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The type of motor, you have is shaded 4 poles motor. It does not have brushes and has squirrel cage rotor. That types of motors work only AC. Connection can be made only according to label on body.


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Would this imply that there's no separate wire for this function Yes. However, the way I see it on the diagram, with two switches connected by the vertical line, it seems that the off position is missing? Looking at the diagram, where would the middle position be? For some of these schematic symbols, you're just supposed to know. You know that you start ...


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