README: update battery to CR1220

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King Kévin 2021-12-08 16:25:47 +01:00
parent dc901efcbd
commit 9908eb3f61
1 changed files with 4 additions and 4 deletions

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@ -13,16 +13,16 @@ usage
Pictures of the device are available on the [wiki](https://wiki.cuvoodoo.info/doku.php?id=micro-usb_cable_tester).
Ensure a CR2032 or CR2025 coin cell is present in the holder on the back of the board.
A CR2032 coin cell is provided with the tester.
Ensure a CR1220 coin cell is present in the holder on the back of the board.
A CR1220 coin cell is provided with the tester.
Plug in the USB type A of the cable at the top, and the USB type micro-B at the bottom:
- when the red POWER LED lights up, the cable can be used to power a device (with up to 500 mA, according to USB 2.0 specification)
- when the blue DATA LED lights up, the cable can be used to transfer data
- when the red B.CHG (battery charging) LED lights up, the cable can be used to charge a device (with up to 1.5 A, according to USB Battery Charging 1.2 specification). This cable can not be used to transfer data. If the POWER LED is not on at the same time, the cable is defective
- when the green SHIELD LED lights up, the cable can be used for data transfer with High Speed devices (480 Mbit/s), else this cable should only be used for Full Speed devices (12 Mbit/s). If the DATA LED is not on at the same time, the cable is defective
- when the blue OTG LED lights up, this is a On-The-Go cable meant to connect a device (i.e. a memory stick) to a host with micro-B port (e.g. a phone). Such adapters can be tested without plugging in the type-A side
- when the orange B.CHG (battery charging) LED lights up, the cable can be used to charge a device (with up to 1.5 A, according to USB Battery Charging 1.2 specification). This cable can not be used to transfer data. If the POWER LED is not on at the same time, the cable is defective
- when the white OTG LED lights up, this is a On-The-Go cable meant to connect a device (i.e. a memory stick) to a host with micro-B port (e.g. a phone). Such adapters can be tested without plugging in the type-A side
battery charging
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