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RS-485 is an electrical standard, so it does not define any connector or pinout. … So if manufacturers want to use a 8P8C connector, they are free to do so and to define a pinout they want to use with it, and there is no single correct pinout. …

Pins named receive are the receive pins on a motherboard by default so they must be card transmit pins by default. If the devices support lane reversal then they can decide which one transmits or rece …

HOLD# is active low. If you set it low, it will set the chip in hold mode which makes it to ignore the communication interface. So if you want to communicate with the chip, don't set it low.

That display is a graphical display, while the HD44780 compatibles are character-based displays. They have different amount of pins. There is no way these have compatible pinouts.

You cannot know before you buy the cable if it connects CEC or not. But it really should so either you have a damaged or non-compliant cable. Yes, there is a specification for HDMI cables. And we cann …

In general the tab would be connected to the middle pin. So no, there is no reason to think the tab is GND. The tab is Vout, like on many other 1117 type regulators.

To answer your only question : Every wire in HDMI except CEC is needed to pass picture. If that connector even uses HDMI protocol, there is not enough pins to build a HDMI adapter, it needs to be more …

There are two questions. One about shorter connector pin and one about DVI display not working on Raspberry Pi HDMI output. One shorter pin is mandatory feature of the HDMI connector mechanical specs …

MAX485 A is high when data is logic 1. DMX512 + is high when data is logic 1. So MAX485 A pin is DMX data+.

It's the white dot just below the letter B. If you scroll on the next page of datasheet where you copied that picture, there is a picture with chips packed in tape and it also shows the alignment of p …

No, not possible to read voltage on secondary based on numbers on it. But the transformer is not a standard mains frequency transformer anyway, it's a high frequency switch mode transformer, so the …

You link to a page for shopping products. It's intended for purchasing items. The shop page has a link to product page which describes how to use the product. Please read the documentation on product …

Chop off one row again and it will almost match 22-pin SRAM pinout, just the WE needs to be moved somewhere else. … In retrospect, I should have mentioned in the beginning, that if you talk only about RAM chips, the pinout does not matter. …

The connection is not obvious, but as the pair used for pins 3&6 share a path between two transfoŕmer center taps via two 75 ohm resistors, there must be good enough signal for the link to work.

The LCD you have does not have a character interface of a HD44780 controller - the point of 8-bit character displays is that provides you an 8-bit ASCII compatible interface that can be connected to a …