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sch: add power draw

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King Kévin 2024-05-27 20:38:26 +02:00
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README.md
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@ -8,6 +8,7 @@ usage
- ensure the tester has a non-empty battery in the CR2032/2025, or is externally powered through the USB power port
- plug one end of the cable in one of the host ports
- plug the other end of the cable in one of the devices ports
- if using a battery, press on the BAT ON button
- the tester will identify the cable's capabilities, on the left side
- the tester will then show the cable's purpose, on the right side
@ -60,6 +61,10 @@ The tester does not:
- read out capabilities from electronically marked cables
- guarantee USB cable compliance or conformity, as this is [very complex](https://www.usb.org/documents?search=&category%5B%5D=49&type%5B%5D=56&tid_2%5B%5D=41&items_per_page=50)
You can short the two pads marked BAT ON next to the battery with a solder blob.
This will always power the board and does not require you to press on the BAT ON button to do the test, like when powering through the USB POWER port.
But this will continuously drain 0.7 mA, emptying a CR2032 coin cell in 24 days.
alternatives
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